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app.py

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+"""
+This file is used for deploying hugging face demo:
+https://huggingface.co/spaces/sczhou/CodeFormer
+"""
+
+import sys
+sys.path.append('CodeFormer')
+import os
+import cv2
+import torch
+import torch.nn.functional as F
+import gradio as gr
+
+from torchvision.transforms.functional import normalize
+
+from basicsr.utils import imwrite, img2tensor, tensor2img
+from basicsr.utils.download_util import load_file_from_url
+from facelib.utils.face_restoration_helper import FaceRestoreHelper
+from facelib.utils.misc import is_gray
+from basicsr.archs.rrdbnet_arch import RRDBNet
+from basicsr.utils.realesrgan_utils import RealESRGANer
+
+from basicsr.utils.registry import ARCH_REGISTRY
+
+
+os.system("pip freeze")
+
+pretrain_model_url = {
+    'codeformer': 'https://github.com/sczhou/CodeFormer/releases/download/v0.1.0/codeformer.pth',
+    'detection': 'https://github.com/sczhou/CodeFormer/releases/download/v0.1.0/detection_Resnet50_Final.pth',
+    'parsing': 'https://github.com/sczhou/CodeFormer/releases/download/v0.1.0/parsing_parsenet.pth',
+    'realesrgan': 'https://github.com/sczhou/CodeFormer/releases/download/v0.1.0/RealESRGAN_x2plus.pth'
+}
+# download weights
+if not os.path.exists('CodeFormer/weights/CodeFormer/codeformer.pth'):
+    load_file_from_url(url=pretrain_model_url['codeformer'], model_dir='CodeFormer/weights/CodeFormer', progress=True, file_name=None)
+if not os.path.exists('CodeFormer/weights/facelib/detection_Resnet50_Final.pth'):
+    load_file_from_url(url=pretrain_model_url['detection'], model_dir='CodeFormer/weights/facelib', progress=True, file_name=None)
+if not os.path.exists('CodeFormer/weights/facelib/parsing_parsenet.pth'):
+    load_file_from_url(url=pretrain_model_url['parsing'], model_dir='CodeFormer/weights/facelib', progress=True, file_name=None)
+if not os.path.exists('CodeFormer/weights/realesrgan/RealESRGAN_x2plus.pth'):
+    load_file_from_url(url=pretrain_model_url['realesrgan'], model_dir='CodeFormer/weights/realesrgan', progress=True, file_name=None)
+
+# download images
+torch.hub.download_url_to_file(
+    'https://replicate.com/api/models/sczhou/codeformer/files/fa3fe3d1-76b0-4ca8-ac0d-0a925cb0ff54/06.png',
+    '01.png')
+torch.hub.download_url_to_file(
+    'https://replicate.com/api/models/sczhou/codeformer/files/a1daba8e-af14-4b00-86a4-69cec9619b53/04.jpg',
+    '02.jpg')
+torch.hub.download_url_to_file(
+    'https://replicate.com/api/models/sczhou/codeformer/files/542d64f9-1712-4de7-85f7-3863009a7c3d/03.jpg',
+    '03.jpg')
+torch.hub.download_url_to_file(
+    'https://replicate.com/api/models/sczhou/codeformer/files/a11098b0-a18a-4c02-a19a-9a7045d68426/010.jpg',
+    '04.jpg')
+torch.hub.download_url_to_file(
+    'https://replicate.com/api/models/sczhou/codeformer/files/7cf19c2c-e0cf-4712-9af8-cf5bdbb8d0ee/012.jpg',
+    '05.jpg')
+torch.hub.download_url_to_file(
+    'https://raw.githubusercontent.com/sczhou/CodeFormer/master/inputs/cropped_faces/0729.png',
+    '06.png')
+
+def imread(img_path):
+    img = cv2.imread(img_path)
+    img = cv2.cvtColor(img, cv2.COLOR_BGR2RGB)
+    return img
+
+# set enhancer with RealESRGAN
+def set_realesrgan():
+    half = True if torch.cuda.is_available() else False
+    model = RRDBNet(
+        num_in_ch=3,
+        num_out_ch=3,
+        num_feat=64,
+        num_block=23,
+        num_grow_ch=32,
+        scale=2,
+    )
+    upsampler = RealESRGANer(
+        scale=2,
+        model_path="CodeFormer/weights/realesrgan/RealESRGAN_x2plus.pth",
+        model=model,
+        tile=400,
+        tile_pad=40,
+        pre_pad=0,
+        half=half,
+    )
+    return upsampler
+
+upsampler = set_realesrgan()
+device = torch.device('cuda' if torch.cuda.is_available() else 'cpu')
+codeformer_net = ARCH_REGISTRY.get("CodeFormer")(
+    dim_embd=512,
+    codebook_size=1024,
+    n_head=8,
+    n_layers=9,
+    connect_list=["32", "64", "128", "256"],
+).to(device)
+ckpt_path = "CodeFormer/weights/CodeFormer/codeformer.pth"
+checkpoint = torch.load(ckpt_path)["params_ema"]
+codeformer_net.load_state_dict(checkpoint)
+codeformer_net.eval()
+
+os.makedirs('output', exist_ok=True)
+
+def inference(image, face_align, background_enhance, face_upsample, upscale, codeformer_fidelity):
+    """Run a single prediction on the model"""
+    try: # global try
+        # take the default setting for the demo
+        only_center_face = False
+        draw_box = False
+        detection_model = "retinaface_resnet50"
+
+        print('Inp:', image, background_enhance, face_upsample, upscale, codeformer_fidelity)
+        face_align = face_align if face_align is not None else True
+        background_enhance = background_enhance if background_enhance is not None else True
+        face_upsample = face_upsample if face_upsample is not None else True
+        upscale = upscale if (upscale is not None and upscale > 0) else 2
+
+        has_aligned = not face_align
+        upscale = 1 if has_aligned else upscale
+
+        img = cv2.imread(str(image), cv2.IMREAD_COLOR)
+        print('\timage size:', img.shape)
+
+        upscale = int(upscale) # convert type to int
+        if upscale > 4: # avoid memory exceeded due to too large upscale
+            upscale = 4 
+        if upscale > 2 and max(img.shape[:2])>1000: # avoid memory exceeded due to too large img resolution
+            upscale = 2 
+        if max(img.shape[:2]) > 1500: # avoid memory exceeded due to too large img resolution
+            upscale = 1
+            background_enhance = False
+            face_upsample = False
+
+        face_helper = FaceRestoreHelper(
+            upscale,
+            face_size=512,
+            crop_ratio=(1, 1),
+            det_model=detection_model,
+            save_ext="png",
+            use_parse=True,
+            device=device,
+        )
+        bg_upsampler = upsampler if background_enhance else None
+        face_upsampler = upsampler if face_upsample else None
+
+        if has_aligned:
+            # the input faces are already cropped and aligned
+            img = cv2.resize(img, (512, 512), interpolation=cv2.INTER_LINEAR)
+            face_helper.is_gray = is_gray(img, threshold=5)
+            if face_helper.is_gray:
+                print('\tgrayscale input: True')
+            face_helper.cropped_faces = [img]
+        else:
+            face_helper.read_image(img)
+            # get face landmarks for each face
+            num_det_faces = face_helper.get_face_landmarks_5(
+            only_center_face=only_center_face, resize=640, eye_dist_threshold=5
+            )
+            print(f'\tdetect {num_det_faces} faces')
+            # align and warp each face
+            face_helper.align_warp_face()
+
+        # face restoration for each cropped face
+        for idx, cropped_face in enumerate(face_helper.cropped_faces):
+            # prepare data
+            cropped_face_t = img2tensor(
+                cropped_face / 255.0, bgr2rgb=True, float32=True
+            )
+            normalize(cropped_face_t, (0.5, 0.5, 0.5), (0.5, 0.5, 0.5), inplace=True)
+            cropped_face_t = cropped_face_t.unsqueeze(0).to(device)
+
+            try:
+                with torch.no_grad():
+                    output = codeformer_net(
+                        cropped_face_t, w=codeformer_fidelity, adain=True
+                    )[0]
+                    restored_face = tensor2img(output, rgb2bgr=True, min_max=(-1, 1))
+                del output
+                torch.cuda.empty_cache()
+            except RuntimeError as error:
+                print(f"Failed inference for CodeFormer: {error}")
+                restored_face = tensor2img(
+                    cropped_face_t, rgb2bgr=True, min_max=(-1, 1)
+                )
+
+            restored_face = restored_face.astype("uint8")
+            face_helper.add_restored_face(restored_face)
+
+        # paste_back
+        if not has_aligned:
+            # upsample the background
+            if bg_upsampler is not None:
+                # Now only support RealESRGAN for upsampling background
+                bg_img = bg_upsampler.enhance(img, outscale=upscale)[0]
+            else:
+                bg_img = None
+            face_helper.get_inverse_affine(None)
+            # paste each restored face to the input image
+            if face_upsample and face_upsampler is not None:
+                restored_img = face_helper.paste_faces_to_input_image(
+                    upsample_img=bg_img,
+                    draw_box=draw_box,
+                    face_upsampler=face_upsampler,
+                )
+            else:
+                restored_img = face_helper.paste_faces_to_input_image(
+                    upsample_img=bg_img, draw_box=draw_box
+                )
+        else:
+            restored_img = restored_face
+
+        # save restored img
+        save_path = f'output/out.png'
+        imwrite(restored_img, str(save_path))
+
+        restored_img = cv2.cvtColor(restored_img, cv2.COLOR_BGR2RGB)
+        return restored_img
+    except Exception as error:
+        print('Global exception', error)
+        return None, None
+
+
+title = "CodeFormer: Robust Face Restoration and Enhancement Network"
+
+description = r"""<center><img src='https://user-images.githubusercontent.com/14334509/189166076-94bb2cac-4f4e-40fb-a69f-66709e3d98f5.png' alt='CodeFormer logo'></center>
+<br>
+<b>Official Gradio demo</b> for <a href='https://github.com/sczhou/CodeFormer' target='_blank'><b>Towards Robust Blind Face Restoration with Codebook Lookup Transformer (NeurIPS 2022)</b></a><br>
+🔥 CodeFormer is a robust face restoration algorithm for old photos or AI-generated faces.<br>
+🤗 Try CodeFormer for improved stable-diffusion generation!<br>
+"""
+
+article = r"""
+If CodeFormer is helpful, please help to ⭐ the <a href='https://github.com/sczhou/CodeFormer' target='_blank'>Github Repo</a>. Thanks! 
+[![GitHub Stars](https://img.shields.io/github/stars/sczhou/CodeFormer?style=social)](https://github.com/sczhou/CodeFormer)
+
+---
+
+📝 **Citation**
+
+If our work is useful for your research, please consider citing:
+```bibtex
+@inproceedings{zhou2022codeformer,
+    author = {Zhou, Shangchen and Chan, Kelvin C.K. and Li, Chongyi and Loy, Chen Change},
+    title = {Towards Robust Blind Face Restoration with Codebook Lookup TransFormer},
+    booktitle = {NeurIPS},
+    year = {2022}
+}
+```
+
+📋 **License**
+
+This project is licensed under <a rel="license" href="https://github.com/sczhou/CodeFormer/blob/master/LICENSE">S-Lab License 1.0</a>. 
+Redistribution and use for non-commercial purposes should follow this license.
+
+📧 **Contact**
+
+If you have any questions, please feel free to reach me out at <b>shangchenzhou@gmail.com</b>.
+
+🤗 **Find Me:**
+<style type="text/css">
+td {
+    padding-right: 0px !important;
+}
+</style>
+
+<table>
+<tr>
+    <td><a href="https://github.com/sczhou"><img style="margin:-0.8em 0 2em 0" src="https://img.shields.io/github/followers/sczhou?style=social" alt="Github Follow"></a></td>
+    <td><a href="https://twitter.com/ShangchenZhou"><img style="margin:-0.8em 0 2em 0" src="https://img.shields.io/twitter/follow/ShangchenZhou?label=%40ShangchenZhou&style=social" alt="Twitter Follow"></a></td>
+</tr>
+</table>
+
+<center><img src='https://api.infinitescript.com/badgen/count?name=sczhou/CodeFormer&ltext=Visitors&color=6dc9aa' alt='visitors'></center>
+"""
+
+demo = gr.Interface(
+    inference, [
+        gr.Image(type="filepath", label="Input"),
+        gr.Checkbox(value=True, label="Pre_Face_Align"),
+        gr.Checkbox(value=True, label="Background_Enhance"),
+        gr.Checkbox(value=True, label="Face_Upsample"),
+        gr.Number(value=2, label="Rescaling_Factor (up to 4)"),
+        gr.Slider(0, 1, value=0.5, step=0.01, label='Codeformer_Fidelity (0 for better quality, 1 for better identity)')
+    ], [
+        gr.Image(type="numpy", label="Output").style(height='auto')
+    ],
+    title=title,
+    description=description,
+    article=article,       
+    examples=[
+        ['01.png', True, True, True, 2, 0.7],
+        ['02.jpg', True, True, True, 2, 0.7],
+        ['03.jpg', True, True, True, 2, 0.7],
+        ['04.jpg', True, True, True, 2, 0.1],
+        ['05.jpg', True, True, True, 2, 0.1],
+        ['06.png', False, True, True, 1, 0.5]
+      ])
+
+DEBUG = os.getenv('DEBUG') == '1'
+demo.queue(api_open=False, concurrency_count=2, max_size=10)
+demo.launch(debug=DEBUG,share=True)