first commit

annotator/annotator_path.py

@@ -0,0 +1,17 @@
+import os
+import torch
+import utils.constants as const
+
+DEVICE = torch.device('cuda' if torch.cuda.is_available() else 'cpu')
+models_path = f'{const.CWD}/pretrained_models'
+
+clip_vision_path = os.path.join(os.path.dirname(os.path.abspath(__file__)), 'clip_vision')
+# clip vision is always inside controlnet "extensions\sd-webui-controlnet"
+# and any problem can be solved by removing controlnet and reinstall
+
+models_path = os.path.realpath(models_path)
+os.makedirs(models_path, exist_ok=True)
+print(f'ControlNet preprocessor location: {models_path}')
+# Make sure that the default location is inside controlnet "extensions\sd-webui-controlnet"
+# so that any problem can be solved by removing controlnet and reinstall
+# if users do not change configs on their own (otherwise users will know what is wrong)

annotator/binary/__init__.py

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+import cv2
+
+
+def apply_binary(img, bin_threshold):
+    img_gray = cv2.cvtColor(img, cv2.COLOR_RGB2GRAY)
+
+    if bin_threshold == 0 or bin_threshold == 255:
+        # Otsu's threshold
+        otsu_threshold, img_bin = cv2.threshold(img_gray, 0, 255, cv2.THRESH_BINARY_INV + cv2.THRESH_OTSU)
+        print("Otsu threshold:", otsu_threshold)
+    else:
+        _, img_bin = cv2.threshold(img_gray, bin_threshold, 255, cv2.THRESH_BINARY_INV)
+
+    return cv2.cvtColor(img_bin, cv2.COLOR_GRAY2RGB)

annotator/canny/__init__.py

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+import cv2
+
+
+def apply_canny(img, low_threshold, high_threshold):
+    return cv2.Canny(img, low_threshold, high_threshold)

annotator/clipvision/__init__.py

@@ -0,0 +1,127 @@
+import os
+import torch
+
+from modules import devices
+from modules.modelloader import load_file_from_url
+from annotator.annotator_path import models_path
+from transformers import CLIPVisionModelWithProjection, CLIPVisionConfig, CLIPImageProcessor
+
+
+config_clip_g = {
+  "attention_dropout": 0.0,
+  "dropout": 0.0,
+  "hidden_act": "gelu",
+  "hidden_size": 1664,
+  "image_size": 224,
+  "initializer_factor": 1.0,
+  "initializer_range": 0.02,
+  "intermediate_size": 8192,
+  "layer_norm_eps": 1e-05,
+  "model_type": "clip_vision_model",
+  "num_attention_heads": 16,
+  "num_channels": 3,
+  "num_hidden_layers": 48,
+  "patch_size": 14,
+  "projection_dim": 1280,
+  "torch_dtype": "float32"
+}
+
+config_clip_h = {
+  "attention_dropout": 0.0,
+  "dropout": 0.0,
+  "hidden_act": "gelu",
+  "hidden_size": 1280,
+  "image_size": 224,
+  "initializer_factor": 1.0,
+  "initializer_range": 0.02,
+  "intermediate_size": 5120,
+  "layer_norm_eps": 1e-05,
+  "model_type": "clip_vision_model",
+  "num_attention_heads": 16,
+  "num_channels": 3,
+  "num_hidden_layers": 32,
+  "patch_size": 14,
+  "projection_dim": 1024,
+  "torch_dtype": "float32"
+}
+
+config_clip_vitl = {
+  "attention_dropout": 0.0,
+  "dropout": 0.0,
+  "hidden_act": "quick_gelu",
+  "hidden_size": 1024,
+  "image_size": 224,
+  "initializer_factor": 1.0,
+  "initializer_range": 0.02,
+  "intermediate_size": 4096,
+  "layer_norm_eps": 1e-05,
+  "model_type": "clip_vision_model",
+  "num_attention_heads": 16,
+  "num_channels": 3,
+  "num_hidden_layers": 24,
+  "patch_size": 14,
+  "projection_dim": 768,
+  "torch_dtype": "float32"
+}
+
+configs = {
+    'clip_g': config_clip_g,
+    'clip_h': config_clip_h,
+    'clip_vitl': config_clip_vitl,
+}
+
+downloads = {
+    'clip_vitl': 'https://huggingface.co/openai/clip-vit-large-patch14/resolve/main/pytorch_model.bin',
+    'clip_g': 'https://huggingface.co/lllyasviel/Annotators/resolve/main/clip_g.pth',
+    'clip_h': 'https://huggingface.co/h94/IP-Adapter/resolve/main/models/image_encoder/pytorch_model.bin'
+}
+
+
+clip_vision_h_uc = os.path.join(os.path.dirname(os.path.abspath(__file__)), 'clip_vision_h_uc.data')
+clip_vision_h_uc = torch.load(clip_vision_h_uc)['uc']
+
+
+class ClipVisionDetector:
+    def __init__(self, config):
+        assert config in downloads
+        self.download_link = downloads[config]
+        self.model_path = os.path.join(models_path, 'clip_vision')
+        self.file_name = config + '.pth'
+        self.config = configs[config]
+        self.device = devices.get_device_for("controlnet")
+        os.makedirs(self.model_path, exist_ok=True)
+        file_path = os.path.join(self.model_path, self.file_name)
+        if not os.path.exists(file_path):
+            load_file_from_url(url=self.download_link, model_dir=self.model_path, file_name=self.file_name)
+        config = CLIPVisionConfig(**self.config)
+        self.model = CLIPVisionModelWithProjection(config)
+        self.processor = CLIPImageProcessor(crop_size=224,
+                                            do_center_crop=True,
+                                            do_convert_rgb=True,
+                                            do_normalize=True,
+                                            do_resize=True,
+                                            image_mean=[0.48145466, 0.4578275, 0.40821073],
+                                            image_std=[0.26862954, 0.26130258, 0.27577711],
+                                            resample=3,
+                                            size=224)
+
+        sd = torch.load(file_path, map_location=torch.device('cpu'))
+        self.model.load_state_dict(sd, strict=False)
+        del sd
+
+        self.model.eval()
+        self.model.cpu()
+
+    def unload_model(self):
+        if self.model is not None:
+            self.model.to('meta')
+
+    def __call__(self, input_image):
+        with torch.no_grad():
+            clip_vision_model = self.model.cpu()
+            feat = self.processor(images=input_image, return_tensors="pt")
+            feat['pixel_values'] = feat['pixel_values'].cpu()
+            result = clip_vision_model(**feat, output_hidden_states=True)
+            result['hidden_states'] = [v.to(devices.get_device_for("controlnet")) for v in result['hidden_states']]
+            result = {k: v.to(devices.get_device_for("controlnet")) if isinstance(v, torch.Tensor) else v for k, v in result.items()}
+        return result

annotator/color/__init__.py

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+import cv2
+
+def cv2_resize_shortest_edge(image, size):
+    h, w = image.shape[:2]
+    if h < w:
+        new_h = size
+        new_w = int(round(w / h * size))
+    else:
+        new_w = size
+        new_h = int(round(h / w * size))
+    resized_image = cv2.resize(image, (new_w, new_h), interpolation=cv2.INTER_AREA)
+    return resized_image
+
+def apply_color(img, res=512):
+    img = cv2_resize_shortest_edge(img, res)
+    h, w = img.shape[:2]
+
+    input_img_color = cv2.resize(img, (w//64, h//64), interpolation=cv2.INTER_CUBIC)  
+    input_img_color = cv2.resize(input_img_color, (w, h), interpolation=cv2.INTER_NEAREST)
+    return input_img_color

annotator/hed/__init__.py

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+# This is an improved version and model of HED edge detection with Apache License, Version 2.0.
+# Please use this implementation in your products
+# This implementation may produce slightly different results from Saining Xie's official implementations,
+# but it generates smoother edges and is more suitable for ControlNet as well as other image-to-image translations.
+# Different from official models and other implementations, this is an RGB-input model (rather than BGR)
+# and in this way it works better for gradio's RGB protocol
+
+import os
+import cv2
+import torch
+import numpy as np
+
+from einops import rearrange
+import os
+from annotator.annotator_path import models_path, DEVICE
+from annotator.util import safe_step, nms
+
+
+class DoubleConvBlock(torch.nn.Module):
+    def __init__(self, input_channel, output_channel, layer_number):
+        super().__init__()
+        self.convs = torch.nn.Sequential()
+        self.convs.append(torch.nn.Conv2d(in_channels=input_channel, out_channels=output_channel, kernel_size=(3, 3), stride=(1, 1), padding=1))
+        for i in range(1, layer_number):
+            self.convs.append(torch.nn.Conv2d(in_channels=output_channel, out_channels=output_channel, kernel_size=(3, 3), stride=(1, 1), padding=1))
+        self.projection = torch.nn.Conv2d(in_channels=output_channel, out_channels=1, kernel_size=(1, 1), stride=(1, 1), padding=0)
+
+    def __call__(self, x, down_sampling=False):
+        h = x
+        if down_sampling:
+            h = torch.nn.functional.max_pool2d(h, kernel_size=(2, 2), stride=(2, 2))
+        for conv in self.convs:
+            h = conv(h)
+            h = torch.nn.functional.relu(h)
+        return h, self.projection(h)
+
+
+class ControlNetHED_Apache2(torch.nn.Module):
+    def __init__(self):
+        super().__init__()
+        self.norm = torch.nn.Parameter(torch.zeros(size=(1, 3, 1, 1)))
+        self.block1 = DoubleConvBlock(input_channel=3, output_channel=64, layer_number=2)
+        self.block2 = DoubleConvBlock(input_channel=64, output_channel=128, layer_number=2)
+        self.block3 = DoubleConvBlock(input_channel=128, output_channel=256, layer_number=3)
+        self.block4 = DoubleConvBlock(input_channel=256, output_channel=512, layer_number=3)
+        self.block5 = DoubleConvBlock(input_channel=512, output_channel=512, layer_number=3)
+
+    def __call__(self, x):
+        h = x - self.norm
+        h, projection1 = self.block1(h)
+        h, projection2 = self.block2(h, down_sampling=True)
+        h, projection3 = self.block3(h, down_sampling=True)
+        h, projection4 = self.block4(h, down_sampling=True)
+        h, projection5 = self.block5(h, down_sampling=True)
+        return projection1, projection2, projection3, projection4, projection5
+
+
+netNetwork = None
+remote_model_path = "https://huggingface.co/lllyasviel/Annotators/resolve/main/ControlNetHED.pth"
+modeldir = os.path.join(models_path, "hed")
+old_modeldir = os.path.dirname(os.path.realpath(__file__))
+
+
+def apply_hed(input_image, is_safe=False):
+    global netNetwork
+    if netNetwork is None:
+        modelpath = os.path.join(modeldir, "ControlNetHED.pth")
+        old_modelpath = os.path.join(old_modeldir, "ControlNetHED.pth")
+        if os.path.exists(old_modelpath):
+            modelpath = old_modelpath
+        elif not os.path.exists(modelpath):
+            from basicsr.utils.download_util import load_file_from_url
+            load_file_from_url(remote_model_path, model_dir=modeldir)
+        netNetwork = ControlNetHED_Apache2().to(DEVICE)
+        netNetwork.load_state_dict(torch.load(modelpath, map_location='cpu'))
+    netNetwork.to(DEVICE).float().eval()
+
+    assert input_image.ndim == 3
+    H, W, C = input_image.shape
+    with torch.no_grad():
+        image_hed = torch.from_numpy(input_image.copy()).float().to(DEVICE)
+        image_hed = rearrange(image_hed, 'h w c -> 1 c h w')
+        edges = netNetwork(image_hed)
+        edges = [e.detach().cpu().numpy().astype(np.float32)[0, 0] for e in edges]
+        edges = [cv2.resize(e, (W, H), interpolation=cv2.INTER_LINEAR) for e in edges]
+        edges = np.stack(edges, axis=2)
+        edge = 1 / (1 + np.exp(-np.mean(edges, axis=2).astype(np.float64)))
+        if is_safe:
+            edge = safe_step(edge)
+        edge = (edge * 255.0).clip(0, 255).astype(np.uint8)
+        return edge
+
+    
+def unload_hed_model():
+    global netNetwork
+    if netNetwork is not None:
+        netNetwork.cpu()

annotator/keypose/__init__.py

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+import numpy as np
+import cv2
+import torch
+
+import os
+from modules import devices
+from annotator.annotator_path import models_path
+
+import mmcv
+from mmdet.apis import inference_detector, init_detector
+from mmpose.apis import inference_top_down_pose_model
+from mmpose.apis import init_pose_model, process_mmdet_results, vis_pose_result
+
+
+def preprocessing(image, device):
+    # Resize
+    scale = 640 / max(image.shape[:2])
+    image = cv2.resize(image, dsize=None, fx=scale, fy=scale)
+    raw_image = image.astype(np.uint8)
+
+    # Subtract mean values
+    image = image.astype(np.float32)
+    image -= np.array(
+        [
+            float(104.008),
+            float(116.669),
+            float(122.675),
+        ]
+    )
+
+    # Convert to torch.Tensor and add "batch" axis
+    image = torch.from_numpy(image.transpose(2, 0, 1)).float().unsqueeze(0)
+    image = image.to(device)
+
+    return image, raw_image
+
+
+def imshow_keypoints(img,
+                     pose_result,
+                     skeleton=None,
+                     kpt_score_thr=0.1,
+                     pose_kpt_color=None,
+                     pose_link_color=None,
+                     radius=4,
+                     thickness=1):
+    """Draw keypoints and links on an image.
+    Args:
+            img (ndarry): The image to draw poses on.
+            pose_result (list[kpts]): The poses to draw. Each element kpts is
+                a set of K keypoints as an Kx3 numpy.ndarray, where each
+                keypoint is represented as x, y, score.
+            kpt_score_thr (float, optional): Minimum score of keypoints
+                to be shown. Default: 0.3.
+            pose_kpt_color (np.array[Nx3]`): Color of N keypoints. If None,
+                the keypoint will not be drawn.
+            pose_link_color (np.array[Mx3]): Color of M links. If None, the
+                links will not be drawn.
+            thickness (int): Thickness of lines.
+    """
+
+    img_h, img_w, _ = img.shape
+    img = np.zeros(img.shape)
+
+    for idx, kpts in enumerate(pose_result):
+        if idx > 1:
+            continue
+        kpts = kpts['keypoints']
+        # print(kpts)
+        kpts = np.array(kpts, copy=False)
+
+        # draw each point on image
+        if pose_kpt_color is not None:
+            assert len(pose_kpt_color) == len(kpts)
+
+            for kid, kpt in enumerate(kpts):
+                x_coord, y_coord, kpt_score = int(kpt[0]), int(kpt[1]), kpt[2]
+
+                if kpt_score < kpt_score_thr or pose_kpt_color[kid] is None:
+                    # skip the point that should not be drawn
+                    continue
+
+                color = tuple(int(c) for c in pose_kpt_color[kid])
+                cv2.circle(img, (int(x_coord), int(y_coord)),
+                           radius, color, -1)
+
+        # draw links
+        if skeleton is not None and pose_link_color is not None:
+            assert len(pose_link_color) == len(skeleton)
+
+            for sk_id, sk in enumerate(skeleton):
+                pos1 = (int(kpts[sk[0], 0]), int(kpts[sk[0], 1]))
+                pos2 = (int(kpts[sk[1], 0]), int(kpts[sk[1], 1]))
+
+                if (pos1[0] <= 0 or pos1[0] >= img_w or pos1[1] <= 0 or pos1[1] >= img_h or pos2[0] <= 0
+                        or pos2[0] >= img_w or pos2[1] <= 0 or pos2[1] >= img_h or kpts[sk[0], 2] < kpt_score_thr
+                        or kpts[sk[1], 2] < kpt_score_thr or pose_link_color[sk_id] is None):
+                    # skip the link that should not be drawn
+                    continue
+                color = tuple(int(c) for c in pose_link_color[sk_id])
+                cv2.line(img, pos1, pos2, color, thickness=thickness)
+
+    return img
+
+
+human_det, pose_model = None, None
+det_model_path = "https://download.openmmlab.com/mmdetection/v2.0/faster_rcnn/faster_rcnn_r50_fpn_1x_coco/faster_rcnn_r50_fpn_1x_coco_20200130-047c8118.pth"
+pose_model_path = "https://download.openmmlab.com/mmpose/top_down/hrnet/hrnet_w48_coco_256x192-b9e0b3ab_20200708.pth"
+
+modeldir = os.path.join(models_path, "keypose")
+old_modeldir = os.path.dirname(os.path.realpath(__file__))
+
+det_config = 'faster_rcnn_r50_fpn_coco.py'
+pose_config = 'hrnet_w48_coco_256x192.py'
+
+det_checkpoint = 'faster_rcnn_r50_fpn_1x_coco_20200130-047c8118.pth'
+pose_checkpoint = 'hrnet_w48_coco_256x192-b9e0b3ab_20200708.pth'
+det_cat_id = 1
+bbox_thr = 0.2
+
+skeleton = [
+    [15, 13], [13, 11], [16, 14], [14, 12], [11, 12], [5, 11], [6, 12], [5, 6], [5, 7], [6, 8],
+    [7, 9], [8, 10],
+    [1, 2], [0, 1], [0, 2], [1, 3], [2, 4], [3, 5], [4, 6]
+]
+
+pose_kpt_color = [
+    [51, 153, 255], [51, 153, 255], [51, 153, 255], [51, 153, 255], [51, 153, 255],
+    [0, 255, 0],
+    [255, 128, 0], [0, 255, 0], [255, 128, 0], [0, 255, 0], [255, 128, 0], [0, 255, 0],
+    [255, 128, 0],
+    [0, 255, 0], [255, 128, 0], [0, 255, 0], [255, 128, 0]
+]
+
+pose_link_color = [
+    [0, 255, 0], [0, 255, 0], [255, 128, 0], [255, 128, 0],
+    [51, 153, 255], [51, 153, 255], [51, 153, 255], [51, 153, 255], [0, 255, 0],
+    [255, 128, 0],
+    [0, 255, 0], [255, 128, 0], [51, 153, 255], [51, 153, 255], [51, 153, 255],
+    [51, 153, 255],
+    [51, 153, 255], [51, 153, 255], [51, 153, 255]
+]
+
+def find_download_model(checkpoint, remote_path):
+    modelpath = os.path.join(modeldir, checkpoint)
+    old_modelpath = os.path.join(old_modeldir, checkpoint)
+        
+    if os.path.exists(old_modelpath):
+        modelpath = old_modelpath
+    elif not os.path.exists(modelpath):
+        from basicsr.utils.download_util import load_file_from_url
+        load_file_from_url(remote_path, model_dir=modeldir)
+        
+    return modelpath
+
+def apply_keypose(input_image):
+    global human_det, pose_model
+    if netNetwork is None:
+        det_model_local = find_download_model(det_checkpoint, det_model_path)
+        hrnet_model_local = find_download_model(pose_checkpoint, pose_model_path)
+        det_config_mmcv = mmcv.Config.fromfile(det_config)
+        pose_config_mmcv = mmcv.Config.fromfile(pose_config)
+        human_det = init_detector(det_config_mmcv, det_model_local, device=devices.get_device_for("controlnet"))
+        pose_model = init_pose_model(pose_config_mmcv, hrnet_model_local, device=devices.get_device_for("controlnet"))
+
+    assert input_image.ndim == 3
+    input_image = input_image.copy()
+    with torch.no_grad():
+        image = torch.from_numpy(input_image).float().to(devices.get_device_for("controlnet"))
+        image = image / 255.0
+        mmdet_results = inference_detector(human_det, image)
+        
+        # keep the person class bounding boxes.
+        person_results = process_mmdet_results(mmdet_results, det_cat_id)
+        
+        return_heatmap = False
+        dataset = pose_model.cfg.data['test']['type']
+        
+        # e.g. use ('backbone', ) to return backbone feature
+        output_layer_names = None
+        pose_results, _ = inference_top_down_pose_model(
+            pose_model,
+            image,
+            person_results,
+            bbox_thr=bbox_thr,
+            format='xyxy',
+            dataset=dataset,
+            dataset_info=None,
+            return_heatmap=return_heatmap,
+            outputs=output_layer_names
+        )
+        
+        im_keypose_out = imshow_keypoints(
+            image,
+            pose_results,
+            skeleton=skeleton,
+            pose_kpt_color=pose_kpt_color,
+            pose_link_color=pose_link_color,
+            radius=2,
+            thickness=2
+        )
+        im_keypose_out = im_keypose_out.astype(np.uint8)
+
+        # image_hed = rearrange(image_hed, 'h w c -> 1 c h w')
+        # edge = netNetwork(image_hed)[0]
+        # edge = (edge.cpu().numpy() * 255.0).clip(0, 255).astype(np.uint8)
+        return im_keypose_out
+
+
+def unload_hed_model():
+    global netNetwork
+    if netNetwork is not None:
+        netNetwork.cpu()

annotator/keypose/faster_rcnn_r50_fpn_coco.py

@@ -0,0 +1,182 @@
+checkpoint_config = dict(interval=1)
+# yapf:disable
+log_config = dict(
+    interval=50,
+    hooks=[
+        dict(type='TextLoggerHook'),
+        # dict(type='TensorboardLoggerHook')
+    ])
+# yapf:enable
+dist_params = dict(backend='nccl')
+log_level = 'INFO'
+load_from = None
+resume_from = None
+workflow = [('train', 1)]
+# optimizer
+optimizer = dict(type='SGD', lr=0.02, momentum=0.9, weight_decay=0.0001)
+optimizer_config = dict(grad_clip=None)
+# learning policy
+lr_config = dict(
+    policy='step',
+    warmup='linear',
+    warmup_iters=500,
+    warmup_ratio=0.001,
+    step=[8, 11])
+total_epochs = 12
+
+model = dict(
+    type='FasterRCNN',
+    pretrained='torchvision://resnet50',
+    backbone=dict(
+        type='ResNet',
+        depth=50,
+        num_stages=4,
+        out_indices=(0, 1, 2, 3),
+        frozen_stages=1,
+        norm_cfg=dict(type='BN', requires_grad=True),
+        norm_eval=True,
+        style='pytorch'),
+    neck=dict(
+        type='FPN',
+        in_channels=[256, 512, 1024, 2048],
+        out_channels=256,
+        num_outs=5),
+    rpn_head=dict(
+        type='RPNHead',
+        in_channels=256,
+        feat_channels=256,
+        anchor_generator=dict(
+            type='AnchorGenerator',
+            scales=[8],
+            ratios=[0.5, 1.0, 2.0],
+            strides=[4, 8, 16, 32, 64]),
+        bbox_coder=dict(
+            type='DeltaXYWHBBoxCoder',
+            target_means=[.0, .0, .0, .0],
+            target_stds=[1.0, 1.0, 1.0, 1.0]),
+        loss_cls=dict(
+            type='CrossEntropyLoss', use_sigmoid=True, loss_weight=1.0),
+        loss_bbox=dict(type='L1Loss', loss_weight=1.0)),
+    roi_head=dict(
+        type='StandardRoIHead',
+        bbox_roi_extractor=dict(
+            type='SingleRoIExtractor',
+            roi_layer=dict(type='RoIAlign', output_size=7, sampling_ratio=0),
+            out_channels=256,
+            featmap_strides=[4, 8, 16, 32]),
+        bbox_head=dict(
+            type='Shared2FCBBoxHead',
+            in_channels=256,
+            fc_out_channels=1024,
+            roi_feat_size=7,
+            num_classes=80,
+            bbox_coder=dict(
+                type='DeltaXYWHBBoxCoder',
+                target_means=[0., 0., 0., 0.],
+                target_stds=[0.1, 0.1, 0.2, 0.2]),
+            reg_class_agnostic=False,
+            loss_cls=dict(
+                type='CrossEntropyLoss', use_sigmoid=False, loss_weight=1.0),
+            loss_bbox=dict(type='L1Loss', loss_weight=1.0))),
+    # model training and testing settings
+    train_cfg=dict(
+        rpn=dict(
+            assigner=dict(
+                type='MaxIoUAssigner',
+                pos_iou_thr=0.7,
+                neg_iou_thr=0.3,
+                min_pos_iou=0.3,
+                match_low_quality=True,
+                ignore_iof_thr=-1),
+            sampler=dict(
+                type='RandomSampler',
+                num=256,
+                pos_fraction=0.5,
+                neg_pos_ub=-1,
+                add_gt_as_proposals=False),
+            allowed_border=-1,
+            pos_weight=-1,
+            debug=False),
+        rpn_proposal=dict(
+            nms_pre=2000,
+            max_per_img=1000,
+            nms=dict(type='nms', iou_threshold=0.7),
+            min_bbox_size=0),
+        rcnn=dict(
+            assigner=dict(
+                type='MaxIoUAssigner',
+                pos_iou_thr=0.5,
+                neg_iou_thr=0.5,
+                min_pos_iou=0.5,
+                match_low_quality=False,
+                ignore_iof_thr=-1),
+            sampler=dict(
+                type='RandomSampler',
+                num=512,
+                pos_fraction=0.25,
+                neg_pos_ub=-1,
+                add_gt_as_proposals=True),
+            pos_weight=-1,
+            debug=False)),
+    test_cfg=dict(
+        rpn=dict(
+            nms_pre=1000,
+            max_per_img=1000,
+            nms=dict(type='nms', iou_threshold=0.7),
+            min_bbox_size=0),
+        rcnn=dict(
+            score_thr=0.05,
+            nms=dict(type='nms', iou_threshold=0.5),
+            max_per_img=100)
+        # soft-nms is also supported for rcnn testing
+        # e.g., nms=dict(type='soft_nms', iou_threshold=0.5, min_score=0.05)
+    ))
+
+dataset_type = 'CocoDataset'
+data_root = 'data/coco'
+img_norm_cfg = dict(
+    mean=[123.675, 116.28, 103.53], std=[58.395, 57.12, 57.375], to_rgb=True)
+train_pipeline = [
+    dict(type='LoadImageFromFile'),
+    dict(type='LoadAnnotations', with_bbox=True),
+    dict(type='Resize', img_scale=(1333, 800), keep_ratio=True),
+    dict(type='RandomFlip', flip_ratio=0.5),
+    dict(type='Normalize', **img_norm_cfg),
+    dict(type='Pad', size_divisor=32),
+    dict(type='DefaultFormatBundle'),
+    dict(type='Collect', keys=['img', 'gt_bboxes', 'gt_labels']),
+]
+test_pipeline = [
+    dict(type='LoadImageFromFile'),
+    dict(
+        type='MultiScaleFlipAug',
+        img_scale=(1333, 800),
+        flip=False,
+        transforms=[
+            dict(type='Resize', keep_ratio=True),
+            dict(type='RandomFlip'),
+            dict(type='Normalize', **img_norm_cfg),
+            dict(type='Pad', size_divisor=32),
+            dict(type='DefaultFormatBundle'),
+            dict(type='Collect', keys=['img']),
+        ])
+]
+data = dict(
+    samples_per_gpu=2,
+    workers_per_gpu=2,
+    train=dict(
+        type=dataset_type,
+        ann_file=f'{data_root}/annotations/instances_train2017.json',
+        img_prefix=f'{data_root}/train2017/',
+        pipeline=train_pipeline),
+    val=dict(
+        type=dataset_type,
+        ann_file=f'{data_root}/annotations/instances_val2017.json',
+        img_prefix=f'{data_root}/val2017/',
+        pipeline=test_pipeline),
+    test=dict(
+        type=dataset_type,
+        ann_file=f'{data_root}/annotations/instances_val2017.json',
+        img_prefix=f'{data_root}/val2017/',
+        pipeline=test_pipeline))
+evaluation = dict(interval=1, metric='bbox')

annotator/keypose/hrnet_w48_coco_256x192.py

@@ -0,0 +1,169 @@
+# _base_ = [
+#     '../../../../_base_/default_runtime.py',
+#     '../../../../_base_/datasets/coco.py'
+# ]
+evaluation = dict(interval=10, metric='mAP', save_best='AP')
+
+optimizer = dict(
+    type='Adam',
+    lr=5e-4,
+)
+optimizer_config = dict(grad_clip=None)
+# learning policy
+lr_config = dict(
+    policy='step',
+    warmup='linear',
+    warmup_iters=500,
+    warmup_ratio=0.001,
+    step=[170, 200])
+total_epochs = 210
+channel_cfg = dict(
+    num_output_channels=17,
+    dataset_joints=17,
+    dataset_channel=[
+        [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16],
+    ],
+    inference_channel=[
+        0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16
+    ])
+
+# model settings
+model = dict(
+    type='TopDown',
+    pretrained='https://download.openmmlab.com/mmpose/'
+    'pretrain_models/hrnet_w48-8ef0771d.pth',
+    backbone=dict(
+        type='HRNet',
+        in_channels=3,
+        extra=dict(
+            stage1=dict(
+                num_modules=1,
+                num_branches=1,
+                block='BOTTLENECK',
+                num_blocks=(4, ),
+                num_channels=(64, )),
+            stage2=dict(
+                num_modules=1,
+                num_branches=2,
+                block='BASIC',
+                num_blocks=(4, 4),
+                num_channels=(48, 96)),
+            stage3=dict(
+                num_modules=4,
+                num_branches=3,
+                block='BASIC',
+                num_blocks=(4, 4, 4),
+                num_channels=(48, 96, 192)),
+            stage4=dict(
+                num_modules=3,
+                num_branches=4,
+                block='BASIC',
+                num_blocks=(4, 4, 4, 4),
+                num_channels=(48, 96, 192, 384))),
+    ),
+    keypoint_head=dict(
+        type='TopdownHeatmapSimpleHead',
+        in_channels=48,
+        out_channels=channel_cfg['num_output_channels'],
+        num_deconv_layers=0,
+        extra=dict(final_conv_kernel=1, ),
+        loss_keypoint=dict(type='JointsMSELoss', use_target_weight=True)),
+    train_cfg=dict(),
+    test_cfg=dict(
+        flip_test=True,
+        post_process='default',
+        shift_heatmap=True,
+        modulate_kernel=11))
+
+data_cfg = dict(
+    image_size=[192, 256],
+    heatmap_size=[48, 64],
+    num_output_channels=channel_cfg['num_output_channels'],
+    num_joints=channel_cfg['dataset_joints'],
+    dataset_channel=channel_cfg['dataset_channel'],
+    inference_channel=channel_cfg['inference_channel'],
+    soft_nms=False,
+    nms_thr=1.0,
+    oks_thr=0.9,
+    vis_thr=0.2,
+    use_gt_bbox=False,
+    det_bbox_thr=0.0,
+    bbox_file='data/coco/person_detection_results/'
+    'COCO_val2017_detections_AP_H_56_person.json',
+)
+
+train_pipeline = [
+    dict(type='LoadImageFromFile'),
+    dict(type='TopDownGetBboxCenterScale', padding=1.25),
+    dict(type='TopDownRandomShiftBboxCenter', shift_factor=0.16, prob=0.3),
+    dict(type='TopDownRandomFlip', flip_prob=0.5),
+    dict(
+        type='TopDownHalfBodyTransform',
+        num_joints_half_body=8,
+        prob_half_body=0.3),
+    dict(
+        type='TopDownGetRandomScaleRotation', rot_factor=40, scale_factor=0.5),
+    dict(type='TopDownAffine'),
+    dict(type='ToTensor'),
+    dict(
+        type='NormalizeTensor',
+        mean=[0.485, 0.456, 0.406],
+        std=[0.229, 0.224, 0.225]),
+    dict(type='TopDownGenerateTarget', sigma=2),
+    dict(
+        type='Collect',
+        keys=['img', 'target', 'target_weight'],
+        meta_keys=[
+            'image_file', 'joints_3d', 'joints_3d_visible', 'center', 'scale',
+            'rotation', 'bbox_score', 'flip_pairs'
+        ]),
+]
+
+val_pipeline = [
+    dict(type='LoadImageFromFile'),
+    dict(type='TopDownGetBboxCenterScale', padding=1.25),
+    dict(type='TopDownAffine'),
+    dict(type='ToTensor'),
+    dict(
+        type='NormalizeTensor',
+        mean=[0.485, 0.456, 0.406],
+        std=[0.229, 0.224, 0.225]),
+    dict(
+        type='Collect',
+        keys=['img'],
+        meta_keys=[
+            'image_file', 'center', 'scale', 'rotation', 'bbox_score',
+            'flip_pairs'
+        ]),
+]
+
+test_pipeline = val_pipeline
+
+data_root = 'data/coco'
+data = dict(
+    samples_per_gpu=32,
+    workers_per_gpu=2,
+    val_dataloader=dict(samples_per_gpu=32),
+    test_dataloader=dict(samples_per_gpu=32),
+    train=dict(
+        type='TopDownCocoDataset',
+        ann_file=f'{data_root}/annotations/person_keypoints_train2017.json',
+        img_prefix=f'{data_root}/train2017/',
+        data_cfg=data_cfg,
+        pipeline=train_pipeline,
+        dataset_info={{_base_.dataset_info}}),
+    val=dict(
+        type='TopDownCocoDataset',
+        ann_file=f'{data_root}/annotations/person_keypoints_val2017.json',
+        img_prefix=f'{data_root}/val2017/',
+        data_cfg=data_cfg,
+        pipeline=val_pipeline,
+        dataset_info={{_base_.dataset_info}}),
+    test=dict(
+        type='TopDownCocoDataset',
+        ann_file=f'{data_root}/annotations/person_keypoints_val2017.json',
+        img_prefix=f'{data_root}/val2017/',
+        data_cfg=data_cfg,
+        pipeline=test_pipeline,
+        dataset_info={{_base_.dataset_info}}),
+)

annotator/lama/__init__.py

@@ -0,0 +1,58 @@
+# https://github.com/advimman/lama
+
+import yaml
+import torch
+from omegaconf import OmegaConf
+import numpy as np
+
+from einops import rearrange
+import os
+from modules import devices
+from annotator.annotator_path import models_path
+from annotator.lama.saicinpainting.training.trainers import load_checkpoint
+
+
+class LamaInpainting:
+    model_dir = os.path.join(models_path, "lama")
+
+    def __init__(self):
+        self.model = None
+        self.device = devices.get_device_for("controlnet")
+
+    def load_model(self):
+        remote_model_path = "https://huggingface.co/lllyasviel/Annotators/resolve/main/ControlNetLama.pth"
+        modelpath = os.path.join(self.model_dir, "ControlNetLama.pth")
+        if not os.path.exists(modelpath):
+            from basicsr.utils.download_util import load_file_from_url
+            load_file_from_url(remote_model_path, model_dir=self.model_dir)
+        config_path = os.path.join(os.path.dirname(os.path.abspath(__file__)), 'config.yaml')
+        cfg = yaml.safe_load(open(config_path, 'rt'))
+        cfg = OmegaConf.create(cfg)
+        cfg.training_model.predict_only = True
+        cfg.visualizer.kind = 'noop'
+        self.model = load_checkpoint(cfg, os.path.abspath(modelpath), strict=False, map_location='cpu')
+        self.model = self.model.to(self.device)
+        self.model.eval()
+
+    def unload_model(self):
+        if self.model is not None:
+            self.model.cpu()
+
+    def __call__(self, input_image):
+        if self.model is None:
+            self.load_model()
+        self.model.to(self.device)
+        color = np.ascontiguousarray(input_image[:, :, 0:3]).astype(np.float32) / 255.0
+        mask = np.ascontiguousarray(input_image[:, :, 3:4]).astype(np.float32) / 255.0
+        with torch.no_grad():
+            color = torch.from_numpy(color).float().to(self.device)
+            mask = torch.from_numpy(mask).float().to(self.device)
+            mask = (mask > 0.5).float()
+            color = color * (1 - mask)
+            image_feed = torch.cat([color, mask], dim=2)
+            image_feed = rearrange(image_feed, 'h w c -> 1 c h w')
+            result = self.model(image_feed)[0]
+            result = rearrange(result, 'c h w -> h w c')
+            result = result * mask + color * (1 - mask)
+            result *= 255.0
+            return result.detach().cpu().numpy().clip(0, 255).astype(np.uint8)

annotator/lama/config.yaml

@@ -0,0 +1,157 @@
+run_title: b18_ffc075_batch8x15
+training_model:
+  kind: default
+  visualize_each_iters: 1000
+  concat_mask: true
+  store_discr_outputs_for_vis: true
+losses:
+  l1:
+    weight_missing: 0
+    weight_known: 10
+  perceptual:
+    weight: 0
+  adversarial:
+    kind: r1
+    weight: 10
+    gp_coef: 0.001
+    mask_as_fake_target: true
+    allow_scale_mask: true
+  feature_matching:
+    weight: 100
+  resnet_pl:
+    weight: 30
+    weights_path: ${env:TORCH_HOME}
+
+optimizers:
+  generator:
+    kind: adam
+    lr: 0.001
+  discriminator:
+    kind: adam
+    lr: 0.0001
+visualizer:
+  key_order:
+  - image
+  - predicted_image
+  - discr_output_fake
+  - discr_output_real
+  - inpainted
+  rescale_keys:
+  - discr_output_fake
+  - discr_output_real
+  kind: directory
+  outdir: /group-volume/User-Driven-Content-Generation/r.suvorov/inpainting/experiments/r.suvorov_2021-04-30_14-41-12_train_simple_pix2pix2_gap_sdpl_novgg_large_b18_ffc075_batch8x15/samples
+location:
+  data_root_dir: /group-volume/User-Driven-Content-Generation/datasets/inpainting_data_root_large
+  out_root_dir: /group-volume/User-Driven-Content-Generation/${env:USER}/inpainting/experiments
+  tb_dir: /group-volume/User-Driven-Content-Generation/${env:USER}/inpainting/tb_logs
+data:
+  batch_size: 15
+  val_batch_size: 2
+  num_workers: 3
+  train:
+    indir: ${location.data_root_dir}/train
+    out_size: 256
+    mask_gen_kwargs:
+      irregular_proba: 1
+      irregular_kwargs:
+        max_angle: 4
+        max_len: 200
+        max_width: 100
+        max_times: 5
+        min_times: 1
+      box_proba: 1
+      box_kwargs:
+        margin: 10
+        bbox_min_size: 30
+        bbox_max_size: 150
+        max_times: 3
+        min_times: 1
+      segm_proba: 0
+      segm_kwargs:
+        confidence_threshold: 0.5
+        max_object_area: 0.5
+        min_mask_area: 0.07
+        downsample_levels: 6
+        num_variants_per_mask: 1
+        rigidness_mode: 1
+        max_foreground_coverage: 0.3
+        max_foreground_intersection: 0.7
+        max_mask_intersection: 0.1
+        max_hidden_area: 0.1
+        max_scale_change: 0.25
+        horizontal_flip: true
+        max_vertical_shift: 0.2
+        position_shuffle: true
+    transform_variant: distortions
+    dataloader_kwargs:
+      batch_size: ${data.batch_size}
+      shuffle: true
+      num_workers: ${data.num_workers}
+  val:
+    indir: ${location.data_root_dir}/val
+    img_suffix: .png
+    dataloader_kwargs:
+      batch_size: ${data.val_batch_size}
+      shuffle: false
+      num_workers: ${data.num_workers}
+  visual_test:
+    indir: ${location.data_root_dir}/korean_test
+    img_suffix: _input.png
+    pad_out_to_modulo: 32
+    dataloader_kwargs:
+      batch_size: 1
+      shuffle: false
+      num_workers: ${data.num_workers}
+generator:
+  kind: ffc_resnet
+  input_nc: 4
+  output_nc: 3
+  ngf: 64
+  n_downsampling: 3
+  n_blocks: 18
+  add_out_act: sigmoid
+  init_conv_kwargs:
+    ratio_gin: 0
+    ratio_gout: 0
+    enable_lfu: false
+  downsample_conv_kwargs:
+    ratio_gin: ${generator.init_conv_kwargs.ratio_gout}
+    ratio_gout: ${generator.downsample_conv_kwargs.ratio_gin}
+    enable_lfu: false
+  resnet_conv_kwargs:
+    ratio_gin: 0.75
+    ratio_gout: ${generator.resnet_conv_kwargs.ratio_gin}
+    enable_lfu: false
+discriminator:
+  kind: pix2pixhd_nlayer
+  input_nc: 3
+  ndf: 64
+  n_layers: 4
+evaluator:
+  kind: default
+  inpainted_key: inpainted
+  integral_kind: ssim_fid100_f1
+trainer:
+  kwargs:
+    gpus: -1
+    accelerator: ddp
+    max_epochs: 200
+    gradient_clip_val: 1
+    log_gpu_memory: None
+    limit_train_batches: 25000
+    val_check_interval: ${trainer.kwargs.limit_train_batches}
+    log_every_n_steps: 1000
+    precision: 32
+    terminate_on_nan: false
+    check_val_every_n_epoch: 1
+    num_sanity_val_steps: 8
+    limit_val_batches: 1000
+    replace_sampler_ddp: false
+  checkpoint_kwargs:
+    verbose: true
+    save_top_k: 5
+    save_last: true
+    period: 1
+    monitor: val_ssim_fid100_f1_total_mean
+    mode: max

annotator/lama/saicinpainting/training/data/masks.py

@@ -0,0 +1,332 @@
+import math
+import random
+import hashlib
+import logging
+from enum import Enum
+
+import cv2
+import numpy as np
+
+# from annotator.lama.saicinpainting.evaluation.masks.mask import SegmentationMask
+from annotator.lama.saicinpainting.utils import LinearRamp
+
+LOGGER = logging.getLogger(__name__)
+
+
+class DrawMethod(Enum):
+    LINE = 'line'
+    CIRCLE = 'circle'
+    SQUARE = 'square'
+
+
+def make_random_irregular_mask(shape, max_angle=4, max_len=60, max_width=20, min_times=0, max_times=10,
+                               draw_method=DrawMethod.LINE):
+    draw_method = DrawMethod(draw_method)
+
+    height, width = shape
+    mask = np.zeros((height, width), np.float32)
+    times = np.random.randint(min_times, max_times + 1)
+    for i in range(times):
+        start_x = np.random.randint(width)
+        start_y = np.random.randint(height)
+        for j in range(1 + np.random.randint(5)):
+            angle = 0.01 + np.random.randint(max_angle)
+            if i % 2 == 0:
+                angle = 2 * 3.1415926 - angle
+            length = 10 + np.random.randint(max_len)
+            brush_w = 5 + np.random.randint(max_width)
+            end_x = np.clip((start_x + length * np.sin(angle)).astype(np.int32), 0, width)
+            end_y = np.clip((start_y + length * np.cos(angle)).astype(np.int32), 0, height)
+            if draw_method == DrawMethod.LINE:
+                cv2.line(mask, (start_x, start_y), (end_x, end_y), 1.0, brush_w)
+            elif draw_method == DrawMethod.CIRCLE:
+                cv2.circle(mask, (start_x, start_y), radius=brush_w, color=1., thickness=-1)
+            elif draw_method == DrawMethod.SQUARE:
+                radius = brush_w // 2
+                mask[start_y - radius:start_y + radius, start_x - radius:start_x + radius] = 1
+            start_x, start_y = end_x, end_y
+    return mask[None, ...]
+
+
+class RandomIrregularMaskGenerator:
+    def __init__(self, max_angle=4, max_len=60, max_width=20, min_times=0, max_times=10, ramp_kwargs=None,
+                 draw_method=DrawMethod.LINE):
+        self.max_angle = max_angle
+        self.max_len = max_len
+        self.max_width = max_width
+        self.min_times = min_times
+        self.max_times = max_times
+        self.draw_method = draw_method
+        self.ramp = LinearRamp(**ramp_kwargs) if ramp_kwargs is not None else None
+
+    def __call__(self, img, iter_i=None, raw_image=None):
+        coef = self.ramp(iter_i) if (self.ramp is not None) and (iter_i is not None) else 1
+        cur_max_len = int(max(1, self.max_len * coef))
+        cur_max_width = int(max(1, self.max_width * coef))
+        cur_max_times = int(self.min_times + 1 + (self.max_times - self.min_times) * coef)
+        return make_random_irregular_mask(img.shape[1:], max_angle=self.max_angle, max_len=cur_max_len,
+                                          max_width=cur_max_width, min_times=self.min_times, max_times=cur_max_times,
+                                          draw_method=self.draw_method)
+
+
+def make_random_rectangle_mask(shape, margin=10, bbox_min_size=30, bbox_max_size=100, min_times=0, max_times=3):
+    height, width = shape
+    mask = np.zeros((height, width), np.float32)
+    bbox_max_size = min(bbox_max_size, height - margin * 2, width - margin * 2)
+    times = np.random.randint(min_times, max_times + 1)
+    for i in range(times):
+        box_width = np.random.randint(bbox_min_size, bbox_max_size)
+        box_height = np.random.randint(bbox_min_size, bbox_max_size)
+        start_x = np.random.randint(margin, width - margin - box_width + 1)
+        start_y = np.random.randint(margin, height - margin - box_height + 1)
+        mask[start_y:start_y + box_height, start_x:start_x + box_width] = 1
+    return mask[None, ...]
+
+
+class RandomRectangleMaskGenerator:
+    def __init__(self, margin=10, bbox_min_size=30, bbox_max_size=100, min_times=0, max_times=3, ramp_kwargs=None):
+        self.margin = margin
+        self.bbox_min_size = bbox_min_size
+        self.bbox_max_size = bbox_max_size
+        self.min_times = min_times
+        self.max_times = max_times
+        self.ramp = LinearRamp(**ramp_kwargs) if ramp_kwargs is not None else None
+
+    def __call__(self, img, iter_i=None, raw_image=None):
+        coef = self.ramp(iter_i) if (self.ramp is not None) and (iter_i is not None) else 1
+        cur_bbox_max_size = int(self.bbox_min_size + 1 + (self.bbox_max_size - self.bbox_min_size) * coef)
+        cur_max_times = int(self.min_times + (self.max_times - self.min_times) * coef)
+        return make_random_rectangle_mask(img.shape[1:], margin=self.margin, bbox_min_size=self.bbox_min_size,
+                                          bbox_max_size=cur_bbox_max_size, min_times=self.min_times,
+                                          max_times=cur_max_times)
+
+
+class RandomSegmentationMaskGenerator:
+    def __init__(self, **kwargs):
+        self.impl = None  # will be instantiated in first call (effectively in subprocess)
+        self.kwargs = kwargs
+
+    def __call__(self, img, iter_i=None, raw_image=None):
+        if self.impl is None:
+            self.impl = SegmentationMask(**self.kwargs)
+
+        masks = self.impl.get_masks(np.transpose(img, (1, 2, 0)))
+        masks = [m for m in masks if len(np.unique(m)) > 1]
+        return np.random.choice(masks)
+
+
+def make_random_superres_mask(shape, min_step=2, max_step=4, min_width=1, max_width=3):
+    height, width = shape
+    mask = np.zeros((height, width), np.float32)
+    step_x = np.random.randint(min_step, max_step + 1)
+    width_x = np.random.randint(min_width, min(step_x, max_width + 1))
+    offset_x = np.random.randint(0, step_x)
+
+    step_y = np.random.randint(min_step, max_step + 1)
+    width_y = np.random.randint(min_width, min(step_y, max_width + 1))
+    offset_y = np.random.randint(0, step_y)
+
+    for dy in range(width_y):
+        mask[offset_y + dy::step_y] = 1
+    for dx in range(width_x):
+        mask[:, offset_x + dx::step_x] = 1
+    return mask[None, ...]
+
+
+class RandomSuperresMaskGenerator:
+    def __init__(self, **kwargs):
+        self.kwargs = kwargs
+
+    def __call__(self, img, iter_i=None):
+        return make_random_superres_mask(img.shape[1:], **self.kwargs)
+
+
+class DumbAreaMaskGenerator:
+    min_ratio = 0.1
+    max_ratio = 0.35
+    default_ratio = 0.225
+
+    def __init__(self, is_training):
+        #Parameters:
+        #    is_training(bool): If true - random rectangular mask, if false - central square mask
+        self.is_training = is_training
+
+    def _random_vector(self, dimension):
+        if self.is_training:
+            lower_limit = math.sqrt(self.min_ratio)
+            upper_limit = math.sqrt(self.max_ratio)
+            mask_side = round((random.random() * (upper_limit - lower_limit) + lower_limit) * dimension)
+            u = random.randint(0, dimension-mask_side-1)
+            v = u+mask_side 
+        else:
+            margin = (math.sqrt(self.default_ratio) / 2) * dimension
+            u = round(dimension/2 - margin)
+            v = round(dimension/2 + margin)
+        return u, v
+
+    def __call__(self, img, iter_i=None, raw_image=None):
+        c, height, width = img.shape
+        mask = np.zeros((height, width), np.float32)
+        x1, x2 = self._random_vector(width)
+        y1, y2 = self._random_vector(height)
+        mask[x1:x2, y1:y2] = 1
+        return mask[None, ...]
+
+
+class OutpaintingMaskGenerator:
+    def __init__(self, min_padding_percent:float=0.04, max_padding_percent:int=0.25, left_padding_prob:float=0.5, top_padding_prob:float=0.5, 
+                 right_padding_prob:float=0.5, bottom_padding_prob:float=0.5, is_fixed_randomness:bool=False):
+        """
+        is_fixed_randomness - get identical paddings for the same image if args are the same
+        """
+        self.min_padding_percent = min_padding_percent
+        self.max_padding_percent = max_padding_percent
+        self.probs = [left_padding_prob, top_padding_prob, right_padding_prob, bottom_padding_prob]
+        self.is_fixed_randomness = is_fixed_randomness
+
+        assert self.min_padding_percent <= self.max_padding_percent
+        assert self.max_padding_percent > 0
+        assert len([x for x in [self.min_padding_percent, self.max_padding_percent] if (x>=0 and x<=1)]) == 2, f"Padding percentage should be in [0,1]"
+        assert sum(self.probs) > 0, f"At least one of the padding probs should be greater than 0 - {self.probs}"
+        assert len([x for x in self.probs if (x >= 0) and (x <= 1)]) == 4, f"At least one of padding probs is not in [0,1] - {self.probs}"
+        if len([x for x in self.probs if x > 0]) == 1:
+            LOGGER.warning(f"Only one padding prob is greater than zero - {self.probs}. That means that the outpainting masks will be always on the same side")
+
+    def apply_padding(self, mask, coord):
+        mask[int(coord[0][0]*self.img_h):int(coord[1][0]*self.img_h),   
+             int(coord[0][1]*self.img_w):int(coord[1][1]*self.img_w)] = 1
+        return mask
+
+    def get_padding(self, size):
+        n1 = int(self.min_padding_percent*size)
+        n2 = int(self.max_padding_percent*size)
+        return self.rnd.randint(n1, n2) / size
+
+    @staticmethod
+    def _img2rs(img):
+        arr = np.ascontiguousarray(img.astype(np.uint8))
+        str_hash = hashlib.sha1(arr).hexdigest()
+        res = hash(str_hash)%(2**32)
+        return res
+
+    def __call__(self, img, iter_i=None, raw_image=None):
+        c, self.img_h, self.img_w = img.shape
+        mask = np.zeros((self.img_h, self.img_w), np.float32)
+        at_least_one_mask_applied = False
+
+        if self.is_fixed_randomness:
+            assert raw_image is not None, f"Cant calculate hash on raw_image=None"
+            rs = self._img2rs(raw_image)
+            self.rnd = np.random.RandomState(rs)
+        else:
+            self.rnd = np.random
+
+        coords = [[
+                   (0,0), 
+                   (1,self.get_padding(size=self.img_h))
+                  ],
+                  [
+                    (0,0),
+                    (self.get_padding(size=self.img_w),1)
+                  ],
+                  [
+                    (0,1-self.get_padding(size=self.img_h)),
+                    (1,1)
+                  ],    
+                  [
+                    (1-self.get_padding(size=self.img_w),0),
+                    (1,1)
+                  ]]
+
+        for pp, coord in zip(self.probs, coords):
+            if self.rnd.random() < pp:
+                at_least_one_mask_applied = True
+                mask = self.apply_padding(mask=mask, coord=coord)
+
+        if not at_least_one_mask_applied:
+            idx = self.rnd.choice(range(len(coords)), p=np.array(self.probs)/sum(self.probs))
+            mask = self.apply_padding(mask=mask, coord=coords[idx])
+        return mask[None, ...]
+
+
+class MixedMaskGenerator:
+    def __init__(self, irregular_proba=1/3, irregular_kwargs=None,
+                 box_proba=1/3, box_kwargs=None,
+                 segm_proba=1/3, segm_kwargs=None,
+                 squares_proba=0, squares_kwargs=None,
+                 superres_proba=0, superres_kwargs=None,
+                 outpainting_proba=0, outpainting_kwargs=None,
+                 invert_proba=0):
+        self.probas = []
+        self.gens = []
+
+        if irregular_proba > 0:
+            self.probas.append(irregular_proba)
+            if irregular_kwargs is None:
+                irregular_kwargs = {}
+            else:
+                irregular_kwargs = dict(irregular_kwargs)
+            irregular_kwargs['draw_method'] = DrawMethod.LINE
+            self.gens.append(RandomIrregularMaskGenerator(**irregular_kwargs))
+
+        if box_proba > 0:
+            self.probas.append(box_proba)
+            if box_kwargs is None:
+                box_kwargs = {}
+            self.gens.append(RandomRectangleMaskGenerator(**box_kwargs))
+
+        if segm_proba > 0:
+            self.probas.append(segm_proba)
+            if segm_kwargs is None:
+                segm_kwargs = {}
+            self.gens.append(RandomSegmentationMaskGenerator(**segm_kwargs))
+
+        if squares_proba > 0:
+            self.probas.append(squares_proba)
+            if squares_kwargs is None:
+                squares_kwargs = {}
+            else:
+                squares_kwargs = dict(squares_kwargs)
+            squares_kwargs['draw_method'] = DrawMethod.SQUARE
+            self.gens.append(RandomIrregularMaskGenerator(**squares_kwargs))
+
+        if superres_proba > 0:
+            self.probas.append(superres_proba)
+            if superres_kwargs is None:
+                superres_kwargs = {}
+            self.gens.append(RandomSuperresMaskGenerator(**superres_kwargs))
+
+        if outpainting_proba > 0:
+            self.probas.append(outpainting_proba)
+            if outpainting_kwargs is None:
+                outpainting_kwargs = {}
+            self.gens.append(OutpaintingMaskGenerator(**outpainting_kwargs))
+
+        self.probas = np.array(self.probas, dtype='float32')
+        self.probas /= self.probas.sum()
+        self.invert_proba = invert_proba
+
+    def __call__(self, img, iter_i=None, raw_image=None):
+        kind = np.random.choice(len(self.probas), p=self.probas)
+        gen = self.gens[kind]
+        result = gen(img, iter_i=iter_i, raw_image=raw_image)
+        if self.invert_proba > 0 and random.random() < self.invert_proba:
+            result = 1 - result
+        return result
+
+
+def get_mask_generator(kind, kwargs):
+    if kind is None:
+        kind = "mixed"
+    if kwargs is None:
+        kwargs = {}
+
+    if kind == "mixed":
+        cl = MixedMaskGenerator
+    elif kind == "outpainting":
+        cl = OutpaintingMaskGenerator
+    elif kind == "dumb":
+        cl = DumbAreaMaskGenerator
+    else:
+        raise NotImplementedError(f"No such generator kind = {kind}")
+    return cl(**kwargs)

annotator/lama/saicinpainting/training/losses/adversarial.py

@@ -0,0 +1,177 @@
+from typing import Tuple, Dict, Optional
+
+import torch
+import torch.nn as nn
+import torch.nn.functional as F
+
+
+class BaseAdversarialLoss:
+    def pre_generator_step(self, real_batch: torch.Tensor, fake_batch: torch.Tensor,
+                           generator: nn.Module, discriminator: nn.Module):
+        """
+        Prepare for generator step
+        :param real_batch: Tensor, a batch of real samples
+        :param fake_batch: Tensor, a batch of samples produced by generator
+        :param generator:
+        :param discriminator:
+        :return: None
+        """
+
+    def pre_discriminator_step(self, real_batch: torch.Tensor, fake_batch: torch.Tensor,
+                               generator: nn.Module, discriminator: nn.Module):
+        """
+        Prepare for discriminator step
+        :param real_batch: Tensor, a batch of real samples
+        :param fake_batch: Tensor, a batch of samples produced by generator
+        :param generator:
+        :param discriminator:
+        :return: None
+        """
+
+    def generator_loss(self, real_batch: torch.Tensor, fake_batch: torch.Tensor,
+                       discr_real_pred: torch.Tensor, discr_fake_pred: torch.Tensor,
+                       mask: Optional[torch.Tensor] = None) \
+            -> Tuple[torch.Tensor, Dict[str, torch.Tensor]]:
+        """
+        Calculate generator loss
+        :param real_batch: Tensor, a batch of real samples
+        :param fake_batch: Tensor, a batch of samples produced by generator
+        :param discr_real_pred: Tensor, discriminator output for real_batch
+        :param discr_fake_pred: Tensor, discriminator output for fake_batch
+        :param mask: Tensor, actual mask, which was at input of generator when making fake_batch
+        :return: total generator loss along with some values that might be interesting to log
+        """
+        raise NotImplemented()
+
+    def discriminator_loss(self, real_batch: torch.Tensor, fake_batch: torch.Tensor,
+                           discr_real_pred: torch.Tensor, discr_fake_pred: torch.Tensor,
+                           mask: Optional[torch.Tensor] = None) \
+            -> Tuple[torch.Tensor, Dict[str, torch.Tensor]]:
+        """
+        Calculate discriminator loss and call .backward() on it
+        :param real_batch: Tensor, a batch of real samples
+        :param fake_batch: Tensor, a batch of samples produced by generator
+        :param discr_real_pred: Tensor, discriminator output for real_batch
+        :param discr_fake_pred: Tensor, discriminator output for fake_batch
+        :param mask: Tensor, actual mask, which was at input of generator when making fake_batch
+        :return: total discriminator loss along with some values that might be interesting to log
+        """
+        raise NotImplemented()
+
+    def interpolate_mask(self, mask, shape):
+        assert mask is not None
+        assert self.allow_scale_mask or shape == mask.shape[-2:]
+        if shape != mask.shape[-2:] and self.allow_scale_mask:
+            if self.mask_scale_mode == 'maxpool':
+                mask = F.adaptive_max_pool2d(mask, shape)
+            else:
+                mask = F.interpolate(mask, size=shape, mode=self.mask_scale_mode)
+        return mask
+
+def make_r1_gp(discr_real_pred, real_batch):
+    if torch.is_grad_enabled():
+        grad_real = torch.autograd.grad(outputs=discr_real_pred.sum(), inputs=real_batch, create_graph=True)[0]
+        grad_penalty = (grad_real.view(grad_real.shape[0], -1).norm(2, dim=1) ** 2).mean()
+    else:
+        grad_penalty = 0
+    real_batch.requires_grad = False
+
+    return grad_penalty
+
+class NonSaturatingWithR1(BaseAdversarialLoss):
+    def __init__(self, gp_coef=5, weight=1, mask_as_fake_target=False, allow_scale_mask=False,
+                 mask_scale_mode='nearest', extra_mask_weight_for_gen=0,
+                 use_unmasked_for_gen=True, use_unmasked_for_discr=True):
+        self.gp_coef = gp_coef
+        self.weight = weight
+        # use for discr => use for gen;
+        # otherwise we teach only the discr to pay attention to very small difference
+        assert use_unmasked_for_gen or (not use_unmasked_for_discr)
+        # mask as target => use unmasked for discr:
+        # if we don't care about unmasked regions at all
+        # then it doesn't matter if the value of mask_as_fake_target is true or false
+        assert use_unmasked_for_discr or (not mask_as_fake_target)
+        self.use_unmasked_for_gen = use_unmasked_for_gen
+        self.use_unmasked_for_discr = use_unmasked_for_discr
+        self.mask_as_fake_target = mask_as_fake_target
+        self.allow_scale_mask = allow_scale_mask
+        self.mask_scale_mode = mask_scale_mode
+        self.extra_mask_weight_for_gen = extra_mask_weight_for_gen
+
+    def generator_loss(self, real_batch: torch.Tensor, fake_batch: torch.Tensor,
+                       discr_real_pred: torch.Tensor, discr_fake_pred: torch.Tensor,
+                       mask=None) \
+            -> Tuple[torch.Tensor, Dict[str, torch.Tensor]]:
+        fake_loss = F.softplus(-discr_fake_pred)
+        if (self.mask_as_fake_target and self.extra_mask_weight_for_gen > 0) or \
+                not self.use_unmasked_for_gen:  # == if masked region should be treated differently
+            mask = self.interpolate_mask(mask, discr_fake_pred.shape[-2:])
+            if not self.use_unmasked_for_gen:
+                fake_loss = fake_loss * mask
+            else:
+                pixel_weights = 1 + mask * self.extra_mask_weight_for_gen
+                fake_loss = fake_loss * pixel_weights
+
+        return fake_loss.mean() * self.weight, dict()
+
+    def pre_discriminator_step(self, real_batch: torch.Tensor, fake_batch: torch.Tensor,
+                               generator: nn.Module, discriminator: nn.Module):
+        real_batch.requires_grad = True
+
+    def discriminator_loss(self, real_batch: torch.Tensor, fake_batch: torch.Tensor,
+                           discr_real_pred: torch.Tensor, discr_fake_pred: torch.Tensor,
+                           mask=None) \
+            -> Tuple[torch.Tensor, Dict[str, torch.Tensor]]:
+
+        real_loss = F.softplus(-discr_real_pred)
+        grad_penalty = make_r1_gp(discr_real_pred, real_batch) * self.gp_coef
+        fake_loss = F.softplus(discr_fake_pred)
+
+        if not self.use_unmasked_for_discr or self.mask_as_fake_target:
+            # == if masked region should be treated differently
+            mask = self.interpolate_mask(mask, discr_fake_pred.shape[-2:])
+            # use_unmasked_for_discr=False only makes sense for fakes;
+            # for reals there is no difference beetween two regions
+            fake_loss = fake_loss * mask
+            if self.mask_as_fake_target:
+                fake_loss = fake_loss + (1 - mask) * F.softplus(-discr_fake_pred)
+
+        sum_discr_loss = real_loss + grad_penalty + fake_loss
+        metrics = dict(discr_real_out=discr_real_pred.mean(),
+                       discr_fake_out=discr_fake_pred.mean(),
+                       discr_real_gp=grad_penalty)
+        return sum_discr_loss.mean(), metrics
+
+class BCELoss(BaseAdversarialLoss):
+    def __init__(self, weight):
+        self.weight = weight
+        self.bce_loss = nn.BCEWithLogitsLoss()
+
+    def generator_loss(self, discr_fake_pred: torch.Tensor) -> Tuple[torch.Tensor, Dict[str, torch.Tensor]]:
+        real_mask_gt = torch.zeros(discr_fake_pred.shape).to(discr_fake_pred.device)
+        fake_loss = self.bce_loss(discr_fake_pred, real_mask_gt) * self.weight
+        return fake_loss, dict()
+
+    def pre_discriminator_step(self, real_batch: torch.Tensor, fake_batch: torch.Tensor,
+                               generator: nn.Module, discriminator: nn.Module):
+        real_batch.requires_grad = True
+
+    def discriminator_loss(self,
+                           mask: torch.Tensor,
+                           discr_real_pred: torch.Tensor,
+                           discr_fake_pred: torch.Tensor) -> Tuple[torch.Tensor, Dict[str, torch.Tensor]]:
+
+        real_mask_gt = torch.zeros(discr_real_pred.shape).to(discr_real_pred.device)
+        sum_discr_loss = (self.bce_loss(discr_real_pred, real_mask_gt) +  self.bce_loss(discr_fake_pred, mask)) / 2
+        metrics = dict(discr_real_out=discr_real_pred.mean(),
+                       discr_fake_out=discr_fake_pred.mean(),
+                       discr_real_gp=0)
+        return sum_discr_loss, metrics
+
+
+def make_discrim_loss(kind, **kwargs):
+    if kind == 'r1':
+        return NonSaturatingWithR1(**kwargs)
+    elif kind == 'bce':
+        return BCELoss(**kwargs)
+    raise ValueError(f'Unknown adversarial loss kind {kind}')

annotator/lama/saicinpainting/training/losses/constants.py

@@ -0,0 +1,152 @@
+weights = {"ade20k": 
+    [6.34517766497462,
+    9.328358208955224,
+    11.389521640091116,
+    16.10305958132045,
+    20.833333333333332,
+    22.22222222222222,
+    25.125628140703515,
+    43.29004329004329,
+    50.5050505050505,
+    54.6448087431694,
+    55.24861878453038,
+    60.24096385542168,
+    62.5,
+    66.2251655629139,
+    84.74576271186442,
+    90.90909090909092,
+    91.74311926605505,
+    96.15384615384616,
+    96.15384615384616,
+    97.08737864077669,
+    102.04081632653062,
+    135.13513513513513,
+    149.2537313432836,
+    153.84615384615384,
+    163.93442622950818,
+    166.66666666666666,
+    188.67924528301887,
+    192.30769230769232,
+    217.3913043478261,
+    227.27272727272725,
+    227.27272727272725,
+    227.27272727272725,
+    303.03030303030306,
+    322.5806451612903,
+    333.3333333333333,
+    370.3703703703703,
+    384.61538461538464,
+    416.6666666666667,
+    416.6666666666667,
+    434.7826086956522,
+    434.7826086956522,
+    454.5454545454545,
+    454.5454545454545,
+    500.0,
+    526.3157894736842,
+    526.3157894736842,
+    555.5555555555555,
+    555.5555555555555,
+    555.5555555555555,
+    555.5555555555555,
+    555.5555555555555,
+    555.5555555555555,
+    555.5555555555555,
+    588.2352941176471,
+    588.2352941176471,
+    588.2352941176471,
+    588.2352941176471,
+    588.2352941176471,
+    666.6666666666666,
+    666.6666666666666,
+    666.6666666666666,
+    666.6666666666666,
+    714.2857142857143,
+    714.2857142857143,
+    714.2857142857143,
+    714.2857142857143,
+    714.2857142857143,
+    769.2307692307693,
+    769.2307692307693,
+    769.2307692307693,
+    833.3333333333334,
+    833.3333333333334,
+    833.3333333333334,
+    833.3333333333334,
+    909.090909090909,
+    1000.0,
+    1111.111111111111,
+    1111.111111111111,
+    1111.111111111111,
+    1111.111111111111,
+    1111.111111111111,
+    1250.0,
+    1250.0,
+    1250.0,
+    1250.0,
+    1250.0,
+    1428.5714285714287,
+    1428.5714285714287,
+    1428.5714285714287,
+    1428.5714285714287,
+    1428.5714285714287,
+    1428.5714285714287,
+    1428.5714285714287,
+    1666.6666666666667,
+    1666.6666666666667,
+    1666.6666666666667,
+    1666.6666666666667,
+    1666.6666666666667,
+    1666.6666666666667,
+    1666.6666666666667,
+    1666.6666666666667,
+    1666.6666666666667,
+    1666.6666666666667,
+    1666.6666666666667,
+    2000.0,
+    2000.0,
+    2000.0,
+    2000.0,
+    2000.0,
+    2000.0,
+    2000.0,
+    2000.0,
+    2000.0,
+    2000.0,
+    2000.0,
+    2000.0,
+    2000.0,
+    2000.0,
+    2000.0,
+    2000.0,
+    2000.0,
+    2500.0,
+    2500.0,
+    2500.0,
+    2500.0,
+    2500.0,
+    2500.0,
+    2500.0,
+    2500.0,
+    2500.0,
+    2500.0,
+    2500.0,
+    2500.0,
+    2500.0,
+    3333.3333333333335,
+    3333.3333333333335,
+    3333.3333333333335,
+    3333.3333333333335,
+    3333.3333333333335,
+    3333.3333333333335,
+    3333.3333333333335,
+    3333.3333333333335,
+    3333.3333333333335,
+    3333.3333333333335,
+    3333.3333333333335,
+    3333.3333333333335,
+    3333.3333333333335,
+    5000.0,
+    5000.0,
+    5000.0]
+}

annotator/lama/saicinpainting/training/losses/distance_weighting.py

@@ -0,0 +1,126 @@
+import torch
+import torch.nn as nn
+import torch.nn.functional as F
+import torchvision
+
+from annotator.lama.saicinpainting.training.losses.perceptual import IMAGENET_STD, IMAGENET_MEAN
+
+
+def dummy_distance_weighter(real_img, pred_img, mask):
+    return mask
+
+
+def get_gauss_kernel(kernel_size, width_factor=1):
+    coords = torch.stack(torch.meshgrid(torch.arange(kernel_size),
+                                        torch.arange(kernel_size)),
+                         dim=0).float()
+    diff = torch.exp(-((coords - kernel_size // 2) ** 2).sum(0) / kernel_size / width_factor)
+    diff /= diff.sum()
+    return diff
+
+
+class BlurMask(nn.Module):
+    def __init__(self, kernel_size=5, width_factor=1):
+        super().__init__()
+        self.filter = nn.Conv2d(1, 1, kernel_size, padding=kernel_size // 2, padding_mode='replicate', bias=False)
+        self.filter.weight.data.copy_(get_gauss_kernel(kernel_size, width_factor=width_factor))
+
+    def forward(self, real_img, pred_img, mask):
+        with torch.no_grad():
+            result = self.filter(mask) * mask
+            return result
+
+
+class EmulatedEDTMask(nn.Module):
+    def __init__(self, dilate_kernel_size=5, blur_kernel_size=5, width_factor=1):
+        super().__init__()
+        self.dilate_filter = nn.Conv2d(1, 1, dilate_kernel_size, padding=dilate_kernel_size// 2, padding_mode='replicate',
+                                       bias=False)
+        self.dilate_filter.weight.data.copy_(torch.ones(1, 1, dilate_kernel_size, dilate_kernel_size, dtype=torch.float))
+        self.blur_filter = nn.Conv2d(1, 1, blur_kernel_size, padding=blur_kernel_size // 2, padding_mode='replicate', bias=False)
+        self.blur_filter.weight.data.copy_(get_gauss_kernel(blur_kernel_size, width_factor=width_factor))
+
+    def forward(self, real_img, pred_img, mask):
+        with torch.no_grad():
+            known_mask = 1 - mask
+            dilated_known_mask = (self.dilate_filter(known_mask) > 1).float()
+            result = self.blur_filter(1 - dilated_known_mask) * mask
+            return result
+
+
+class PropagatePerceptualSim(nn.Module):
+    def __init__(self, level=2, max_iters=10, temperature=500, erode_mask_size=3):
+        super().__init__()
+        vgg = torchvision.models.vgg19(pretrained=True).features
+        vgg_avg_pooling = []
+
+        for weights in vgg.parameters():
+            weights.requires_grad = False
+
+        cur_level_i = 0
+        for module in vgg.modules():
+            if module.__class__.__name__ == 'Sequential':
+                continue
+            elif module.__class__.__name__ == 'MaxPool2d':
+                vgg_avg_pooling.append(nn.AvgPool2d(kernel_size=2, stride=2, padding=0))
+            else:
+                vgg_avg_pooling.append(module)
+                if module.__class__.__name__ == 'ReLU':
+                    cur_level_i += 1
+                if cur_level_i == level:
+                    break
+
+        self.features = nn.Sequential(*vgg_avg_pooling)
+
+        self.max_iters = max_iters
+        self.temperature = temperature
+        self.do_erode = erode_mask_size > 0
+        if self.do_erode:
+            self.erode_mask = nn.Conv2d(1, 1, erode_mask_size, padding=erode_mask_size // 2, bias=False)
+            self.erode_mask.weight.data.fill_(1)
+
+    def forward(self, real_img, pred_img, mask):
+        with torch.no_grad():
+            real_img = (real_img - IMAGENET_MEAN.to(real_img)) / IMAGENET_STD.to(real_img)
+            real_feats = self.features(real_img)
+
+            vertical_sim = torch.exp(-(real_feats[:, :, 1:] - real_feats[:, :, :-1]).pow(2).sum(1, keepdim=True)
+                                     / self.temperature)
+            horizontal_sim = torch.exp(-(real_feats[:, :, :, 1:] - real_feats[:, :, :, :-1]).pow(2).sum(1, keepdim=True)
+                                       / self.temperature)
+
+            mask_scaled = F.interpolate(mask, size=real_feats.shape[-2:], mode='bilinear', align_corners=False)
+            if self.do_erode:
+                mask_scaled = (self.erode_mask(mask_scaled) > 1).float()
+
+            cur_knowness = 1 - mask_scaled
+
+            for iter_i in range(self.max_iters):
+                new_top_knowness = F.pad(cur_knowness[:, :, :-1] * vertical_sim, (0, 0, 1, 0), mode='replicate')
+                new_bottom_knowness = F.pad(cur_knowness[:, :, 1:] * vertical_sim, (0, 0, 0, 1), mode='replicate')
+
+                new_left_knowness = F.pad(cur_knowness[:, :, :, :-1] * horizontal_sim, (1, 0, 0, 0), mode='replicate')
+                new_right_knowness = F.pad(cur_knowness[:, :, :, 1:] * horizontal_sim, (0, 1, 0, 0), mode='replicate')
+
+                new_knowness = torch.stack([new_top_knowness, new_bottom_knowness,
+                                            new_left_knowness, new_right_knowness],
+                                           dim=0).max(0).values
+
+                cur_knowness = torch.max(cur_knowness, new_knowness)
+
+            cur_knowness = F.interpolate(cur_knowness, size=mask.shape[-2:], mode='bilinear')
+            result = torch.min(mask, 1 - cur_knowness)
+
+            return result
+
+
+def make_mask_distance_weighter(kind='none', **kwargs):
+    if kind == 'none':
+        return dummy_distance_weighter
+    if kind == 'blur':
+        return BlurMask(**kwargs)
+    if kind == 'edt':
+        return EmulatedEDTMask(**kwargs)
+    if kind == 'pps':
+        return PropagatePerceptualSim(**kwargs)
+    raise ValueError(f'Unknown mask distance weighter kind {kind}')

annotator/lama/saicinpainting/training/losses/feature_matching.py

@@ -0,0 +1,33 @@
+from typing import List
+
+import torch
+import torch.nn.functional as F
+
+
+def masked_l2_loss(pred, target, mask, weight_known, weight_missing):
+    per_pixel_l2 = F.mse_loss(pred, target, reduction='none')
+    pixel_weights = mask * weight_missing + (1 - mask) * weight_known
+    return (pixel_weights * per_pixel_l2).mean()
+
+
+def masked_l1_loss(pred, target, mask, weight_known, weight_missing):
+    per_pixel_l1 = F.l1_loss(pred, target, reduction='none')
+    pixel_weights = mask * weight_missing + (1 - mask) * weight_known
+    return (pixel_weights * per_pixel_l1).mean()
+
+
+def feature_matching_loss(fake_features: List[torch.Tensor], target_features: List[torch.Tensor], mask=None):
+    if mask is None:
+        res = torch.stack([F.mse_loss(fake_feat, target_feat)
+                           for fake_feat, target_feat in zip(fake_features, target_features)]).mean()
+    else:
+        res = 0
+        norm = 0
+        for fake_feat, target_feat in zip(fake_features, target_features):
+            cur_mask = F.interpolate(mask, size=fake_feat.shape[-2:], mode='bilinear', align_corners=False)
+            error_weights = 1 - cur_mask
+            cur_val = ((fake_feat - target_feat).pow(2) * error_weights).mean()
+            res = res + cur_val
+            norm += 1
+        res = res / norm
+    return res

annotator/lama/saicinpainting/training/losses/perceptual.py

@@ -0,0 +1,113 @@
+import torch
+import torch.nn as nn
+import torch.nn.functional as F
+import torchvision
+
+# from models.ade20k import ModelBuilder
+from annotator.lama.saicinpainting.utils import check_and_warn_input_range
+
+
+IMAGENET_MEAN = torch.FloatTensor([0.485, 0.456, 0.406])[None, :, None, None]
+IMAGENET_STD = torch.FloatTensor([0.229, 0.224, 0.225])[None, :, None, None]
+
+
+class PerceptualLoss(nn.Module):
+    def __init__(self, normalize_inputs=True):
+        super(PerceptualLoss, self).__init__()
+
+        self.normalize_inputs = normalize_inputs
+        self.mean_ = IMAGENET_MEAN
+        self.std_ = IMAGENET_STD
+
+        vgg = torchvision.models.vgg19(pretrained=True).features
+        vgg_avg_pooling = []
+
+        for weights in vgg.parameters():
+            weights.requires_grad = False
+
+        for module in vgg.modules():
+            if module.__class__.__name__ == 'Sequential':
+                continue
+            elif module.__class__.__name__ == 'MaxPool2d':
+                vgg_avg_pooling.append(nn.AvgPool2d(kernel_size=2, stride=2, padding=0))
+            else:
+                vgg_avg_pooling.append(module)
+
+        self.vgg = nn.Sequential(*vgg_avg_pooling)
+
+    def do_normalize_inputs(self, x):
+        return (x - self.mean_.to(x.device)) / self.std_.to(x.device)
+
+    def partial_losses(self, input, target, mask=None):
+        check_and_warn_input_range(target, 0, 1, 'PerceptualLoss target in partial_losses')
+
+        # we expect input and target to be in [0, 1] range
+        losses = []
+
+        if self.normalize_inputs:
+            features_input = self.do_normalize_inputs(input)
+            features_target = self.do_normalize_inputs(target)
+        else:
+            features_input = input
+            features_target = target
+
+        for layer in self.vgg[:30]:
+
+            features_input = layer(features_input)
+            features_target = layer(features_target)
+
+            if layer.__class__.__name__ == 'ReLU':
+                loss = F.mse_loss(features_input, features_target, reduction='none')
+
+                if mask is not None:
+                    cur_mask = F.interpolate(mask, size=features_input.shape[-2:],
+                                             mode='bilinear', align_corners=False)
+                    loss = loss * (1 - cur_mask)
+
+                loss = loss.mean(dim=tuple(range(1, len(loss.shape))))
+                losses.append(loss)
+
+        return losses
+
+    def forward(self, input, target, mask=None):
+        losses = self.partial_losses(input, target, mask=mask)
+        return torch.stack(losses).sum(dim=0)
+
+    def get_global_features(self, input):
+        check_and_warn_input_range(input, 0, 1, 'PerceptualLoss input in get_global_features')
+
+        if self.normalize_inputs:
+            features_input = self.do_normalize_inputs(input)
+        else:
+            features_input = input
+
+        features_input = self.vgg(features_input)
+        return features_input
+
+
+class ResNetPL(nn.Module):
+    def __init__(self, weight=1,
+                 weights_path=None, arch_encoder='resnet50dilated', segmentation=True):
+        super().__init__()
+        self.impl = ModelBuilder.get_encoder(weights_path=weights_path,
+                                             arch_encoder=arch_encoder,
+                                             arch_decoder='ppm_deepsup',
+                                             fc_dim=2048,
+                                             segmentation=segmentation)
+        self.impl.eval()
+        for w in self.impl.parameters():
+            w.requires_grad_(False)
+
+        self.weight = weight
+
+    def forward(self, pred, target):
+        pred = (pred - IMAGENET_MEAN.to(pred)) / IMAGENET_STD.to(pred)
+        target = (target - IMAGENET_MEAN.to(target)) / IMAGENET_STD.to(target)
+
+        pred_feats = self.impl(pred, return_feature_maps=True)
+        target_feats = self.impl(target, return_feature_maps=True)
+
+        result = torch.stack([F.mse_loss(cur_pred, cur_target)
+                              for cur_pred, cur_target
+                              in zip(pred_feats, target_feats)]).sum() * self.weight
+        return result

annotator/lama/saicinpainting/training/losses/segmentation.py

@@ -0,0 +1,43 @@
+import torch
+import torch.nn as nn
+import torch.nn.functional as F
+
+from .constants import weights as constant_weights
+
+
+class CrossEntropy2d(nn.Module):
+    def __init__(self, reduction="mean", ignore_label=255, weights=None, *args, **kwargs):
+        """
+        weight (Tensor, optional): a manual rescaling weight given to each class.
+            If given, has to be a Tensor of size "nclasses"
+        """
+        super(CrossEntropy2d, self).__init__()
+        self.reduction = reduction
+        self.ignore_label = ignore_label
+        self.weights = weights
+        if self.weights is not None:
+            device = torch.device('cuda' if torch.cuda.is_available() else 'cpu')
+            self.weights = torch.FloatTensor(constant_weights[weights]).to(device)
+
+    def forward(self, predict, target):
+        """
+            Args:
+                predict:(n, c, h, w)
+                target:(n, 1, h, w)
+        """
+        target = target.long()
+        assert not target.requires_grad
+        assert predict.dim() == 4, "{0}".format(predict.size())
+        assert target.dim() == 4, "{0}".format(target.size())
+        assert predict.size(0) == target.size(0), "{0} vs {1} ".format(predict.size(0), target.size(0))
+        assert target.size(1) == 1, "{0}".format(target.size(1))
+        assert predict.size(2) == target.size(2), "{0} vs {1} ".format(predict.size(2), target.size(2))
+        assert predict.size(3) == target.size(3), "{0} vs {1} ".format(predict.size(3), target.size(3))
+        target = target.squeeze(1)
+        n, c, h, w = predict.size()
+        target_mask = (target >= 0) * (target != self.ignore_label)
+        target = target[target_mask]
+        predict = predict.transpose(1, 2).transpose(2, 3).contiguous()
+        predict = predict[target_mask.view(n, h, w, 1).repeat(1, 1, 1, c)].view(-1, c)
+        loss = F.cross_entropy(predict, target, weight=self.weights, reduction=self.reduction)
+        return loss

annotator/lama/saicinpainting/training/losses/style_loss.py

@@ -0,0 +1,155 @@
+import torch
+import torch.nn as nn
+import torchvision.models as models
+
+
+class PerceptualLoss(nn.Module):
+    r"""
+    Perceptual loss, VGG-based
+    https://arxiv.org/abs/1603.08155
+    https://github.com/dxyang/StyleTransfer/blob/master/utils.py
+    """
+
+    def __init__(self, weights=[1.0, 1.0, 1.0, 1.0, 1.0]):
+        super(PerceptualLoss, self).__init__()
+        self.add_module('vgg', VGG19())
+        self.criterion = torch.nn.L1Loss()
+        self.weights = weights
+
+    def __call__(self, x, y):
+        # Compute features
+        x_vgg, y_vgg = self.vgg(x), self.vgg(y)
+
+        content_loss = 0.0
+        content_loss += self.weights[0] * self.criterion(x_vgg['relu1_1'], y_vgg['relu1_1'])
+        content_loss += self.weights[1] * self.criterion(x_vgg['relu2_1'], y_vgg['relu2_1'])
+        content_loss += self.weights[2] * self.criterion(x_vgg['relu3_1'], y_vgg['relu3_1'])
+        content_loss += self.weights[3] * self.criterion(x_vgg['relu4_1'], y_vgg['relu4_1'])
+        content_loss += self.weights[4] * self.criterion(x_vgg['relu5_1'], y_vgg['relu5_1'])
+
+
+        return content_loss
+
+
+class VGG19(torch.nn.Module):
+    def __init__(self):
+        super(VGG19, self).__init__()
+        features = models.vgg19(pretrained=True).features
+        self.relu1_1 = torch.nn.Sequential()
+        self.relu1_2 = torch.nn.Sequential()
+
+        self.relu2_1 = torch.nn.Sequential()
+        self.relu2_2 = torch.nn.Sequential()
+
+        self.relu3_1 = torch.nn.Sequential()
+        self.relu3_2 = torch.nn.Sequential()
+        self.relu3_3 = torch.nn.Sequential()
+        self.relu3_4 = torch.nn.Sequential()
+
+        self.relu4_1 = torch.nn.Sequential()
+        self.relu4_2 = torch.nn.Sequential()
+        self.relu4_3 = torch.nn.Sequential()
+        self.relu4_4 = torch.nn.Sequential()
+
+        self.relu5_1 = torch.nn.Sequential()
+        self.relu5_2 = torch.nn.Sequential()
+        self.relu5_3 = torch.nn.Sequential()
+        self.relu5_4 = torch.nn.Sequential()
+
+        for x in range(2):
+            self.relu1_1.add_module(str(x), features[x])
+
+        for x in range(2, 4):
+            self.relu1_2.add_module(str(x), features[x])
+
+        for x in range(4, 7):
+            self.relu2_1.add_module(str(x), features[x])
+
+        for x in range(7, 9):
+            self.relu2_2.add_module(str(x), features[x])
+
+        for x in range(9, 12):
+            self.relu3_1.add_module(str(x), features[x])
+
+        for x in range(12, 14):
+            self.relu3_2.add_module(str(x), features[x])
+
+        for x in range(14, 16):
+            self.relu3_2.add_module(str(x), features[x])
+
+        for x in range(16, 18):
+            self.relu3_4.add_module(str(x), features[x])
+
+        for x in range(18, 21):
+            self.relu4_1.add_module(str(x), features[x])
+
+        for x in range(21, 23):
+            self.relu4_2.add_module(str(x), features[x])
+
+        for x in range(23, 25):
+            self.relu4_3.add_module(str(x), features[x])
+
+        for x in range(25, 27):
+            self.relu4_4.add_module(str(x), features[x])
+
+        for x in range(27, 30):
+            self.relu5_1.add_module(str(x), features[x])
+
+        for x in range(30, 32):
+            self.relu5_2.add_module(str(x), features[x])
+
+        for x in range(32, 34):
+            self.relu5_3.add_module(str(x), features[x])
+
+        for x in range(34, 36):
+            self.relu5_4.add_module(str(x), features[x])
+
+        # don't need the gradients, just want the features
+        for param in self.parameters():
+            param.requires_grad = False
+
+    def forward(self, x):
+        relu1_1 = self.relu1_1(x)
+        relu1_2 = self.relu1_2(relu1_1)
+
+        relu2_1 = self.relu2_1(relu1_2)
+        relu2_2 = self.relu2_2(relu2_1)
+
+        relu3_1 = self.relu3_1(relu2_2)
+        relu3_2 = self.relu3_2(relu3_1)
+        relu3_3 = self.relu3_3(relu3_2)
+        relu3_4 = self.relu3_4(relu3_3)
+
+        relu4_1 = self.relu4_1(relu3_4)
+        relu4_2 = self.relu4_2(relu4_1)
+        relu4_3 = self.relu4_3(relu4_2)
+        relu4_4 = self.relu4_4(relu4_3)
+
+        relu5_1 = self.relu5_1(relu4_4)
+        relu5_2 = self.relu5_2(relu5_1)
+        relu5_3 = self.relu5_3(relu5_2)
+        relu5_4 = self.relu5_4(relu5_3)
+
+        out = {
+            'relu1_1': relu1_1,
+            'relu1_2': relu1_2,
+
+            'relu2_1': relu2_1,
+            'relu2_2': relu2_2,
+
+            'relu3_1': relu3_1,
+            'relu3_2': relu3_2,
+            'relu3_3': relu3_3,
+            'relu3_4': relu3_4,
+
+            'relu4_1': relu4_1,
+            'relu4_2': relu4_2,
+            'relu4_3': relu4_3,
+            'relu4_4': relu4_4,
+
+            'relu5_1': relu5_1,
+            'relu5_2': relu5_2,
+            'relu5_3': relu5_3,
+            'relu5_4': relu5_4,
+        }
+        return out

annotator/lama/saicinpainting/training/modules/__init__.py

@@ -0,0 +1,31 @@
+import logging
+
+from annotator.lama.saicinpainting.training.modules.ffc import FFCResNetGenerator
+from annotator.lama.saicinpainting.training.modules.pix2pixhd import GlobalGenerator, MultiDilatedGlobalGenerator, \
+    NLayerDiscriminator, MultidilatedNLayerDiscriminator
+
+def make_generator(config, kind, **kwargs):
+    logging.info(f'Make generator {kind}')
+
+    if kind == 'pix2pixhd_multidilated':
+        return MultiDilatedGlobalGenerator(**kwargs)
+    
+    if kind == 'pix2pixhd_global':
+        return GlobalGenerator(**kwargs)
+
+    if kind == 'ffc_resnet':
+        return FFCResNetGenerator(**kwargs)
+
+    raise ValueError(f'Unknown generator kind {kind}')
+
+
+def make_discriminator(kind, **kwargs):
+    logging.info(f'Make discriminator {kind}')
+
+    if kind == 'pix2pixhd_nlayer_multidilated':
+        return MultidilatedNLayerDiscriminator(**kwargs)
+
+    if kind == 'pix2pixhd_nlayer':
+        return NLayerDiscriminator(**kwargs)
+
+    raise ValueError(f'Unknown discriminator kind {kind}')

annotator/lama/saicinpainting/training/modules/base.py

@@ -0,0 +1,80 @@
+import abc
+from typing import Tuple, List
+
+import torch
+import torch.nn as nn
+
+from annotator.lama.saicinpainting.training.modules.depthwise_sep_conv import DepthWiseSeperableConv
+from annotator.lama.saicinpainting.training.modules.multidilated_conv import MultidilatedConv
+
+
+class BaseDiscriminator(nn.Module):
+    @abc.abstractmethod
+    def forward(self, x: torch.Tensor) -> Tuple[torch.Tensor, List[torch.Tensor]]:
+        """
+        Predict scores and get intermediate activations. Useful for feature matching loss
+        :return tuple (scores, list of intermediate activations)
+        """
+        raise NotImplemented()
+
+
+def get_conv_block_ctor(kind='default'):
+    if not isinstance(kind, str):
+        return kind
+    if kind == 'default':
+        return nn.Conv2d
+    if kind == 'depthwise':
+        return DepthWiseSeperableConv   
+    if kind == 'multidilated':
+        return MultidilatedConv
+    raise ValueError(f'Unknown convolutional block kind {kind}')
+
+
+def get_norm_layer(kind='bn'):
+    if not isinstance(kind, str):
+        return kind
+    if kind == 'bn':
+        return nn.BatchNorm2d
+    if kind == 'in':
+        return nn.InstanceNorm2d
+    raise ValueError(f'Unknown norm block kind {kind}')
+
+
+def get_activation(kind='tanh'):
+    if kind == 'tanh':
+        return nn.Tanh()
+    if kind == 'sigmoid':
+        return nn.Sigmoid()
+    if kind is False:
+        return nn.Identity()
+    raise ValueError(f'Unknown activation kind {kind}')
+
+
+class SimpleMultiStepGenerator(nn.Module):
+    def __init__(self, steps: List[nn.Module]):
+        super().__init__()
+        self.steps = nn.ModuleList(steps)
+
+    def forward(self, x):
+        cur_in = x
+        outs = []
+        for step in self.steps:
+            cur_out = step(cur_in)
+            outs.append(cur_out)
+            cur_in = torch.cat((cur_in, cur_out), dim=1)
+        return torch.cat(outs[::-1], dim=1)
+
+def deconv_factory(kind, ngf, mult, norm_layer, activation, max_features):
+    if kind == 'convtranspose':
+        return [nn.ConvTranspose2d(min(max_features, ngf * mult), 
+                    min(max_features, int(ngf * mult / 2)), 
+                    kernel_size=3, stride=2, padding=1, output_padding=1),
+                    norm_layer(min(max_features, int(ngf * mult / 2))), activation]
+    elif kind == 'bilinear':
+        return [nn.Upsample(scale_factor=2, mode='bilinear'),
+                DepthWiseSeperableConv(min(max_features, ngf * mult), 
+                    min(max_features, int(ngf * mult / 2)), 
+                    kernel_size=3, stride=1, padding=1), 
+                norm_layer(min(max_features, int(ngf * mult / 2))), activation]
+    else:
+        raise Exception(f"Invalid deconv kind: {kind}")

annotator/lama/saicinpainting/training/modules/depthwise_sep_conv.py

@@ -0,0 +1,17 @@
+import torch
+import torch.nn as nn
+
+class DepthWiseSeperableConv(nn.Module):
+    def __init__(self, in_dim, out_dim, *args, **kwargs):
+        super().__init__()
+        if 'groups' in kwargs:
+            # ignoring groups for Depthwise Sep Conv
+            del kwargs['groups']
+        
+        self.depthwise = nn.Conv2d(in_dim, in_dim, *args, groups=in_dim, **kwargs)
+        self.pointwise = nn.Conv2d(in_dim, out_dim, kernel_size=1)
+        
+    def forward(self, x):
+        out = self.depthwise(x)
+        out = self.pointwise(out)
+        return out

annotator/lama/saicinpainting/training/modules/fake_fakes.py

@@ -0,0 +1,47 @@
+import torch
+from kornia import SamplePadding
+from kornia.augmentation import RandomAffine, CenterCrop
+
+
+class FakeFakesGenerator:
+    def __init__(self, aug_proba=0.5, img_aug_degree=30, img_aug_translate=0.2):
+        self.grad_aug = RandomAffine(degrees=360,
+                                     translate=0.2,
+                                     padding_mode=SamplePadding.REFLECTION,
+                                     keepdim=False,
+                                     p=1)
+        self.img_aug = RandomAffine(degrees=img_aug_degree,
+                                    translate=img_aug_translate,
+                                    padding_mode=SamplePadding.REFLECTION,
+                                    keepdim=True,
+                                    p=1)
+        self.aug_proba = aug_proba
+
+    def __call__(self, input_images, masks):
+        blend_masks = self._fill_masks_with_gradient(masks)
+        blend_target = self._make_blend_target(input_images)
+        result = input_images * (1 - blend_masks) + blend_target * blend_masks
+        return result, blend_masks
+
+    def _make_blend_target(self, input_images):
+        batch_size = input_images.shape[0]
+        permuted = input_images[torch.randperm(batch_size)]
+        augmented = self.img_aug(input_images)
+        is_aug = (torch.rand(batch_size, device=input_images.device)[:, None, None, None] < self.aug_proba).float()
+        result = augmented * is_aug + permuted * (1 - is_aug)
+        return result
+
+    def _fill_masks_with_gradient(self, masks):
+        batch_size, _, height, width = masks.shape
+        grad = torch.linspace(0, 1, steps=width * 2, device=masks.device, dtype=masks.dtype) \
+            .view(1, 1, 1, -1).expand(batch_size, 1, height * 2, width * 2)
+        grad = self.grad_aug(grad)
+        grad = CenterCrop((height, width))(grad)
+        grad *= masks
+
+        grad_for_min = grad + (1 - masks) * 10
+        grad -= grad_for_min.view(batch_size, -1).min(-1).values[:, None, None, None]
+        grad /= grad.view(batch_size, -1).max(-1).values[:, None, None, None] + 1e-6
+        grad.clamp_(min=0, max=1)
+
+        return grad

annotator/lama/saicinpainting/training/modules/ffc.py

@@ -0,0 +1,485 @@
+# Fast Fourier Convolution NeurIPS 2020
+# original implementation https://github.com/pkumivision/FFC/blob/main/model_zoo/ffc.py
+# paper https://proceedings.neurips.cc/paper/2020/file/2fd5d41ec6cfab47e32164d5624269b1-Paper.pdf
+
+import numpy as np
+import torch
+import torch.nn as nn
+import torch.nn.functional as F
+
+from annotator.lama.saicinpainting.training.modules.base import get_activation, BaseDiscriminator
+from annotator.lama.saicinpainting.training.modules.spatial_transform import LearnableSpatialTransformWrapper
+from annotator.lama.saicinpainting.training.modules.squeeze_excitation import SELayer
+from annotator.lama.saicinpainting.utils import get_shape
+
+
+class FFCSE_block(nn.Module):
+
+    def __init__(self, channels, ratio_g):
+        super(FFCSE_block, self).__init__()
+        in_cg = int(channels * ratio_g)
+        in_cl = channels - in_cg
+        r = 16
+
+        self.avgpool = nn.AdaptiveAvgPool2d((1, 1))
+        self.conv1 = nn.Conv2d(channels, channels // r,
+                               kernel_size=1, bias=True)
+        self.relu1 = nn.ReLU(inplace=True)
+        self.conv_a2l = None if in_cl == 0 else nn.Conv2d(
+            channels // r, in_cl, kernel_size=1, bias=True)
+        self.conv_a2g = None if in_cg == 0 else nn.Conv2d(
+            channels // r, in_cg, kernel_size=1, bias=True)
+        self.sigmoid = nn.Sigmoid()
+
+    def forward(self, x):
+        x = x if type(x) is tuple else (x, 0)
+        id_l, id_g = x
+
+        x = id_l if type(id_g) is int else torch.cat([id_l, id_g], dim=1)
+        x = self.avgpool(x)
+        x = self.relu1(self.conv1(x))
+
+        x_l = 0 if self.conv_a2l is None else id_l * \
+            self.sigmoid(self.conv_a2l(x))
+        x_g = 0 if self.conv_a2g is None else id_g * \
+            self.sigmoid(self.conv_a2g(x))
+        return x_l, x_g
+
+
+class FourierUnit(nn.Module):
+
+    def __init__(self, in_channels, out_channels, groups=1, spatial_scale_factor=None, spatial_scale_mode='bilinear',
+                 spectral_pos_encoding=False, use_se=False, se_kwargs=None, ffc3d=False, fft_norm='ortho'):
+        # bn_layer not used
+        super(FourierUnit, self).__init__()
+        self.groups = groups
+
+        self.conv_layer = torch.nn.Conv2d(in_channels=in_channels * 2 + (2 if spectral_pos_encoding else 0),
+                                          out_channels=out_channels * 2,
+                                          kernel_size=1, stride=1, padding=0, groups=self.groups, bias=False)
+        self.bn = torch.nn.BatchNorm2d(out_channels * 2)
+        self.relu = torch.nn.ReLU(inplace=True)
+
+        # squeeze and excitation block
+        self.use_se = use_se
+        if use_se:
+            if se_kwargs is None:
+                se_kwargs = {}
+            self.se = SELayer(self.conv_layer.in_channels, **se_kwargs)
+
+        self.spatial_scale_factor = spatial_scale_factor
+        self.spatial_scale_mode = spatial_scale_mode
+        self.spectral_pos_encoding = spectral_pos_encoding
+        self.ffc3d = ffc3d
+        self.fft_norm = fft_norm
+
+    def forward(self, x):
+        batch = x.shape[0]
+
+        if self.spatial_scale_factor is not None:
+            orig_size = x.shape[-2:]
+            x = F.interpolate(x, scale_factor=self.spatial_scale_factor, mode=self.spatial_scale_mode, align_corners=False)
+
+        r_size = x.size()
+        # (batch, c, h, w/2+1, 2)
+        fft_dim = (-3, -2, -1) if self.ffc3d else (-2, -1)
+        ffted = torch.fft.rfftn(x, dim=fft_dim, norm=self.fft_norm)
+        ffted = torch.stack((ffted.real, ffted.imag), dim=-1)
+        ffted = ffted.permute(0, 1, 4, 2, 3).contiguous()  # (batch, c, 2, h, w/2+1)
+        ffted = ffted.view((batch, -1,) + ffted.size()[3:])
+
+        if self.spectral_pos_encoding:
+            height, width = ffted.shape[-2:]
+            coords_vert = torch.linspace(0, 1, height)[None, None, :, None].expand(batch, 1, height, width).to(ffted)
+            coords_hor = torch.linspace(0, 1, width)[None, None, None, :].expand(batch, 1, height, width).to(ffted)
+            ffted = torch.cat((coords_vert, coords_hor, ffted), dim=1)
+
+        if self.use_se:
+            ffted = self.se(ffted)
+
+        ffted = self.conv_layer(ffted)  # (batch, c*2, h, w/2+1)
+        ffted = self.relu(self.bn(ffted))
+
+        ffted = ffted.view((batch, -1, 2,) + ffted.size()[2:]).permute(
+            0, 1, 3, 4, 2).contiguous()  # (batch,c, t, h, w/2+1, 2)
+        ffted = torch.complex(ffted[..., 0], ffted[..., 1])
+
+        ifft_shape_slice = x.shape[-3:] if self.ffc3d else x.shape[-2:]
+        output = torch.fft.irfftn(ffted, s=ifft_shape_slice, dim=fft_dim, norm=self.fft_norm)
+
+        if self.spatial_scale_factor is not None:
+            output = F.interpolate(output, size=orig_size, mode=self.spatial_scale_mode, align_corners=False)
+
+        return output
+
+
+class SeparableFourierUnit(nn.Module):
+
+    def __init__(self, in_channels, out_channels, groups=1, kernel_size=3):
+        # bn_layer not used
+        super(SeparableFourierUnit, self).__init__()
+        self.groups = groups
+        row_out_channels = out_channels // 2
+        col_out_channels = out_channels - row_out_channels
+        self.row_conv = torch.nn.Conv2d(in_channels=in_channels * 2,
+                                        out_channels=row_out_channels * 2,
+                                        kernel_size=(kernel_size, 1),  # kernel size is always like this, but the data will be transposed
+                                        stride=1, padding=(kernel_size // 2, 0),
+                                        padding_mode='reflect',
+                                        groups=self.groups, bias=False)
+        self.col_conv = torch.nn.Conv2d(in_channels=in_channels * 2,
+                                        out_channels=col_out_channels * 2,
+                                        kernel_size=(kernel_size, 1),  # kernel size is always like this, but the data will be transposed
+                                        stride=1, padding=(kernel_size // 2, 0),
+                                        padding_mode='reflect',
+                                        groups=self.groups, bias=False)
+        self.row_bn = torch.nn.BatchNorm2d(row_out_channels * 2)
+        self.col_bn = torch.nn.BatchNorm2d(col_out_channels * 2)
+        self.relu = torch.nn.ReLU(inplace=True)
+
+    def process_branch(self, x, conv, bn):
+        batch = x.shape[0]
+
+        r_size = x.size()
+        # (batch, c, h, w/2+1, 2)
+        ffted = torch.fft.rfft(x, norm="ortho")
+        ffted = torch.stack((ffted.real, ffted.imag), dim=-1)
+        ffted = ffted.permute(0, 1, 4, 2, 3).contiguous()  # (batch, c, 2, h, w/2+1)
+        ffted = ffted.view((batch, -1,) + ffted.size()[3:])
+
+        ffted = self.relu(bn(conv(ffted)))
+
+        ffted = ffted.view((batch, -1, 2,) + ffted.size()[2:]).permute(
+            0, 1, 3, 4, 2).contiguous()  # (batch,c, t, h, w/2+1, 2)
+        ffted = torch.complex(ffted[..., 0], ffted[..., 1])
+
+        output = torch.fft.irfft(ffted, s=x.shape[-1:], norm="ortho")
+        return output
+
+
+    def forward(self, x):
+        rowwise = self.process_branch(x, self.row_conv, self.row_bn)
+        colwise = self.process_branch(x.permute(0, 1, 3, 2), self.col_conv, self.col_bn).permute(0, 1, 3, 2)
+        out = torch.cat((rowwise, colwise), dim=1)
+        return out
+
+
+class SpectralTransform(nn.Module):
+
+    def __init__(self, in_channels, out_channels, stride=1, groups=1, enable_lfu=True, separable_fu=False, **fu_kwargs):
+        # bn_layer not used
+        super(SpectralTransform, self).__init__()
+        self.enable_lfu = enable_lfu
+        if stride == 2:
+            self.downsample = nn.AvgPool2d(kernel_size=(2, 2), stride=2)
+        else:
+            self.downsample = nn.Identity()
+
+        self.stride = stride
+        self.conv1 = nn.Sequential(
+            nn.Conv2d(in_channels, out_channels //
+                      2, kernel_size=1, groups=groups, bias=False),
+            nn.BatchNorm2d(out_channels // 2),
+            nn.ReLU(inplace=True)
+        )
+        fu_class = SeparableFourierUnit if separable_fu else FourierUnit
+        self.fu = fu_class(
+            out_channels // 2, out_channels // 2, groups, **fu_kwargs)
+        if self.enable_lfu:
+            self.lfu = fu_class(
+                out_channels // 2, out_channels // 2, groups)
+        self.conv2 = torch.nn.Conv2d(
+            out_channels // 2, out_channels, kernel_size=1, groups=groups, bias=False)
+
+    def forward(self, x):
+
+        x = self.downsample(x)
+        x = self.conv1(x)
+        output = self.fu(x)
+
+        if self.enable_lfu:
+            n, c, h, w = x.shape
+            split_no = 2
+            split_s = h // split_no
+            xs = torch.cat(torch.split(
+                x[:, :c // 4], split_s, dim=-2), dim=1).contiguous()
+            xs = torch.cat(torch.split(xs, split_s, dim=-1),
+                           dim=1).contiguous()
+            xs = self.lfu(xs)
+            xs = xs.repeat(1, 1, split_no, split_no).contiguous()
+        else:
+            xs = 0
+
+        output = self.conv2(x + output + xs)
+
+        return output
+
+
+class FFC(nn.Module):
+
+    def __init__(self, in_channels, out_channels, kernel_size,
+                 ratio_gin, ratio_gout, stride=1, padding=0,
+                 dilation=1, groups=1, bias=False, enable_lfu=True,
+                 padding_type='reflect', gated=False, **spectral_kwargs):
+        super(FFC, self).__init__()
+
+        assert stride == 1 or stride == 2, "Stride should be 1 or 2."
+        self.stride = stride
+
+        in_cg = int(in_channels * ratio_gin)
+        in_cl = in_channels - in_cg
+        out_cg = int(out_channels * ratio_gout)
+        out_cl = out_channels - out_cg
+        #groups_g = 1 if groups == 1 else int(groups * ratio_gout)
+        #groups_l = 1 if groups == 1 else groups - groups_g
+
+        self.ratio_gin = ratio_gin
+        self.ratio_gout = ratio_gout
+        self.global_in_num = in_cg
+
+        module = nn.Identity if in_cl == 0 or out_cl == 0 else nn.Conv2d
+        self.convl2l = module(in_cl, out_cl, kernel_size,
+                              stride, padding, dilation, groups, bias, padding_mode=padding_type)
+        module = nn.Identity if in_cl == 0 or out_cg == 0 else nn.Conv2d
+        self.convl2g = module(in_cl, out_cg, kernel_size,
+                              stride, padding, dilation, groups, bias, padding_mode=padding_type)
+        module = nn.Identity if in_cg == 0 or out_cl == 0 else nn.Conv2d
+        self.convg2l = module(in_cg, out_cl, kernel_size,
+                              stride, padding, dilation, groups, bias, padding_mode=padding_type)
+        module = nn.Identity if in_cg == 0 or out_cg == 0 else SpectralTransform
+        self.convg2g = module(
+            in_cg, out_cg, stride, 1 if groups == 1 else groups // 2, enable_lfu, **spectral_kwargs)
+
+        self.gated = gated
+        module = nn.Identity if in_cg == 0 or out_cl == 0 or not self.gated else nn.Conv2d
+        self.gate = module(in_channels, 2, 1)
+
+    def forward(self, x):
+        x_l, x_g = x if type(x) is tuple else (x, 0)
+        out_xl, out_xg = 0, 0
+
+        if self.gated:
+            total_input_parts = [x_l]
+            if torch.is_tensor(x_g):
+                total_input_parts.append(x_g)
+            total_input = torch.cat(total_input_parts, dim=1)
+
+            gates = torch.sigmoid(self.gate(total_input))
+            g2l_gate, l2g_gate = gates.chunk(2, dim=1)
+        else:
+            g2l_gate, l2g_gate = 1, 1
+
+        if self.ratio_gout != 1:
+            out_xl = self.convl2l(x_l) + self.convg2l(x_g) * g2l_gate
+        if self.ratio_gout != 0:
+            out_xg = self.convl2g(x_l) * l2g_gate + self.convg2g(x_g)
+
+        return out_xl, out_xg
+
+
+class FFC_BN_ACT(nn.Module):
+
+    def __init__(self, in_channels, out_channels,
+                 kernel_size, ratio_gin, ratio_gout,
+                 stride=1, padding=0, dilation=1, groups=1, bias=False,
+                 norm_layer=nn.BatchNorm2d, activation_layer=nn.Identity,
+                 padding_type='reflect',
+                 enable_lfu=True, **kwargs):
+        super(FFC_BN_ACT, self).__init__()
+        self.ffc = FFC(in_channels, out_channels, kernel_size,
+                       ratio_gin, ratio_gout, stride, padding, dilation,
+                       groups, bias, enable_lfu, padding_type=padding_type, **kwargs)
+        lnorm = nn.Identity if ratio_gout == 1 else norm_layer
+        gnorm = nn.Identity if ratio_gout == 0 else norm_layer
+        global_channels = int(out_channels * ratio_gout)
+        self.bn_l = lnorm(out_channels - global_channels)
+        self.bn_g = gnorm(global_channels)
+
+        lact = nn.Identity if ratio_gout == 1 else activation_layer
+        gact = nn.Identity if ratio_gout == 0 else activation_layer
+        self.act_l = lact(inplace=True)
+        self.act_g = gact(inplace=True)
+
+    def forward(self, x):
+        x_l, x_g = self.ffc(x)
+        x_l = self.act_l(self.bn_l(x_l))
+        x_g = self.act_g(self.bn_g(x_g))
+        return x_l, x_g
+
+
+class FFCResnetBlock(nn.Module):
+    def __init__(self, dim, padding_type, norm_layer, activation_layer=nn.ReLU, dilation=1,
+                 spatial_transform_kwargs=None, inline=False, **conv_kwargs):
+        super().__init__()
+        self.conv1 = FFC_BN_ACT(dim, dim, kernel_size=3, padding=dilation, dilation=dilation,
+                                norm_layer=norm_layer,
+                                activation_layer=activation_layer,
+                                padding_type=padding_type,
+                                **conv_kwargs)
+        self.conv2 = FFC_BN_ACT(dim, dim, kernel_size=3, padding=dilation, dilation=dilation,
+                                norm_layer=norm_layer,
+                                activation_layer=activation_layer,
+                                padding_type=padding_type,
+                                **conv_kwargs)
+        if spatial_transform_kwargs is not None:
+            self.conv1 = LearnableSpatialTransformWrapper(self.conv1, **spatial_transform_kwargs)
+            self.conv2 = LearnableSpatialTransformWrapper(self.conv2, **spatial_transform_kwargs)
+        self.inline = inline
+
+    def forward(self, x):
+        if self.inline:
+            x_l, x_g = x[:, :-self.conv1.ffc.global_in_num], x[:, -self.conv1.ffc.global_in_num:]
+        else:
+            x_l, x_g = x if type(x) is tuple else (x, 0)
+
+        id_l, id_g = x_l, x_g
+
+        x_l, x_g = self.conv1((x_l, x_g))
+        x_l, x_g = self.conv2((x_l, x_g))
+
+        x_l, x_g = id_l + x_l, id_g + x_g
+        out = x_l, x_g
+        if self.inline:
+            out = torch.cat(out, dim=1)
+        return out
+
+
+class ConcatTupleLayer(nn.Module):
+    def forward(self, x):
+        assert isinstance(x, tuple)
+        x_l, x_g = x
+        assert torch.is_tensor(x_l) or torch.is_tensor(x_g)
+        if not torch.is_tensor(x_g):
+            return x_l
+        return torch.cat(x, dim=1)
+
+
+class FFCResNetGenerator(nn.Module):
+    def __init__(self, input_nc, output_nc, ngf=64, n_downsampling=3, n_blocks=9, norm_layer=nn.BatchNorm2d,
+                 padding_type='reflect', activation_layer=nn.ReLU,
+                 up_norm_layer=nn.BatchNorm2d, up_activation=nn.ReLU(True),
+                 init_conv_kwargs={}, downsample_conv_kwargs={}, resnet_conv_kwargs={},
+                 spatial_transform_layers=None, spatial_transform_kwargs={},
+                 add_out_act=True, max_features=1024, out_ffc=False, out_ffc_kwargs={}):
+        assert (n_blocks >= 0)
+        super().__init__()
+
+        model = [nn.ReflectionPad2d(3),
+                 FFC_BN_ACT(input_nc, ngf, kernel_size=7, padding=0, norm_layer=norm_layer,
+                            activation_layer=activation_layer, **init_conv_kwargs)]
+
+        ### downsample
+        for i in range(n_downsampling):
+            mult = 2 ** i
+            if i == n_downsampling - 1:
+                cur_conv_kwargs = dict(downsample_conv_kwargs)
+                cur_conv_kwargs['ratio_gout'] = resnet_conv_kwargs.get('ratio_gin', 0)
+            else:
+                cur_conv_kwargs = downsample_conv_kwargs
+            model += [FFC_BN_ACT(min(max_features, ngf * mult),
+                                 min(max_features, ngf * mult * 2),
+                                 kernel_size=3, stride=2, padding=1,
+                                 norm_layer=norm_layer,
+                                 activation_layer=activation_layer,
+                                 **cur_conv_kwargs)]
+
+        mult = 2 ** n_downsampling
+        feats_num_bottleneck = min(max_features, ngf * mult)
+
+        ### resnet blocks
+        for i in range(n_blocks):
+            cur_resblock = FFCResnetBlock(feats_num_bottleneck, padding_type=padding_type, activation_layer=activation_layer,
+                                          norm_layer=norm_layer, **resnet_conv_kwargs)
+            if spatial_transform_layers is not None and i in spatial_transform_layers:
+                cur_resblock = LearnableSpatialTransformWrapper(cur_resblock, **spatial_transform_kwargs)
+            model += [cur_resblock]
+
+        model += [ConcatTupleLayer()]
+
+        ### upsample
+        for i in range(n_downsampling):
+            mult = 2 ** (n_downsampling - i)
+            model += [nn.ConvTranspose2d(min(max_features, ngf * mult),
+                                         min(max_features, int(ngf * mult / 2)),
+                                         kernel_size=3, stride=2, padding=1, output_padding=1),
+                      up_norm_layer(min(max_features, int(ngf * mult / 2))),
+                      up_activation]
+
+        if out_ffc:
+            model += [FFCResnetBlock(ngf, padding_type=padding_type, activation_layer=activation_layer,
+                                     norm_layer=norm_layer, inline=True, **out_ffc_kwargs)]
+
+        model += [nn.ReflectionPad2d(3),
+                  nn.Conv2d(ngf, output_nc, kernel_size=7, padding=0)]
+        if add_out_act:
+            model.append(get_activation('tanh' if add_out_act is True else add_out_act))
+        self.model = nn.Sequential(*model)
+
+    def forward(self, input):
+        return self.model(input)
+
+
+class FFCNLayerDiscriminator(BaseDiscriminator):
+    def __init__(self, input_nc, ndf=64, n_layers=3, norm_layer=nn.BatchNorm2d, max_features=512,
+                 init_conv_kwargs={}, conv_kwargs={}):
+        super().__init__()
+        self.n_layers = n_layers
+
+        def _act_ctor(inplace=True):
+            return nn.LeakyReLU(negative_slope=0.2, inplace=inplace)
+
+        kw = 3
+        padw = int(np.ceil((kw-1.0)/2))
+        sequence = [[FFC_BN_ACT(input_nc, ndf, kernel_size=kw, padding=padw, norm_layer=norm_layer,
+                                activation_layer=_act_ctor, **init_conv_kwargs)]]
+
+        nf = ndf
+        for n in range(1, n_layers):
+            nf_prev = nf
+            nf = min(nf * 2, max_features)
+
+            cur_model = [
+                FFC_BN_ACT(nf_prev, nf,
+                           kernel_size=kw, stride=2, padding=padw,
+                           norm_layer=norm_layer,
+                           activation_layer=_act_ctor,
+                           **conv_kwargs)
+            ]
+            sequence.append(cur_model)
+
+        nf_prev = nf
+        nf = min(nf * 2, 512)
+
+        cur_model = [
+            FFC_BN_ACT(nf_prev, nf,
+                       kernel_size=kw, stride=1, padding=padw,
+                       norm_layer=norm_layer,
+                       activation_layer=lambda *args, **kwargs: nn.LeakyReLU(*args, negative_slope=0.2, **kwargs),
+                       **conv_kwargs),
+            ConcatTupleLayer()
+        ]
+        sequence.append(cur_model)
+
+        sequence += [[nn.Conv2d(nf, 1, kernel_size=kw, stride=1, padding=padw)]]
+
+        for n in range(len(sequence)):
+            setattr(self, 'model'+str(n), nn.Sequential(*sequence[n]))
+
+    def get_all_activations(self, x):
+        res = [x]
+        for n in range(self.n_layers + 2):
+            model = getattr(self, 'model' + str(n))
+            res.append(model(res[-1]))
+        return res[1:]
+
+    def forward(self, x):
+        act = self.get_all_activations(x)
+        feats = []
+        for out in act[:-1]:
+            if isinstance(out, tuple):
+                if torch.is_tensor(out[1]):
+                    out = torch.cat(out, dim=1)
+                else:
+                    out = out[0]
+            feats.append(out)
+        return act[-1], feats

annotator/lama/saicinpainting/training/modules/multidilated_conv.py

@@ -0,0 +1,98 @@
+import torch
+import torch.nn as nn
+import random
+from annotator.lama.saicinpainting.training.modules.depthwise_sep_conv import DepthWiseSeperableConv
+
+class MultidilatedConv(nn.Module):
+    def __init__(self, in_dim, out_dim, kernel_size, dilation_num=3, comb_mode='sum', equal_dim=True,
+                 shared_weights=False, padding=1, min_dilation=1, shuffle_in_channels=False, use_depthwise=False, **kwargs):
+        super().__init__()
+        convs = []
+        self.equal_dim = equal_dim
+        assert comb_mode in ('cat_out', 'sum', 'cat_in', 'cat_both'), comb_mode
+        if comb_mode in ('cat_out', 'cat_both'):
+            self.cat_out = True
+            if equal_dim:
+                assert out_dim % dilation_num == 0
+                out_dims = [out_dim // dilation_num] * dilation_num
+                self.index = sum([[i + j * (out_dims[0]) for j in range(dilation_num)] for i in range(out_dims[0])], [])
+            else:
+                out_dims = [out_dim // 2 ** (i + 1) for i in range(dilation_num - 1)]
+                out_dims.append(out_dim - sum(out_dims))
+                index = []
+                starts = [0] + out_dims[:-1]
+                lengths = [out_dims[i] // out_dims[-1] for i in range(dilation_num)]
+                for i in range(out_dims[-1]):
+                    for j in range(dilation_num):
+                        index += list(range(starts[j], starts[j] + lengths[j]))
+                        starts[j] += lengths[j]
+                self.index = index
+                assert(len(index) == out_dim)
+            self.out_dims = out_dims
+        else:
+            self.cat_out = False
+            self.out_dims = [out_dim] * dilation_num
+
+        if comb_mode in ('cat_in', 'cat_both'):
+            if equal_dim:
+                assert in_dim % dilation_num == 0
+                in_dims = [in_dim // dilation_num] * dilation_num
+            else:
+                in_dims = [in_dim // 2 ** (i + 1) for i in range(dilation_num - 1)]
+                in_dims.append(in_dim - sum(in_dims))
+            self.in_dims = in_dims
+            self.cat_in = True
+        else:
+            self.cat_in = False
+            self.in_dims = [in_dim] * dilation_num
+
+        conv_type = DepthWiseSeperableConv if use_depthwise else nn.Conv2d
+        dilation = min_dilation
+        for i in range(dilation_num):
+            if isinstance(padding, int):
+                cur_padding = padding * dilation
+            else:
+                cur_padding = padding[i]
+            convs.append(conv_type(
+                self.in_dims[i], self.out_dims[i], kernel_size, padding=cur_padding, dilation=dilation, **kwargs
+            ))
+            if i > 0 and shared_weights:
+                convs[-1].weight = convs[0].weight
+                convs[-1].bias = convs[0].bias
+            dilation *= 2
+        self.convs = nn.ModuleList(convs)
+
+        self.shuffle_in_channels = shuffle_in_channels
+        if self.shuffle_in_channels:
+            # shuffle list as shuffling of tensors is nondeterministic
+            in_channels_permute = list(range(in_dim))
+            random.shuffle(in_channels_permute)
+            # save as buffer so it is saved and loaded with checkpoint
+            self.register_buffer('in_channels_permute', torch.tensor(in_channels_permute))
+
+    def forward(self, x):
+        if self.shuffle_in_channels:
+            x = x[:, self.in_channels_permute]
+
+        outs = []
+        if self.cat_in:
+            if self.equal_dim:
+                x = x.chunk(len(self.convs), dim=1)
+            else:
+                new_x = []
+                start = 0
+                for dim in self.in_dims:
+                    new_x.append(x[:, start:start+dim])
+                    start += dim
+                x = new_x
+        for i, conv in enumerate(self.convs):
+            if self.cat_in:
+                input = x[i]
+            else:
+                input = x
+            outs.append(conv(input))
+        if self.cat_out:
+            out = torch.cat(outs, dim=1)[:, self.index]
+        else:
+            out = sum(outs)
+        return out

annotator/lama/saicinpainting/training/modules/multiscale.py

@@ -0,0 +1,244 @@
+from typing import List, Tuple, Union, Optional
+
+import torch
+import torch.nn as nn
+import torch.nn.functional as F
+
+from annotator.lama.saicinpainting.training.modules.base import get_conv_block_ctor, get_activation
+from annotator.lama.saicinpainting.training.modules.pix2pixhd import ResnetBlock
+
+
+class ResNetHead(nn.Module):
+    def __init__(self, input_nc, ngf=64, n_downsampling=3, n_blocks=9, norm_layer=nn.BatchNorm2d,
+                 padding_type='reflect', conv_kind='default', activation=nn.ReLU(True)):
+        assert (n_blocks >= 0)
+        super(ResNetHead, self).__init__()
+
+        conv_layer = get_conv_block_ctor(conv_kind)
+
+        model = [nn.ReflectionPad2d(3),
+                 conv_layer(input_nc, ngf, kernel_size=7, padding=0),
+                 norm_layer(ngf),
+                 activation]
+
+        ### downsample
+        for i in range(n_downsampling):
+            mult = 2 ** i
+            model += [conv_layer(ngf * mult, ngf * mult * 2, kernel_size=3, stride=2, padding=1),
+                      norm_layer(ngf * mult * 2),
+                      activation]
+
+        mult = 2 ** n_downsampling
+
+        ### resnet blocks
+        for i in range(n_blocks):
+            model += [ResnetBlock(ngf * mult, padding_type=padding_type, activation=activation, norm_layer=norm_layer,
+                                  conv_kind=conv_kind)]
+
+        self.model = nn.Sequential(*model)
+
+    def forward(self, input):
+        return self.model(input)
+
+
+class ResNetTail(nn.Module):
+    def __init__(self, output_nc, ngf=64, n_downsampling=3, n_blocks=9, norm_layer=nn.BatchNorm2d,
+                 padding_type='reflect', conv_kind='default', activation=nn.ReLU(True),
+                 up_norm_layer=nn.BatchNorm2d, up_activation=nn.ReLU(True), add_out_act=False, out_extra_layers_n=0,
+                 add_in_proj=None):
+        assert (n_blocks >= 0)
+        super(ResNetTail, self).__init__()
+
+        mult = 2 ** n_downsampling
+
+        model = []
+
+        if add_in_proj is not None:
+            model.append(nn.Conv2d(add_in_proj, ngf * mult, kernel_size=1))
+
+        ### resnet blocks
+        for i in range(n_blocks):
+            model += [ResnetBlock(ngf * mult, padding_type=padding_type, activation=activation, norm_layer=norm_layer,
+                                  conv_kind=conv_kind)]
+
+        ### upsample
+        for i in range(n_downsampling):
+            mult = 2 ** (n_downsampling - i)
+            model += [nn.ConvTranspose2d(ngf * mult, int(ngf * mult / 2), kernel_size=3, stride=2, padding=1,
+                                         output_padding=1),
+                      up_norm_layer(int(ngf * mult / 2)),
+                      up_activation]
+        self.model = nn.Sequential(*model)
+
+        out_layers = []
+        for _ in range(out_extra_layers_n):
+            out_layers += [nn.Conv2d(ngf, ngf, kernel_size=1, padding=0),
+                           up_norm_layer(ngf),
+                           up_activation]
+        out_layers += [nn.ReflectionPad2d(3),
+                       nn.Conv2d(ngf, output_nc, kernel_size=7, padding=0)]
+
+        if add_out_act:
+            out_layers.append(get_activation('tanh' if add_out_act is True else add_out_act))
+
+        self.out_proj = nn.Sequential(*out_layers)
+
+    def forward(self, input, return_last_act=False):
+        features = self.model(input)
+        out = self.out_proj(features)
+        if return_last_act:
+            return out, features
+        else:
+            return out
+
+
+class MultiscaleResNet(nn.Module):
+    def __init__(self, input_nc, output_nc, ngf=64, n_downsampling=2, n_blocks_head=2, n_blocks_tail=6, n_scales=3,
+                 norm_layer=nn.BatchNorm2d, padding_type='reflect', conv_kind='default', activation=nn.ReLU(True),
+                 up_norm_layer=nn.BatchNorm2d, up_activation=nn.ReLU(True), add_out_act=False, out_extra_layers_n=0,
+                 out_cumulative=False, return_only_hr=False):
+        super().__init__()
+
+        self.heads = nn.ModuleList([ResNetHead(input_nc, ngf=ngf, n_downsampling=n_downsampling,
+                                               n_blocks=n_blocks_head, norm_layer=norm_layer, padding_type=padding_type,
+                                               conv_kind=conv_kind, activation=activation)
+                                    for i in range(n_scales)])
+        tail_in_feats = ngf * (2 ** n_downsampling) + ngf
+        self.tails = nn.ModuleList([ResNetTail(output_nc,
+                                               ngf=ngf, n_downsampling=n_downsampling,
+                                               n_blocks=n_blocks_tail, norm_layer=norm_layer, padding_type=padding_type,
+                                               conv_kind=conv_kind, activation=activation, up_norm_layer=up_norm_layer,
+                                               up_activation=up_activation, add_out_act=add_out_act,
+                                               out_extra_layers_n=out_extra_layers_n,
+                                               add_in_proj=None if (i == n_scales - 1) else tail_in_feats)
+                                    for i in range(n_scales)])
+
+        self.out_cumulative = out_cumulative
+        self.return_only_hr = return_only_hr
+
+    @property
+    def num_scales(self):
+        return len(self.heads)
+
+    def forward(self, ms_inputs: List[torch.Tensor], smallest_scales_num: Optional[int] = None) \
+        -> Union[torch.Tensor, List[torch.Tensor]]:
+        """
+        :param ms_inputs: List of inputs of different resolutions from HR to LR
+        :param smallest_scales_num: int or None, number of smallest scales to take at input
+        :return: Depending on return_only_hr:
+            True: Only the most HR output
+            False: List of outputs of different resolutions from HR to LR
+        """
+        if smallest_scales_num is None:
+            assert len(self.heads) == len(ms_inputs), (len(self.heads), len(ms_inputs), smallest_scales_num)
+            smallest_scales_num = len(self.heads)
+        else:
+            assert smallest_scales_num == len(ms_inputs) <= len(self.heads), (len(self.heads), len(ms_inputs), smallest_scales_num)
+
+        cur_heads = self.heads[-smallest_scales_num:]
+        ms_features = [cur_head(cur_inp) for cur_head, cur_inp in zip(cur_heads, ms_inputs)]
+
+        all_outputs = []
+        prev_tail_features = None
+        for i in range(len(ms_features)):
+            scale_i = -i - 1
+
+            cur_tail_input = ms_features[-i - 1]
+            if prev_tail_features is not None:
+                if prev_tail_features.shape != cur_tail_input.shape:
+                    prev_tail_features = F.interpolate(prev_tail_features, size=cur_tail_input.shape[2:],
+                                                       mode='bilinear', align_corners=False)
+                cur_tail_input = torch.cat((cur_tail_input, prev_tail_features), dim=1)
+
+            cur_out, cur_tail_feats = self.tails[scale_i](cur_tail_input, return_last_act=True)
+
+            prev_tail_features = cur_tail_feats
+            all_outputs.append(cur_out)
+
+        if self.out_cumulative:
+            all_outputs_cum = [all_outputs[0]]
+            for i in range(1, len(ms_features)):
+                cur_out = all_outputs[i]
+                cur_out_cum = cur_out + F.interpolate(all_outputs_cum[-1], size=cur_out.shape[2:],
+                                                      mode='bilinear', align_corners=False)
+                all_outputs_cum.append(cur_out_cum)
+            all_outputs = all_outputs_cum
+
+        if self.return_only_hr:
+            return all_outputs[-1]
+        else:
+            return all_outputs[::-1]
+
+
+class MultiscaleDiscriminatorSimple(nn.Module):
+    def __init__(self, ms_impl):
+        super().__init__()
+        self.ms_impl = nn.ModuleList(ms_impl)
+
+    @property
+    def num_scales(self):
+        return len(self.ms_impl)
+
+    def forward(self, ms_inputs: List[torch.Tensor], smallest_scales_num: Optional[int] = None) \
+            -> List[Tuple[torch.Tensor, List[torch.Tensor]]]:
+        """
+        :param ms_inputs: List of inputs of different resolutions from HR to LR
+        :param smallest_scales_num: int or None, number of smallest scales to take at input
+        :return: List of pairs (prediction, features) for different resolutions from HR to LR
+        """
+        if smallest_scales_num is None:
+            assert len(self.ms_impl) == len(ms_inputs), (len(self.ms_impl), len(ms_inputs), smallest_scales_num)
+            smallest_scales_num = len(self.heads)
+        else:
+            assert smallest_scales_num == len(ms_inputs) <= len(self.ms_impl), \
+                (len(self.ms_impl), len(ms_inputs), smallest_scales_num)
+
+        return [cur_discr(cur_input) for cur_discr, cur_input in zip(self.ms_impl[-smallest_scales_num:], ms_inputs)]
+
+
+class SingleToMultiScaleInputMixin:
+    def forward(self, x: torch.Tensor) -> List:
+        orig_height, orig_width = x.shape[2:]
+        factors = [2 ** i for i in range(self.num_scales)]
+        ms_inputs = [F.interpolate(x, size=(orig_height // f, orig_width // f), mode='bilinear', align_corners=False)
+                     for f in factors]
+        return super().forward(ms_inputs)
+
+
+class GeneratorMultiToSingleOutputMixin:
+    def forward(self, x):
+        return super().forward(x)[0]
+
+
+class DiscriminatorMultiToSingleOutputMixin:
+    def forward(self, x):
+        out_feat_tuples = super().forward(x)
+        return out_feat_tuples[0][0], [f for _, flist in out_feat_tuples for f in flist]
+
+
+class DiscriminatorMultiToSingleOutputStackedMixin:
+    def __init__(self, *args, return_feats_only_levels=None, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.return_feats_only_levels = return_feats_only_levels
+
+    def forward(self, x):
+        out_feat_tuples = super().forward(x)
+        outs = [out for out, _ in out_feat_tuples]
+        scaled_outs = [outs[0]] + [F.interpolate(cur_out, size=outs[0].shape[-2:],
+                                                 mode='bilinear', align_corners=False)
+                                   for cur_out in outs[1:]]
+        out = torch.cat(scaled_outs, dim=1)
+        if self.return_feats_only_levels is not None:
+            feat_lists = [out_feat_tuples[i][1] for i in self.return_feats_only_levels]
+        else:
+            feat_lists = [flist for _, flist in out_feat_tuples]
+        feats = [f for flist in feat_lists for f in flist]
+        return out, feats
+
+
+class MultiscaleDiscrSingleInput(SingleToMultiScaleInputMixin, DiscriminatorMultiToSingleOutputStackedMixin, MultiscaleDiscriminatorSimple):
+    pass
+
+
+class MultiscaleResNetSingle(GeneratorMultiToSingleOutputMixin, SingleToMultiScaleInputMixin, MultiscaleResNet):
+    pass

annotator/lama/saicinpainting/training/modules/pix2pixhd.py

@@ -0,0 +1,669 @@
+# original: https://github.com/NVIDIA/pix2pixHD/blob/master/models/networks.py
+import collections
+from functools import partial
+import functools
+import logging
+from collections import defaultdict
+
+import numpy as np
+import torch.nn as nn
+
+from annotator.lama.saicinpainting.training.modules.base import BaseDiscriminator, deconv_factory, get_conv_block_ctor, get_norm_layer, get_activation
+from annotator.lama.saicinpainting.training.modules.ffc import FFCResnetBlock
+from annotator.lama.saicinpainting.training.modules.multidilated_conv import MultidilatedConv
+
+class DotDict(defaultdict):
+    # https://stackoverflow.com/questions/2352181/how-to-use-a-dot-to-access-members-of-dictionary
+    """dot.notation access to dictionary attributes"""
+    __getattr__ = defaultdict.get
+    __setattr__ = defaultdict.__setitem__
+    __delattr__ = defaultdict.__delitem__
+
+class Identity(nn.Module):
+    def __init__(self):
+        super().__init__()
+
+    def forward(self, x):
+        return x
+
+
+class ResnetBlock(nn.Module):
+    def __init__(self, dim, padding_type, norm_layer, activation=nn.ReLU(True), use_dropout=False, conv_kind='default',
+                 dilation=1, in_dim=None, groups=1, second_dilation=None):
+        super(ResnetBlock, self).__init__()
+        self.in_dim = in_dim
+        self.dim = dim
+        if second_dilation is None:
+            second_dilation = dilation
+        self.conv_block = self.build_conv_block(dim, padding_type, norm_layer, activation, use_dropout,
+                                                conv_kind=conv_kind, dilation=dilation, in_dim=in_dim, groups=groups,
+                                                second_dilation=second_dilation)
+
+        if self.in_dim is not None:
+            self.input_conv = nn.Conv2d(in_dim, dim, 1)
+
+        self.out_channnels = dim
+
+    def build_conv_block(self, dim, padding_type, norm_layer, activation, use_dropout, conv_kind='default',
+                         dilation=1, in_dim=None, groups=1, second_dilation=1):
+        conv_layer = get_conv_block_ctor(conv_kind)
+
+        conv_block = []
+        p = 0
+        if padding_type == 'reflect':
+            conv_block += [nn.ReflectionPad2d(dilation)]
+        elif padding_type == 'replicate':
+            conv_block += [nn.ReplicationPad2d(dilation)]
+        elif padding_type == 'zero':
+            p = dilation
+        else:
+            raise NotImplementedError('padding [%s] is not implemented' % padding_type)
+
+        if in_dim is None:
+            in_dim = dim
+
+        conv_block += [conv_layer(in_dim, dim, kernel_size=3, padding=p, dilation=dilation),
+                       norm_layer(dim),
+                       activation]
+        if use_dropout:
+            conv_block += [nn.Dropout(0.5)]
+
+        p = 0
+        if padding_type == 'reflect':
+            conv_block += [nn.ReflectionPad2d(second_dilation)]
+        elif padding_type == 'replicate':
+            conv_block += [nn.ReplicationPad2d(second_dilation)]
+        elif padding_type == 'zero':
+            p = second_dilation
+        else:
+            raise NotImplementedError('padding [%s] is not implemented' % padding_type)
+        conv_block += [conv_layer(dim, dim, kernel_size=3, padding=p, dilation=second_dilation, groups=groups),
+                       norm_layer(dim)]
+
+        return nn.Sequential(*conv_block)
+
+    def forward(self, x):
+        x_before = x
+        if self.in_dim is not None:
+            x = self.input_conv(x)
+        out = x + self.conv_block(x_before)
+        return out
+
+class ResnetBlock5x5(nn.Module):
+    def __init__(self, dim, padding_type, norm_layer, activation=nn.ReLU(True), use_dropout=False, conv_kind='default',
+                 dilation=1, in_dim=None, groups=1, second_dilation=None):
+        super(ResnetBlock5x5, self).__init__()
+        self.in_dim = in_dim
+        self.dim = dim
+        if second_dilation is None:
+            second_dilation = dilation
+        self.conv_block = self.build_conv_block(dim, padding_type, norm_layer, activation, use_dropout,
+                                                conv_kind=conv_kind, dilation=dilation, in_dim=in_dim, groups=groups,
+                                                second_dilation=second_dilation)
+
+        if self.in_dim is not None:
+            self.input_conv = nn.Conv2d(in_dim, dim, 1)
+
+        self.out_channnels = dim
+
+    def build_conv_block(self, dim, padding_type, norm_layer, activation, use_dropout, conv_kind='default',
+                         dilation=1, in_dim=None, groups=1, second_dilation=1):
+        conv_layer = get_conv_block_ctor(conv_kind)
+
+        conv_block = []
+        p = 0
+        if padding_type == 'reflect':
+            conv_block += [nn.ReflectionPad2d(dilation * 2)]
+        elif padding_type == 'replicate':
+            conv_block += [nn.ReplicationPad2d(dilation * 2)]
+        elif padding_type == 'zero':
+            p = dilation * 2
+        else:
+            raise NotImplementedError('padding [%s] is not implemented' % padding_type)
+
+        if in_dim is None:
+            in_dim = dim
+
+        conv_block += [conv_layer(in_dim, dim, kernel_size=5, padding=p, dilation=dilation),
+                       norm_layer(dim),
+                       activation]
+        if use_dropout:
+            conv_block += [nn.Dropout(0.5)]
+
+        p = 0
+        if padding_type == 'reflect':
+            conv_block += [nn.ReflectionPad2d(second_dilation * 2)]
+        elif padding_type == 'replicate':
+            conv_block += [nn.ReplicationPad2d(second_dilation * 2)]
+        elif padding_type == 'zero':
+            p = second_dilation * 2
+        else:
+            raise NotImplementedError('padding [%s] is not implemented' % padding_type)
+        conv_block += [conv_layer(dim, dim, kernel_size=5, padding=p, dilation=second_dilation, groups=groups),
+                       norm_layer(dim)]
+
+        return nn.Sequential(*conv_block)
+
+    def forward(self, x):
+        x_before = x
+        if self.in_dim is not None:
+            x = self.input_conv(x)
+        out = x + self.conv_block(x_before)
+        return out
+
+
+class MultidilatedResnetBlock(nn.Module):
+    def __init__(self, dim, padding_type, conv_layer, norm_layer, activation=nn.ReLU(True), use_dropout=False):
+        super().__init__()
+        self.conv_block = self.build_conv_block(dim, padding_type, conv_layer, norm_layer, activation, use_dropout)
+
+    def build_conv_block(self, dim, padding_type, conv_layer, norm_layer, activation, use_dropout, dilation=1):
+        conv_block = []
+        conv_block += [conv_layer(dim, dim, kernel_size=3, padding_mode=padding_type),
+                       norm_layer(dim),
+                       activation]
+        if use_dropout:
+            conv_block += [nn.Dropout(0.5)]
+
+        conv_block += [conv_layer(dim, dim, kernel_size=3, padding_mode=padding_type),
+                       norm_layer(dim)]
+
+        return nn.Sequential(*conv_block)
+
+    def forward(self, x):
+        out = x + self.conv_block(x)
+        return out
+
+
+class MultiDilatedGlobalGenerator(nn.Module):
+    def __init__(self, input_nc, output_nc, ngf=64, n_downsampling=3,
+                 n_blocks=3, norm_layer=nn.BatchNorm2d,
+                 padding_type='reflect', conv_kind='default',
+                 deconv_kind='convtranspose', activation=nn.ReLU(True),
+                 up_norm_layer=nn.BatchNorm2d, affine=None, up_activation=nn.ReLU(True),
+                 add_out_act=True, max_features=1024, multidilation_kwargs={},
+                 ffc_positions=None, ffc_kwargs={}):
+        assert (n_blocks >= 0)
+        super().__init__()
+
+        conv_layer = get_conv_block_ctor(conv_kind)
+        resnet_conv_layer = functools.partial(get_conv_block_ctor('multidilated'), **multidilation_kwargs)
+        norm_layer = get_norm_layer(norm_layer)
+        if affine is not None:
+            norm_layer = partial(norm_layer, affine=affine)
+        up_norm_layer = get_norm_layer(up_norm_layer)
+        if affine is not None:
+            up_norm_layer = partial(up_norm_layer, affine=affine)
+
+        model = [nn.ReflectionPad2d(3),
+                 conv_layer(input_nc, ngf, kernel_size=7, padding=0),
+                 norm_layer(ngf),
+                 activation]
+
+        identity = Identity()
+        ### downsample
+        for i in range(n_downsampling):
+            mult = 2 ** i
+
+            model += [conv_layer(min(max_features, ngf * mult),
+                                    min(max_features, ngf * mult * 2),
+                                    kernel_size=3, stride=2, padding=1),
+                        norm_layer(min(max_features, ngf * mult * 2)),
+                        activation]
+
+        mult = 2 ** n_downsampling
+        feats_num_bottleneck = min(max_features, ngf * mult)
+
+        ### resnet blocks
+        for i in range(n_blocks):
+            if ffc_positions is not None and i in ffc_positions:
+                model += [FFCResnetBlock(feats_num_bottleneck, padding_type, norm_layer, activation_layer=nn.ReLU,
+                                         inline=True, **ffc_kwargs)]
+            model += [MultidilatedResnetBlock(feats_num_bottleneck, padding_type=padding_type,
+                                              conv_layer=resnet_conv_layer, activation=activation,
+                                              norm_layer=norm_layer)]
+
+        ### upsample
+        for i in range(n_downsampling):
+            mult = 2 ** (n_downsampling - i)
+            model += deconv_factory(deconv_kind, ngf, mult, up_norm_layer, up_activation, max_features)
+        model += [nn.ReflectionPad2d(3),
+                  nn.Conv2d(ngf, output_nc, kernel_size=7, padding=0)]
+        if add_out_act:
+            model.append(get_activation('tanh' if add_out_act is True else add_out_act))
+        self.model = nn.Sequential(*model)
+
+    def forward(self, input):
+        return self.model(input)
+
+class ConfigGlobalGenerator(nn.Module):
+    def __init__(self, input_nc, output_nc, ngf=64, n_downsampling=3,
+                 n_blocks=3, norm_layer=nn.BatchNorm2d,
+                 padding_type='reflect', conv_kind='default',
+                 deconv_kind='convtranspose', activation=nn.ReLU(True),
+                 up_norm_layer=nn.BatchNorm2d, affine=None, up_activation=nn.ReLU(True),
+                 add_out_act=True, max_features=1024,
+                 manual_block_spec=[],
+                 resnet_block_kind='multidilatedresnetblock',
+                 resnet_conv_kind='multidilated',
+                 resnet_dilation=1,
+                 multidilation_kwargs={}):
+        assert (n_blocks >= 0)
+        super().__init__()
+
+        conv_layer = get_conv_block_ctor(conv_kind)
+        resnet_conv_layer = functools.partial(get_conv_block_ctor(resnet_conv_kind), **multidilation_kwargs)
+        norm_layer = get_norm_layer(norm_layer)
+        if affine is not None:
+            norm_layer = partial(norm_layer, affine=affine)
+        up_norm_layer = get_norm_layer(up_norm_layer)
+        if affine is not None:
+            up_norm_layer = partial(up_norm_layer, affine=affine)
+
+        model = [nn.ReflectionPad2d(3),
+                 conv_layer(input_nc, ngf, kernel_size=7, padding=0),
+                 norm_layer(ngf),
+                 activation]
+
+        identity = Identity()
+
+        ### downsample
+        for i in range(n_downsampling):
+            mult = 2 ** i
+            model += [conv_layer(min(max_features, ngf * mult),
+                                    min(max_features, ngf * mult * 2),
+                                    kernel_size=3, stride=2, padding=1),
+                        norm_layer(min(max_features, ngf * mult * 2)),
+                        activation]
+
+        mult = 2 ** n_downsampling
+        feats_num_bottleneck = min(max_features, ngf * mult)
+
+        if len(manual_block_spec) == 0:
+            manual_block_spec = [
+                DotDict(lambda : None, {
+                    'n_blocks': n_blocks,
+                    'use_default': True})
+            ]
+
+        ### resnet blocks
+        for block_spec in manual_block_spec:
+            def make_and_add_blocks(model, block_spec):
+                block_spec = DotDict(lambda : None, block_spec)
+                if not block_spec.use_default:
+                    resnet_conv_layer = functools.partial(get_conv_block_ctor(block_spec.resnet_conv_kind), **block_spec.multidilation_kwargs)
+                    resnet_conv_kind = block_spec.resnet_conv_kind
+                    resnet_block_kind = block_spec.resnet_block_kind
+                    if block_spec.resnet_dilation is not None:
+                        resnet_dilation = block_spec.resnet_dilation
+                for i in range(block_spec.n_blocks):
+                    if resnet_block_kind == "multidilatedresnetblock":
+                        model += [MultidilatedResnetBlock(feats_num_bottleneck, padding_type=padding_type,
+                                                        conv_layer=resnet_conv_layer, activation=activation,
+                                                        norm_layer=norm_layer)]
+                    if resnet_block_kind == "resnetblock":                                            
+                        model += [ResnetBlock(ngf * mult, padding_type=padding_type, activation=activation, norm_layer=norm_layer,
+                                            conv_kind=resnet_conv_kind)]
+                    if resnet_block_kind == "resnetblock5x5":                                            
+                        model += [ResnetBlock5x5(ngf * mult, padding_type=padding_type, activation=activation, norm_layer=norm_layer,
+                                            conv_kind=resnet_conv_kind)]
+                    if resnet_block_kind == "resnetblockdwdil":
+                        model += [ResnetBlock(ngf * mult, padding_type=padding_type, activation=activation, norm_layer=norm_layer,
+                                            conv_kind=resnet_conv_kind, dilation=resnet_dilation, second_dilation=resnet_dilation)]
+            make_and_add_blocks(model, block_spec)
+        
+        ### upsample
+        for i in range(n_downsampling):
+            mult = 2 ** (n_downsampling - i)
+            model += deconv_factory(deconv_kind, ngf, mult, up_norm_layer, up_activation, max_features)
+        model += [nn.ReflectionPad2d(3),
+                  nn.Conv2d(ngf, output_nc, kernel_size=7, padding=0)]
+        if add_out_act:
+            model.append(get_activation('tanh' if add_out_act is True else add_out_act))
+        self.model = nn.Sequential(*model)
+
+    def forward(self, input):
+        return self.model(input)
+
+
+def make_dil_blocks(dilated_blocks_n, dilation_block_kind, dilated_block_kwargs):
+    blocks = []
+    for i in range(dilated_blocks_n):
+        if dilation_block_kind == 'simple':
+            blocks.append(ResnetBlock(**dilated_block_kwargs, dilation=2 ** (i + 1)))
+        elif dilation_block_kind == 'multi':
+            blocks.append(MultidilatedResnetBlock(**dilated_block_kwargs))
+        else:
+            raise ValueError(f'dilation_block_kind could not be "{dilation_block_kind}"')
+    return blocks
+
+
+class GlobalGenerator(nn.Module):
+    def __init__(self, input_nc, output_nc, ngf=64, n_downsampling=3, n_blocks=9, norm_layer=nn.BatchNorm2d,
+                 padding_type='reflect', conv_kind='default', activation=nn.ReLU(True),
+                 up_norm_layer=nn.BatchNorm2d, affine=None,
+                 up_activation=nn.ReLU(True), dilated_blocks_n=0, dilated_blocks_n_start=0,
+                 dilated_blocks_n_middle=0,
+                 add_out_act=True,
+                 max_features=1024, is_resblock_depthwise=False,
+                 ffc_positions=None, ffc_kwargs={}, dilation=1, second_dilation=None,
+                 dilation_block_kind='simple', multidilation_kwargs={}):
+        assert (n_blocks >= 0)
+        super().__init__()
+
+        conv_layer = get_conv_block_ctor(conv_kind)
+        norm_layer = get_norm_layer(norm_layer)
+        if affine is not None:
+            norm_layer = partial(norm_layer, affine=affine)
+        up_norm_layer = get_norm_layer(up_norm_layer)
+        if affine is not None:
+            up_norm_layer = partial(up_norm_layer, affine=affine)
+
+        if ffc_positions is not None:
+            ffc_positions = collections.Counter(ffc_positions)
+
+        model = [nn.ReflectionPad2d(3),
+                 conv_layer(input_nc, ngf, kernel_size=7, padding=0),
+                 norm_layer(ngf),
+                 activation]
+
+        identity = Identity()
+        ### downsample
+        for i in range(n_downsampling):
+            mult = 2 ** i
+
+            model += [conv_layer(min(max_features, ngf * mult),
+                                min(max_features, ngf * mult * 2),
+                                kernel_size=3, stride=2, padding=1),
+                        norm_layer(min(max_features, ngf * mult * 2)),
+                        activation]
+
+        mult = 2 ** n_downsampling
+        feats_num_bottleneck = min(max_features, ngf * mult)
+
+        dilated_block_kwargs = dict(dim=feats_num_bottleneck, padding_type=padding_type,
+                                    activation=activation, norm_layer=norm_layer)
+        if dilation_block_kind == 'simple':
+            dilated_block_kwargs['conv_kind'] = conv_kind
+        elif dilation_block_kind == 'multi':
+            dilated_block_kwargs['conv_layer'] = functools.partial(
+                get_conv_block_ctor('multidilated'), **multidilation_kwargs)
+
+        # dilated blocks at the start of the bottleneck sausage
+        if dilated_blocks_n_start is not None and dilated_blocks_n_start > 0:
+            model += make_dil_blocks(dilated_blocks_n_start, dilation_block_kind, dilated_block_kwargs)
+
+        # resnet blocks
+        for i in range(n_blocks):
+            # dilated blocks at the middle of the bottleneck sausage
+            if i == n_blocks // 2 and dilated_blocks_n_middle is not None and dilated_blocks_n_middle > 0:
+                model += make_dil_blocks(dilated_blocks_n_middle, dilation_block_kind, dilated_block_kwargs)
+            
+            if ffc_positions is not None and i in ffc_positions:
+                for _ in range(ffc_positions[i]):  # same position can occur more than once
+                    model += [FFCResnetBlock(feats_num_bottleneck, padding_type, norm_layer, activation_layer=nn.ReLU,
+                                             inline=True, **ffc_kwargs)]
+
+            if is_resblock_depthwise:
+                resblock_groups = feats_num_bottleneck
+            else:
+                resblock_groups = 1
+
+            model += [ResnetBlock(feats_num_bottleneck, padding_type=padding_type, activation=activation,
+                                    norm_layer=norm_layer, conv_kind=conv_kind, groups=resblock_groups,
+                                    dilation=dilation, second_dilation=second_dilation)]
+            
+
+        # dilated blocks at the end of the bottleneck sausage
+        if dilated_blocks_n is not None and dilated_blocks_n > 0:
+            model += make_dil_blocks(dilated_blocks_n, dilation_block_kind, dilated_block_kwargs)
+
+        # upsample
+        for i in range(n_downsampling):
+            mult = 2 ** (n_downsampling - i)
+            model += [nn.ConvTranspose2d(min(max_features, ngf * mult),
+                                         min(max_features, int(ngf * mult / 2)),
+                                         kernel_size=3, stride=2, padding=1, output_padding=1),
+                      up_norm_layer(min(max_features, int(ngf * mult / 2))),
+                      up_activation]
+        model += [nn.ReflectionPad2d(3),
+                  nn.Conv2d(ngf, output_nc, kernel_size=7, padding=0)]
+        if add_out_act:
+            model.append(get_activation('tanh' if add_out_act is True else add_out_act))
+        self.model = nn.Sequential(*model)
+
+    def forward(self, input):
+        return self.model(input)
+
+
+class GlobalGeneratorGated(GlobalGenerator):
+    def __init__(self, *args, **kwargs):
+        real_kwargs=dict(
+            conv_kind='gated_bn_relu',
+            activation=nn.Identity(),
+            norm_layer=nn.Identity
+        )
+        real_kwargs.update(kwargs)
+        super().__init__(*args, **real_kwargs)
+
+
+class GlobalGeneratorFromSuperChannels(nn.Module):
+    def __init__(self, input_nc, output_nc, n_downsampling, n_blocks, super_channels, norm_layer="bn", padding_type='reflect', add_out_act=True):
+        super().__init__()
+        self.n_downsampling = n_downsampling
+        norm_layer = get_norm_layer(norm_layer)
+        if type(norm_layer) == functools.partial:
+            use_bias = (norm_layer.func == nn.InstanceNorm2d)
+        else:
+            use_bias = (norm_layer == nn.InstanceNorm2d)
+
+        channels = self.convert_super_channels(super_channels)
+        self.channels = channels
+
+        model = [nn.ReflectionPad2d(3),
+                 nn.Conv2d(input_nc, channels[0], kernel_size=7, padding=0, bias=use_bias),
+                 norm_layer(channels[0]),
+                 nn.ReLU(True)]
+
+        for i in range(n_downsampling):  # add downsampling layers
+            mult = 2 ** i
+            model += [nn.Conv2d(channels[0+i], channels[1+i], kernel_size=3, stride=2, padding=1, bias=use_bias),
+                      norm_layer(channels[1+i]),
+                      nn.ReLU(True)]
+
+        mult = 2 ** n_downsampling
+
+        n_blocks1 = n_blocks // 3
+        n_blocks2 = n_blocks1
+        n_blocks3 = n_blocks - n_blocks1 - n_blocks2
+
+        for i in range(n_blocks1):
+            c = n_downsampling
+            dim = channels[c]
+            model += [ResnetBlock(dim, padding_type=padding_type, norm_layer=norm_layer)]
+
+        for i in range(n_blocks2):
+            c = n_downsampling+1
+            dim = channels[c]
+            kwargs = {}
+            if i == 0:
+                kwargs = {"in_dim": channels[c-1]}
+            model += [ResnetBlock(dim, padding_type=padding_type, norm_layer=norm_layer, **kwargs)]
+
+        for i in range(n_blocks3):
+            c = n_downsampling+2
+            dim = channels[c]
+            kwargs = {}
+            if i == 0:
+                kwargs = {"in_dim": channels[c-1]}
+            model += [ResnetBlock(dim, padding_type=padding_type, norm_layer=norm_layer, **kwargs)]
+
+        for i in range(n_downsampling):  # add upsampling layers
+            mult = 2 ** (n_downsampling - i)
+            model += [nn.ConvTranspose2d(channels[n_downsampling+3+i],
+                                           channels[n_downsampling+3+i+1],
+                                           kernel_size=3, stride=2,
+                                           padding=1, output_padding=1,
+                                           bias=use_bias),
+                      norm_layer(channels[n_downsampling+3+i+1]),
+                      nn.ReLU(True)]
+        model += [nn.ReflectionPad2d(3)]
+        model += [nn.Conv2d(channels[2*n_downsampling+3], output_nc, kernel_size=7, padding=0)]
+
+        if add_out_act:
+            model.append(get_activation('tanh' if add_out_act is True else add_out_act))
+        self.model = nn.Sequential(*model)
+
+    def convert_super_channels(self, super_channels):
+        n_downsampling = self.n_downsampling
+        result = []
+        cnt = 0
+
+        if n_downsampling == 2:
+            N1 = 10
+        elif n_downsampling == 3:
+            N1 = 13
+        else:
+            raise NotImplementedError
+
+        for i in range(0, N1):
+            if i in [1,4,7,10]:
+                channel = super_channels[cnt] * (2 ** cnt)
+                config = {'channel': channel}
+                result.append(channel)
+                logging.info(f"Downsample channels {result[-1]}")
+                cnt += 1
+
+        for i in range(3):
+            for counter, j in enumerate(range(N1 + i * 3, N1 + 3 + i * 3)):
+                if len(super_channels) == 6:
+                    channel = super_channels[3] * 4
+                else:
+                    channel = super_channels[i + 3] * 4
+                config = {'channel': channel}
+                if counter == 0:
+                    result.append(channel)
+                    logging.info(f"Bottleneck channels {result[-1]}")
+        cnt = 2
+
+        for i in range(N1+9, N1+21):
+            if i in [22, 25,28]:
+                cnt -= 1
+                if len(super_channels) == 6:
+                    channel = super_channels[5 - cnt] * (2 ** cnt)
+                else:
+                    channel = super_channels[7 - cnt] * (2 ** cnt)
+                result.append(int(channel))
+                logging.info(f"Upsample channels {result[-1]}")
+        return result
+
+    def forward(self, input):
+        return self.model(input)
+
+
+# Defines the PatchGAN discriminator with the specified arguments.
+class NLayerDiscriminator(BaseDiscriminator):
+    def __init__(self, input_nc, ndf=64, n_layers=3, norm_layer=nn.BatchNorm2d,):
+        super().__init__()
+        self.n_layers = n_layers
+
+        kw = 4
+        padw = int(np.ceil((kw-1.0)/2))
+        sequence = [[nn.Conv2d(input_nc, ndf, kernel_size=kw, stride=2, padding=padw),
+                     nn.LeakyReLU(0.2, True)]]
+
+        nf = ndf
+        for n in range(1, n_layers):
+            nf_prev = nf
+            nf = min(nf * 2, 512)
+
+            cur_model = []
+            cur_model += [
+                nn.Conv2d(nf_prev, nf, kernel_size=kw, stride=2, padding=padw),
+                norm_layer(nf),
+                nn.LeakyReLU(0.2, True)
+            ]
+            sequence.append(cur_model)
+
+        nf_prev = nf
+        nf = min(nf * 2, 512)
+
+        cur_model = []
+        cur_model += [
+            nn.Conv2d(nf_prev, nf, kernel_size=kw, stride=1, padding=padw),
+            norm_layer(nf),
+            nn.LeakyReLU(0.2, True)
+        ]
+        sequence.append(cur_model)
+
+        sequence += [[nn.Conv2d(nf, 1, kernel_size=kw, stride=1, padding=padw)]]
+
+        for n in range(len(sequence)):
+            setattr(self, 'model'+str(n), nn.Sequential(*sequence[n]))
+
+    def get_all_activations(self, x):
+        res = [x]
+        for n in range(self.n_layers + 2):
+            model = getattr(self, 'model' + str(n))
+            res.append(model(res[-1]))
+        return res[1:]
+
+    def forward(self, x):
+        act = self.get_all_activations(x)
+        return act[-1], act[:-1]
+
+
+class MultidilatedNLayerDiscriminator(BaseDiscriminator):
+    def __init__(self, input_nc, ndf=64, n_layers=3, norm_layer=nn.BatchNorm2d, multidilation_kwargs={}):
+        super().__init__()
+        self.n_layers = n_layers
+
+        kw = 4
+        padw = int(np.ceil((kw-1.0)/2))
+        sequence = [[nn.Conv2d(input_nc, ndf, kernel_size=kw, stride=2, padding=padw),
+                     nn.LeakyReLU(0.2, True)]]
+
+        nf = ndf
+        for n in range(1, n_layers):
+            nf_prev = nf
+            nf = min(nf * 2, 512)
+
+            cur_model = []
+            cur_model += [
+                MultidilatedConv(nf_prev, nf, kernel_size=kw, stride=2, padding=[2, 3], **multidilation_kwargs),
+                norm_layer(nf),
+                nn.LeakyReLU(0.2, True)
+            ]
+            sequence.append(cur_model)
+
+        nf_prev = nf
+        nf = min(nf * 2, 512)
+
+        cur_model = []
+        cur_model += [
+            nn.Conv2d(nf_prev, nf, kernel_size=kw, stride=1, padding=padw),
+            norm_layer(nf),
+            nn.LeakyReLU(0.2, True)
+        ]
+        sequence.append(cur_model)
+
+        sequence += [[nn.Conv2d(nf, 1, kernel_size=kw, stride=1, padding=padw)]]
+
+        for n in range(len(sequence)):
+            setattr(self, 'model'+str(n), nn.Sequential(*sequence[n]))
+
+    def get_all_activations(self, x):
+        res = [x]
+        for n in range(self.n_layers + 2):
+            model = getattr(self, 'model' + str(n))
+            res.append(model(res[-1]))
+        return res[1:]
+
+    def forward(self, x):
+        act = self.get_all_activations(x)
+        return act[-1], act[:-1]
+
+
+class NLayerDiscriminatorAsGen(NLayerDiscriminator):
+    def forward(self, x):
+        return super().forward(x)[0]

annotator/lama/saicinpainting/training/modules/spatial_transform.py

@@ -0,0 +1,49 @@
+import torch
+import torch.nn as nn
+import torch.nn.functional as F
+from kornia.geometry.transform import rotate
+
+
+class LearnableSpatialTransformWrapper(nn.Module):
+    def __init__(self, impl, pad_coef=0.5, angle_init_range=80, train_angle=True):
+        super().__init__()
+        self.impl = impl
+        self.angle = torch.rand(1) * angle_init_range
+        if train_angle:
+            self.angle = nn.Parameter(self.angle, requires_grad=True)
+        self.pad_coef = pad_coef
+
+    def forward(self, x):
+        if torch.is_tensor(x):
+            return self.inverse_transform(self.impl(self.transform(x)), x)
+        elif isinstance(x, tuple):
+            x_trans = tuple(self.transform(elem) for elem in x)
+            y_trans = self.impl(x_trans)
+            return tuple(self.inverse_transform(elem, orig_x) for elem, orig_x in zip(y_trans, x))
+        else:
+            raise ValueError(f'Unexpected input type {type(x)}')
+
+    def transform(self, x):
+        height, width = x.shape[2:]
+        pad_h, pad_w = int(height * self.pad_coef), int(width * self.pad_coef)
+        x_padded = F.pad(x, [pad_w, pad_w, pad_h, pad_h], mode='reflect')
+        x_padded_rotated = rotate(x_padded, angle=self.angle.to(x_padded))
+        return x_padded_rotated
+
+    def inverse_transform(self, y_padded_rotated, orig_x):
+        height, width = orig_x.shape[2:]
+        pad_h, pad_w = int(height * self.pad_coef), int(width * self.pad_coef)
+
+        y_padded = rotate(y_padded_rotated, angle=-self.angle.to(y_padded_rotated))
+        y_height, y_width = y_padded.shape[2:]
+        y = y_padded[:, :, pad_h : y_height - pad_h, pad_w : y_width - pad_w]
+        return y
+
+
+if __name__ == '__main__':
+    layer = LearnableSpatialTransformWrapper(nn.Identity())
+    x = torch.arange(2* 3 * 15 * 15).view(2, 3, 15, 15).float()
+    y = layer(x)
+    assert x.shape == y.shape
+    assert torch.allclose(x[:, :, 1:, 1:][:, :, :-1, :-1], y[:, :, 1:, 1:][:, :, :-1, :-1])
+    print('all ok')

annotator/lama/saicinpainting/training/modules/squeeze_excitation.py

@@ -0,0 +1,20 @@
+import torch.nn as nn
+
+
+class SELayer(nn.Module):
+    def __init__(self, channel, reduction=16):
+        super(SELayer, self).__init__()
+        self.avg_pool = nn.AdaptiveAvgPool2d(1)
+        self.fc = nn.Sequential(
+            nn.Linear(channel, channel // reduction, bias=False),
+            nn.ReLU(inplace=True),
+            nn.Linear(channel // reduction, channel, bias=False),
+            nn.Sigmoid()
+        )
+
+    def forward(self, x):
+        b, c, _, _ = x.size()
+        y = self.avg_pool(x).view(b, c)
+        y = self.fc(y).view(b, c, 1, 1)
+        res = x * y.expand_as(x)
+        return res

annotator/lama/saicinpainting/training/trainers/__init__.py

@@ -0,0 +1,29 @@
+import logging
+import torch
+from annotator.lama.saicinpainting.training.trainers.default import DefaultInpaintingTrainingModule
+
+
+def get_training_model_class(kind):
+    if kind == 'default':
+        return DefaultInpaintingTrainingModule
+
+    raise ValueError(f'Unknown trainer module {kind}')
+
+
+def make_training_model(config):
+    kind = config.training_model.kind
+    kwargs = dict(config.training_model)
+    kwargs.pop('kind')
+    kwargs['use_ddp'] = config.trainer.kwargs.get('accelerator', None) == 'ddp'
+
+    logging.info(f'Make training model {kind}')
+
+    cls = get_training_model_class(kind)
+    return cls(config, **kwargs)
+
+
+def load_checkpoint(train_config, path, map_location='cuda', strict=True):
+    model = make_training_model(train_config).generator
+    state = torch.load(path, map_location=map_location)
+    model.load_state_dict(state, strict=strict)
+    return model

annotator/lama/saicinpainting/training/trainers/base.py

@@ -0,0 +1,293 @@
+import copy
+import logging
+from typing import Dict, Tuple
+
+import pandas as pd
+import pytorch_lightning as ptl
+import torch
+import torch.nn as nn
+import torch.nn.functional as F
+# from torch.utils.data import DistributedSampler
+
+# from annotator.lama.saicinpainting.evaluation import make_evaluator
+# from annotator.lama.saicinpainting.training.data.datasets import make_default_train_dataloader, make_default_val_dataloader
+# from annotator.lama.saicinpainting.training.losses.adversarial import make_discrim_loss
+# from annotator.lama.saicinpainting.training.losses.perceptual import PerceptualLoss, ResNetPL
+from annotator.lama.saicinpainting.training.modules import make_generator  #, make_discriminator
+# from annotator.lama.saicinpainting.training.visualizers import make_visualizer
+from annotator.lama.saicinpainting.utils import add_prefix_to_keys, average_dicts, set_requires_grad, flatten_dict, \
+    get_has_ddp_rank
+
+LOGGER = logging.getLogger(__name__)
+
+
+def make_optimizer(parameters, kind='adamw', **kwargs):
+    if kind == 'adam':
+        optimizer_class = torch.optim.Adam
+    elif kind == 'adamw':
+        optimizer_class = torch.optim.AdamW
+    else:
+        raise ValueError(f'Unknown optimizer kind {kind}')
+    return optimizer_class(parameters, **kwargs)
+
+
+def update_running_average(result: nn.Module, new_iterate_model: nn.Module, decay=0.999):
+    with torch.no_grad():
+        res_params = dict(result.named_parameters())
+        new_params = dict(new_iterate_model.named_parameters())
+
+        for k in res_params.keys():
+            res_params[k].data.mul_(decay).add_(new_params[k].data, alpha=1 - decay)
+
+
+def make_multiscale_noise(base_tensor, scales=6, scale_mode='bilinear'):
+    batch_size, _, height, width = base_tensor.shape
+    cur_height, cur_width = height, width
+    result = []
+    align_corners = False if scale_mode in ('bilinear', 'bicubic') else None
+    for _ in range(scales):
+        cur_sample = torch.randn(batch_size, 1, cur_height, cur_width, device=base_tensor.device)
+        cur_sample_scaled = F.interpolate(cur_sample, size=(height, width), mode=scale_mode, align_corners=align_corners)
+        result.append(cur_sample_scaled)
+        cur_height //= 2
+        cur_width //= 2
+    return torch.cat(result, dim=1)
+
+
+class BaseInpaintingTrainingModule(ptl.LightningModule):
+    def __init__(self, config, use_ddp, *args,  predict_only=False, visualize_each_iters=100,
+                 average_generator=False, generator_avg_beta=0.999, average_generator_start_step=30000,
+                 average_generator_period=10, store_discr_outputs_for_vis=False,
+                 **kwargs):
+        super().__init__(*args, **kwargs)
+        LOGGER.info('BaseInpaintingTrainingModule init called')
+
+        self.config = config
+
+        self.generator = make_generator(config, **self.config.generator)
+        self.use_ddp = use_ddp
+
+        if not get_has_ddp_rank():
+            LOGGER.info(f'Generator\n{self.generator}')
+
+        # if not predict_only:
+        #     self.save_hyperparameters(self.config)
+        #     self.discriminator = make_discriminator(**self.config.discriminator)
+        #     self.adversarial_loss = make_discrim_loss(**self.config.losses.adversarial)
+        #     self.visualizer = make_visualizer(**self.config.visualizer)
+        #     self.val_evaluator = make_evaluator(**self.config.evaluator)
+        #     self.test_evaluator = make_evaluator(**self.config.evaluator)
+        #
+        #     if not get_has_ddp_rank():
+        #         LOGGER.info(f'Discriminator\n{self.discriminator}')
+        #
+        #     extra_val = self.config.data.get('extra_val', ())
+        #     if extra_val:
+        #         self.extra_val_titles = list(extra_val)
+        #         self.extra_evaluators = nn.ModuleDict({k: make_evaluator(**self.config.evaluator)
+        #                                                for k in extra_val})
+        #     else:
+        #         self.extra_evaluators = {}
+        #
+        #     self.average_generator = average_generator
+        #     self.generator_avg_beta = generator_avg_beta
+        #     self.average_generator_start_step = average_generator_start_step
+        #     self.average_generator_period = average_generator_period
+        #     self.generator_average = None
+        #     self.last_generator_averaging_step = -1
+        #     self.store_discr_outputs_for_vis = store_discr_outputs_for_vis
+        #
+        #     if self.config.losses.get("l1", {"weight_known": 0})['weight_known'] > 0:
+        #         self.loss_l1 = nn.L1Loss(reduction='none')
+        #
+        #     if self.config.losses.get("mse", {"weight": 0})['weight'] > 0:
+        #         self.loss_mse = nn.MSELoss(reduction='none')
+        #
+        #     if self.config.losses.perceptual.weight > 0:
+        #         self.loss_pl = PerceptualLoss()
+        #
+        #     # if self.config.losses.get("resnet_pl", {"weight": 0})['weight'] > 0:
+        #     #     self.loss_resnet_pl = ResNetPL(**self.config.losses.resnet_pl)
+        #     # else:
+        #     #     self.loss_resnet_pl = None
+        #
+        #     self.loss_resnet_pl = None
+
+        self.visualize_each_iters = visualize_each_iters
+        LOGGER.info('BaseInpaintingTrainingModule init done')
+
+    def configure_optimizers(self):
+        discriminator_params = list(self.discriminator.parameters())
+        return [
+            dict(optimizer=make_optimizer(self.generator.parameters(), **self.config.optimizers.generator)),
+            dict(optimizer=make_optimizer(discriminator_params, **self.config.optimizers.discriminator)),
+        ]
+
+    def train_dataloader(self):
+        kwargs = dict(self.config.data.train)
+        if self.use_ddp:
+            kwargs['ddp_kwargs'] = dict(num_replicas=self.trainer.num_nodes * self.trainer.num_processes,
+                                        rank=self.trainer.global_rank,
+                                        shuffle=True)
+        dataloader = make_default_train_dataloader(**self.config.data.train)
+        return dataloader
+
+    def val_dataloader(self):
+        res = [make_default_val_dataloader(**self.config.data.val)]
+
+        if self.config.data.visual_test is not None:
+            res = res + [make_default_val_dataloader(**self.config.data.visual_test)]
+        else:
+            res = res + res
+
+        extra_val = self.config.data.get('extra_val', ())
+        if extra_val:
+            res += [make_default_val_dataloader(**extra_val[k]) for k in self.extra_val_titles]
+
+        return res
+
+    def training_step(self, batch, batch_idx, optimizer_idx=None):
+        self._is_training_step = True
+        return self._do_step(batch, batch_idx, mode='train', optimizer_idx=optimizer_idx)
+
+    def validation_step(self, batch, batch_idx, dataloader_idx):
+        extra_val_key = None
+        if dataloader_idx == 0:
+            mode = 'val'
+        elif dataloader_idx == 1:
+            mode = 'test'
+        else:
+            mode = 'extra_val'
+            extra_val_key = self.extra_val_titles[dataloader_idx - 2]
+        self._is_training_step = False
+        return self._do_step(batch, batch_idx, mode=mode, extra_val_key=extra_val_key)
+
+    def training_step_end(self, batch_parts_outputs):
+        if self.training and self.average_generator \
+                and self.global_step >= self.average_generator_start_step \
+                and self.global_step >= self.last_generator_averaging_step + self.average_generator_period:
+            if self.generator_average is None:
+                self.generator_average = copy.deepcopy(self.generator)
+            else:
+                update_running_average(self.generator_average, self.generator, decay=self.generator_avg_beta)
+            self.last_generator_averaging_step = self.global_step
+
+        full_loss = (batch_parts_outputs['loss'].mean()
+                     if torch.is_tensor(batch_parts_outputs['loss'])  # loss is not tensor when no discriminator used
+                     else torch.tensor(batch_parts_outputs['loss']).float().requires_grad_(True))
+        log_info = {k: v.mean() for k, v in batch_parts_outputs['log_info'].items()}
+        self.log_dict(log_info, on_step=True, on_epoch=False)
+        return full_loss
+
+    def validation_epoch_end(self, outputs):
+        outputs = [step_out for out_group in outputs for step_out in out_group]
+        averaged_logs = average_dicts(step_out['log_info'] for step_out in outputs)
+        self.log_dict({k: v.mean() for k, v in averaged_logs.items()})
+
+        pd.set_option('display.max_columns', 500)
+        pd.set_option('display.width', 1000)
+
+        # standard validation
+        val_evaluator_states = [s['val_evaluator_state'] for s in outputs if 'val_evaluator_state' in s]
+        val_evaluator_res = self.val_evaluator.evaluation_end(states=val_evaluator_states)
+        val_evaluator_res_df = pd.DataFrame(val_evaluator_res).stack(1).unstack(0)
+        val_evaluator_res_df.dropna(axis=1, how='all', inplace=True)
+        LOGGER.info(f'Validation metrics after epoch #{self.current_epoch}, '
+                    f'total {self.global_step} iterations:\n{val_evaluator_res_df}')
+
+        for k, v in flatten_dict(val_evaluator_res).items():
+            self.log(f'val_{k}', v)
+
+        # standard visual test
+        test_evaluator_states = [s['test_evaluator_state'] for s in outputs
+                                 if 'test_evaluator_state' in s]
+        test_evaluator_res = self.test_evaluator.evaluation_end(states=test_evaluator_states)
+        test_evaluator_res_df = pd.DataFrame(test_evaluator_res).stack(1).unstack(0)
+        test_evaluator_res_df.dropna(axis=1, how='all', inplace=True)
+        LOGGER.info(f'Test metrics after epoch #{self.current_epoch}, '
+                    f'total {self.global_step} iterations:\n{test_evaluator_res_df}')
+
+        for k, v in flatten_dict(test_evaluator_res).items():
+            self.log(f'test_{k}', v)
+
+        # extra validations
+        if self.extra_evaluators:
+            for cur_eval_title, cur_evaluator in self.extra_evaluators.items():
+                cur_state_key = f'extra_val_{cur_eval_title}_evaluator_state'
+                cur_states = [s[cur_state_key] for s in outputs if cur_state_key in s]
+                cur_evaluator_res = cur_evaluator.evaluation_end(states=cur_states)
+                cur_evaluator_res_df = pd.DataFrame(cur_evaluator_res).stack(1).unstack(0)
+                cur_evaluator_res_df.dropna(axis=1, how='all', inplace=True)
+                LOGGER.info(f'Extra val {cur_eval_title} metrics after epoch #{self.current_epoch}, '
+                            f'total {self.global_step} iterations:\n{cur_evaluator_res_df}')
+                for k, v in flatten_dict(cur_evaluator_res).items():
+                    self.log(f'extra_val_{cur_eval_title}_{k}', v)
+
+    def _do_step(self, batch, batch_idx, mode='train', optimizer_idx=None, extra_val_key=None):
+        if optimizer_idx == 0:  # step for generator
+            set_requires_grad(self.generator, True)
+            set_requires_grad(self.discriminator, False)
+        elif optimizer_idx == 1:  # step for discriminator
+            set_requires_grad(self.generator, False)
+            set_requires_grad(self.discriminator, True)
+
+        batch = self(batch)
+
+        total_loss = 0
+        metrics = {}
+
+        if optimizer_idx is None or optimizer_idx == 0:  # step for generator
+            total_loss, metrics = self.generator_loss(batch)
+
+        elif optimizer_idx is None or optimizer_idx == 1:  # step for discriminator
+            if self.config.losses.adversarial.weight > 0:
+                total_loss, metrics = self.discriminator_loss(batch)
+
+        if self.get_ddp_rank() in (None, 0) and (batch_idx % self.visualize_each_iters == 0 or mode == 'test'):
+            if self.config.losses.adversarial.weight > 0:
+                if self.store_discr_outputs_for_vis:
+                    with torch.no_grad():
+                        self.store_discr_outputs(batch)
+            vis_suffix = f'_{mode}'
+            if mode == 'extra_val':
+                vis_suffix += f'_{extra_val_key}'
+            self.visualizer(self.current_epoch, batch_idx, batch, suffix=vis_suffix)
+
+        metrics_prefix = f'{mode}_'
+        if mode == 'extra_val':
+            metrics_prefix += f'{extra_val_key}_'
+        result = dict(loss=total_loss, log_info=add_prefix_to_keys(metrics, metrics_prefix))
+        if mode == 'val':
+            result['val_evaluator_state'] = self.val_evaluator.process_batch(batch)
+        elif mode == 'test':
+            result['test_evaluator_state'] = self.test_evaluator.process_batch(batch)
+        elif mode == 'extra_val':
+            result[f'extra_val_{extra_val_key}_evaluator_state'] = self.extra_evaluators[extra_val_key].process_batch(batch)
+
+        return result
+
+    def get_current_generator(self, no_average=False):
+        if not no_average and not self.training and self.average_generator and self.generator_average is not None:
+            return self.generator_average
+        return self.generator
+
+    def forward(self, batch: Dict[str, torch.Tensor]) -> Dict[str, torch.Tensor]:
+        """Pass data through generator and obtain at leas 'predicted_image' and 'inpainted' keys"""
+        raise NotImplementedError()
+
+    def generator_loss(self, batch) -> Tuple[torch.Tensor, Dict[str, torch.Tensor]]:
+        raise NotImplementedError()
+
+    def discriminator_loss(self, batch) -> Tuple[torch.Tensor, Dict[str, torch.Tensor]]:
+        raise NotImplementedError()
+
+    def store_discr_outputs(self, batch):
+        out_size = batch['image'].shape[2:]
+        discr_real_out, _ = self.discriminator(batch['image'])
+        discr_fake_out, _ = self.discriminator(batch['predicted_image'])
+        batch['discr_output_real'] = F.interpolate(discr_real_out, size=out_size, mode='nearest')
+        batch['discr_output_fake'] = F.interpolate(discr_fake_out, size=out_size, mode='nearest')
+        batch['discr_output_diff'] = batch['discr_output_real'] - batch['discr_output_fake']
+
+    def get_ddp_rank(self):
+        return self.trainer.global_rank if (self.trainer.num_nodes * self.trainer.num_processes) > 1 else None

annotator/lama/saicinpainting/training/trainers/default.py

@@ -0,0 +1,175 @@
+import logging
+
+import torch
+import torch.nn.functional as F
+from omegaconf import OmegaConf
+
+# from annotator.lama.saicinpainting.training.data.datasets import make_constant_area_crop_params
+from annotator.lama.saicinpainting.training.losses.distance_weighting import make_mask_distance_weighter
+from annotator.lama.saicinpainting.training.losses.feature_matching import feature_matching_loss, masked_l1_loss
+# from annotator.lama.saicinpainting.training.modules.fake_fakes import FakeFakesGenerator
+from annotator.lama.saicinpainting.training.trainers.base import BaseInpaintingTrainingModule, make_multiscale_noise
+from annotator.lama.saicinpainting.utils import add_prefix_to_keys, get_ramp
+
+LOGGER = logging.getLogger(__name__)
+
+
+def make_constant_area_crop_batch(batch, **kwargs):
+    crop_y, crop_x, crop_height, crop_width = make_constant_area_crop_params(img_height=batch['image'].shape[2],
+                                                                             img_width=batch['image'].shape[3],
+                                                                             **kwargs)
+    batch['image'] = batch['image'][:, :, crop_y : crop_y + crop_height, crop_x : crop_x + crop_width]
+    batch['mask'] = batch['mask'][:, :, crop_y: crop_y + crop_height, crop_x: crop_x + crop_width]
+    return batch
+
+
+class DefaultInpaintingTrainingModule(BaseInpaintingTrainingModule):
+    def __init__(self, *args, concat_mask=True, rescale_scheduler_kwargs=None, image_to_discriminator='predicted_image',
+                 add_noise_kwargs=None, noise_fill_hole=False, const_area_crop_kwargs=None,
+                 distance_weighter_kwargs=None, distance_weighted_mask_for_discr=False,
+                 fake_fakes_proba=0, fake_fakes_generator_kwargs=None,
+                 **kwargs):
+        super().__init__(*args, **kwargs)
+        self.concat_mask = concat_mask
+        self.rescale_size_getter = get_ramp(**rescale_scheduler_kwargs) if rescale_scheduler_kwargs is not None else None
+        self.image_to_discriminator = image_to_discriminator
+        self.add_noise_kwargs = add_noise_kwargs
+        self.noise_fill_hole = noise_fill_hole
+        self.const_area_crop_kwargs = const_area_crop_kwargs
+        self.refine_mask_for_losses = make_mask_distance_weighter(**distance_weighter_kwargs) \
+            if distance_weighter_kwargs is not None else None
+        self.distance_weighted_mask_for_discr = distance_weighted_mask_for_discr
+
+        self.fake_fakes_proba = fake_fakes_proba
+        if self.fake_fakes_proba > 1e-3:
+            self.fake_fakes_gen = FakeFakesGenerator(**(fake_fakes_generator_kwargs or {}))
+
+    def forward(self, batch):
+        if self.training and self.rescale_size_getter is not None:
+            cur_size = self.rescale_size_getter(self.global_step)
+            batch['image'] = F.interpolate(batch['image'], size=cur_size, mode='bilinear', align_corners=False)
+            batch['mask'] = F.interpolate(batch['mask'], size=cur_size, mode='nearest')
+
+        if self.training and self.const_area_crop_kwargs is not None:
+            batch = make_constant_area_crop_batch(batch, **self.const_area_crop_kwargs)
+
+        img = batch['image']
+        mask = batch['mask']
+
+        masked_img = img * (1 - mask)
+
+        if self.add_noise_kwargs is not None:
+            noise = make_multiscale_noise(masked_img, **self.add_noise_kwargs)
+            if self.noise_fill_hole:
+                masked_img = masked_img + mask * noise[:, :masked_img.shape[1]]
+            masked_img = torch.cat([masked_img, noise], dim=1)
+
+        if self.concat_mask:
+            masked_img = torch.cat([masked_img, mask], dim=1)
+
+        batch['predicted_image'] = self.generator(masked_img)
+        batch['inpainted'] = mask * batch['predicted_image'] + (1 - mask) * batch['image']
+
+        if self.fake_fakes_proba > 1e-3:
+            if self.training and torch.rand(1).item() < self.fake_fakes_proba:
+                batch['fake_fakes'], batch['fake_fakes_masks'] = self.fake_fakes_gen(img, mask)
+                batch['use_fake_fakes'] = True
+            else:
+                batch['fake_fakes'] = torch.zeros_like(img)
+                batch['fake_fakes_masks'] = torch.zeros_like(mask)
+                batch['use_fake_fakes'] = False
+
+        batch['mask_for_losses'] = self.refine_mask_for_losses(img, batch['predicted_image'], mask) \
+            if self.refine_mask_for_losses is not None and self.training \
+            else mask
+
+        return batch
+
+    def generator_loss(self, batch):
+        img = batch['image']
+        predicted_img = batch[self.image_to_discriminator]
+        original_mask = batch['mask']
+        supervised_mask = batch['mask_for_losses']
+
+        # L1
+        l1_value = masked_l1_loss(predicted_img, img, supervised_mask,
+                                  self.config.losses.l1.weight_known,
+                                  self.config.losses.l1.weight_missing)
+
+        total_loss = l1_value
+        metrics = dict(gen_l1=l1_value)
+
+        # vgg-based perceptual loss
+        if self.config.losses.perceptual.weight > 0:
+            pl_value = self.loss_pl(predicted_img, img, mask=supervised_mask).sum() * self.config.losses.perceptual.weight
+            total_loss = total_loss + pl_value
+            metrics['gen_pl'] = pl_value
+
+        # discriminator
+        # adversarial_loss calls backward by itself
+        mask_for_discr = supervised_mask if self.distance_weighted_mask_for_discr else original_mask
+        self.adversarial_loss.pre_generator_step(real_batch=img, fake_batch=predicted_img,
+                                                 generator=self.generator, discriminator=self.discriminator)
+        discr_real_pred, discr_real_features = self.discriminator(img)
+        discr_fake_pred, discr_fake_features = self.discriminator(predicted_img)
+        adv_gen_loss, adv_metrics = self.adversarial_loss.generator_loss(real_batch=img,
+                                                                         fake_batch=predicted_img,
+                                                                         discr_real_pred=discr_real_pred,
+                                                                         discr_fake_pred=discr_fake_pred,
+                                                                         mask=mask_for_discr)
+        total_loss = total_loss + adv_gen_loss
+        metrics['gen_adv'] = adv_gen_loss
+        metrics.update(add_prefix_to_keys(adv_metrics, 'adv_'))
+
+        # feature matching
+        if self.config.losses.feature_matching.weight > 0:
+            need_mask_in_fm = OmegaConf.to_container(self.config.losses.feature_matching).get('pass_mask', False)
+            mask_for_fm = supervised_mask if need_mask_in_fm else None
+            fm_value = feature_matching_loss(discr_fake_features, discr_real_features,
+                                             mask=mask_for_fm) * self.config.losses.feature_matching.weight
+            total_loss = total_loss + fm_value
+            metrics['gen_fm'] = fm_value
+
+        if self.loss_resnet_pl is not None:
+            resnet_pl_value = self.loss_resnet_pl(predicted_img, img)
+            total_loss = total_loss + resnet_pl_value
+            metrics['gen_resnet_pl'] = resnet_pl_value
+
+        return total_loss, metrics
+
+    def discriminator_loss(self, batch):
+        total_loss = 0
+        metrics = {}
+
+        predicted_img = batch[self.image_to_discriminator].detach()
+        self.adversarial_loss.pre_discriminator_step(real_batch=batch['image'], fake_batch=predicted_img,
+                                                     generator=self.generator, discriminator=self.discriminator)
+        discr_real_pred, discr_real_features = self.discriminator(batch['image'])
+        discr_fake_pred, discr_fake_features = self.discriminator(predicted_img)
+        adv_discr_loss, adv_metrics = self.adversarial_loss.discriminator_loss(real_batch=batch['image'],
+                                                                               fake_batch=predicted_img,
+                                                                               discr_real_pred=discr_real_pred,
+                                                                               discr_fake_pred=discr_fake_pred,
+                                                                               mask=batch['mask'])
+        total_loss = total_loss + adv_discr_loss
+        metrics['discr_adv'] = adv_discr_loss
+        metrics.update(add_prefix_to_keys(adv_metrics, 'adv_'))
+
+
+        if batch.get('use_fake_fakes', False):
+            fake_fakes = batch['fake_fakes']
+            self.adversarial_loss.pre_discriminator_step(real_batch=batch['image'], fake_batch=fake_fakes,
+                                                         generator=self.generator, discriminator=self.discriminator)
+            discr_fake_fakes_pred, _ = self.discriminator(fake_fakes)
+            fake_fakes_adv_discr_loss, fake_fakes_adv_metrics = self.adversarial_loss.discriminator_loss(
+                real_batch=batch['image'],
+                fake_batch=fake_fakes,
+                discr_real_pred=discr_real_pred,
+                discr_fake_pred=discr_fake_fakes_pred,
+                mask=batch['mask']
+            )
+            total_loss = total_loss + fake_fakes_adv_discr_loss
+            metrics['discr_adv_fake_fakes'] = fake_fakes_adv_discr_loss
+            metrics.update(add_prefix_to_keys(fake_fakes_adv_metrics, 'adv_'))
+
+        return total_loss, metrics

annotator/lama/saicinpainting/training/visualizers/__init__.py

@@ -0,0 +1,15 @@
+import logging
+
+from annotator.lama.saicinpainting.training.visualizers.directory import DirectoryVisualizer
+from annotator.lama.saicinpainting.training.visualizers.noop import NoopVisualizer
+
+
+def make_visualizer(kind, **kwargs):
+    logging.info(f'Make visualizer {kind}')
+
+    if kind == 'directory':
+        return DirectoryVisualizer(**kwargs)
+    if kind == 'noop':
+        return NoopVisualizer()
+
+    raise ValueError(f'Unknown visualizer kind {kind}')

annotator/lama/saicinpainting/training/visualizers/base.py

@@ -0,0 +1,73 @@
+import abc
+from typing import Dict, List
+
+import numpy as np
+import torch
+from skimage import color
+from skimage.segmentation import mark_boundaries
+
+from . import colors
+
+COLORS, _ = colors.generate_colors(151) # 151 - max classes for semantic segmentation
+
+
+class BaseVisualizer:
+    @abc.abstractmethod
+    def __call__(self, epoch_i, batch_i, batch, suffix='', rank=None):
+        """
+        Take a batch, make an image from it and visualize
+        """
+        raise NotImplementedError()
+
+
+def visualize_mask_and_images(images_dict: Dict[str, np.ndarray], keys: List[str],
+                              last_without_mask=True, rescale_keys=None, mask_only_first=None,
+                              black_mask=False) -> np.ndarray:
+    mask = images_dict['mask'] > 0.5
+    result = []
+    for i, k in enumerate(keys):
+        img = images_dict[k]
+        img = np.transpose(img, (1, 2, 0))
+
+        if rescale_keys is not None and k in rescale_keys:
+            img = img - img.min()
+            img /= img.max() + 1e-5
+        if len(img.shape) == 2:
+            img = np.expand_dims(img, 2)
+
+        if img.shape[2] == 1:
+            img = np.repeat(img, 3, axis=2)
+        elif (img.shape[2] > 3):
+            img_classes = img.argmax(2)
+            img = color.label2rgb(img_classes, colors=COLORS)
+
+        if mask_only_first:
+            need_mark_boundaries = i == 0
+        else:
+            need_mark_boundaries = i < len(keys) - 1 or not last_without_mask
+
+        if need_mark_boundaries:
+            if black_mask:
+                img = img * (1 - mask[0][..., None])
+            img = mark_boundaries(img,
+                                  mask[0],
+                                  color=(1., 0., 0.),
+                                  outline_color=(1., 1., 1.),
+                                  mode='thick')
+        result.append(img)
+    return np.concatenate(result, axis=1)
+
+
+def visualize_mask_and_images_batch(batch: Dict[str, torch.Tensor], keys: List[str], max_items=10,
+                                    last_without_mask=True, rescale_keys=None) -> np.ndarray:
+    batch = {k: tens.detach().cpu().numpy() for k, tens in batch.items()
+             if k in keys or k == 'mask'}
+
+    batch_size = next(iter(batch.values())).shape[0]
+    items_to_vis = min(batch_size, max_items)
+    result = []
+    for i in range(items_to_vis):
+        cur_dct = {k: tens[i] for k, tens in batch.items()}
+        result.append(visualize_mask_and_images(cur_dct, keys, last_without_mask=last_without_mask,
+                                                rescale_keys=rescale_keys))
+    return np.concatenate(result, axis=0)

annotator/lama/saicinpainting/training/visualizers/colors.py

@@ -0,0 +1,76 @@
+import random
+import colorsys
+
+import numpy as np
+import matplotlib
+matplotlib.use('agg')
+import matplotlib.pyplot as plt 
+from matplotlib.colors import LinearSegmentedColormap
+
+
+def generate_colors(nlabels, type='bright', first_color_black=False, last_color_black=True, verbose=False):
+    # https://stackoverflow.com/questions/14720331/how-to-generate-random-colors-in-matplotlib
+    """
+    Creates a random colormap to be used together with matplotlib. Useful for segmentation tasks
+    :param nlabels: Number of labels (size of colormap)
+    :param type: 'bright' for strong colors, 'soft' for pastel colors
+    :param first_color_black: Option to use first color as black, True or False
+    :param last_color_black: Option to use last color as black, True or False
+    :param verbose: Prints the number of labels and shows the colormap. True or False
+    :return: colormap for matplotlib
+    """
+    if type not in ('bright', 'soft'):
+        print ('Please choose "bright" or "soft" for type')
+        return
+
+    if verbose:
+        print('Number of labels: ' + str(nlabels))
+
+    # Generate color map for bright colors, based on hsv
+    if type == 'bright':
+        randHSVcolors = [(np.random.uniform(low=0.0, high=1),
+                          np.random.uniform(low=0.2, high=1),
+                          np.random.uniform(low=0.9, high=1)) for i in range(nlabels)]
+
+        # Convert HSV list to RGB
+        randRGBcolors = []
+        for HSVcolor in randHSVcolors:
+            randRGBcolors.append(colorsys.hsv_to_rgb(HSVcolor[0], HSVcolor[1], HSVcolor[2]))
+
+        if first_color_black:
+            randRGBcolors[0] = [0, 0, 0]
+
+        if last_color_black:
+            randRGBcolors[-1] = [0, 0, 0]
+
+        random_colormap = LinearSegmentedColormap.from_list('new_map', randRGBcolors, N=nlabels)
+
+    # Generate soft pastel colors, by limiting the RGB spectrum
+    if type == 'soft':
+        low = 0.6
+        high = 0.95
+        randRGBcolors = [(np.random.uniform(low=low, high=high),
+                          np.random.uniform(low=low, high=high),
+                          np.random.uniform(low=low, high=high)) for i in range(nlabels)]
+
+        if first_color_black:
+            randRGBcolors[0] = [0, 0, 0]
+
+        if last_color_black:
+            randRGBcolors[-1] = [0, 0, 0]
+        random_colormap = LinearSegmentedColormap.from_list('new_map', randRGBcolors, N=nlabels)
+
+    # Display colorbar
+    if verbose:
+        from matplotlib import colors, colorbar
+        from matplotlib import pyplot as plt
+        fig, ax = plt.subplots(1, 1, figsize=(15, 0.5))
+
+        bounds = np.linspace(0, nlabels, nlabels + 1)
+        norm = colors.BoundaryNorm(bounds, nlabels)
+
+        cb = colorbar.ColorbarBase(ax, cmap=random_colormap, norm=norm, spacing='proportional', ticks=None,
+                                   boundaries=bounds, format='%1i', orientation=u'horizontal')
+
+    return randRGBcolors, random_colormap
+

annotator/lama/saicinpainting/training/visualizers/directory.py

@@ -0,0 +1,36 @@
+import os
+
+import cv2
+import numpy as np
+
+from annotator.lama.saicinpainting.training.visualizers.base import BaseVisualizer, visualize_mask_and_images_batch
+from annotator.lama.saicinpainting.utils import check_and_warn_input_range
+
+
+class DirectoryVisualizer(BaseVisualizer):
+    DEFAULT_KEY_ORDER = 'image predicted_image inpainted'.split(' ')
+
+    def __init__(self, outdir, key_order=DEFAULT_KEY_ORDER, max_items_in_batch=10,
+                 last_without_mask=True, rescale_keys=None):
+        self.outdir = outdir
+        os.makedirs(self.outdir, exist_ok=True)
+        self.key_order = key_order
+        self.max_items_in_batch = max_items_in_batch
+        self.last_without_mask = last_without_mask
+        self.rescale_keys = rescale_keys
+
+    def __call__(self, epoch_i, batch_i, batch, suffix='', rank=None):
+        check_and_warn_input_range(batch['image'], 0, 1, 'DirectoryVisualizer target image')
+        vis_img = visualize_mask_and_images_batch(batch, self.key_order, max_items=self.max_items_in_batch,
+                                                  last_without_mask=self.last_without_mask,
+                                                  rescale_keys=self.rescale_keys)
+
+        vis_img = np.clip(vis_img * 255, 0, 255).astype('uint8')
+
+        curoutdir = os.path.join(self.outdir, f'epoch{epoch_i:04d}{suffix}')
+        os.makedirs(curoutdir, exist_ok=True)
+        rank_suffix = f'_r{rank}' if rank is not None else ''
+        out_fname = os.path.join(curoutdir, f'batch{batch_i:07d}{rank_suffix}.jpg')
+
+        vis_img = cv2.cvtColor(vis_img, cv2.COLOR_RGB2BGR)
+        cv2.imwrite(out_fname, vis_img)

annotator/lama/saicinpainting/training/visualizers/noop.py

@@ -0,0 +1,9 @@
+from annotator.lama.saicinpainting.training.visualizers.base import BaseVisualizer
+
+
+class NoopVisualizer(BaseVisualizer):
+    def __init__(self, *args, **kwargs):
+        pass
+
+    def __call__(self, epoch_i, batch_i, batch, suffix='', rank=None):
+        pass