Delete models/depth_pipeline.py

models/depth_pipeline.py

@@ -1,310 +0,0 @@
-# A reimplemented version in public environments by Xiao Fu and Mu Hu
-
-from typing import Any, Dict, Union
-
-import torch
-from torch.utils.data import DataLoader, TensorDataset
-import numpy as np
-from tqdm.auto import tqdm
-from PIL import Image
-from diffusers import (
-    DiffusionPipeline,
-    DDIMScheduler,
-    UNet2DConditionModel,
-    AutoencoderKL,
-)
-from diffusers.utils import BaseOutput
-from transformers import CLIPTextModel, CLIPTokenizer
-
-from utils.image_util import resize_max_res,chw2hwc,colorize_depth_maps
-from utils.colormap import kitti_colormap
-from utils.depth_ensemble import ensemble_depths
-from utils.batch_size import find_batch_size
-import cv2
-
-class DepthPipelineOutput(BaseOutput):
-    """
-    Output class for Marigold monocular depth prediction pipeline.
-
-    Args:
-        depth_np (`np.ndarray`):
-            Predicted depth map, with depth values in the range of [0, 1].
-        depth_colored (`PIL.Image.Image`):
-            Colorized depth map, with the shape of [3, H, W] and values in [0, 1].
-        uncertainty (`None` or `np.ndarray`):
-            Uncalibrated uncertainty(MAD, median absolute deviation) coming from ensembling.
-    """
-    depth_np: np.ndarray
-    depth_colored: Image.Image
-    uncertainty: Union[None, np.ndarray]
-
-class DepthEstimationPipeline(DiffusionPipeline):
-    # two hyper-parameters
-    latent_scale_factor = 0.18215
-
-    def __init__(self,
-                 unet:UNet2DConditionModel,
-                 vae:AutoencoderKL,
-                 scheduler:DDIMScheduler,
-                 text_encoder:CLIPTextModel,
-                 tokenizer:CLIPTokenizer,
-                 ):
-        super().__init__()
-            
-        self.register_modules(
-            unet=unet,
-            vae=vae,
-            scheduler=scheduler,
-            text_encoder=text_encoder,
-            tokenizer=tokenizer,
-        )
-        self.empty_text_embed = None  
-    
-    @torch.no_grad()
-    def __call__(self,
-                 input_image:Image,
-                 denosing_steps: int =10,
-                 ensemble_size: int =10,
-                 processing_res: int = 768,
-                 match_input_res:bool =True,
-                 batch_size:int = 0,
-                 color_map: str="Spectral",
-                 show_progress_bar:bool = True,
-                 ensemble_kwargs: Dict = None,
-                 ) -> DepthPipelineOutput:
-        
-        # inherit from thea Diffusion Pipeline
-        device = self.device
-        input_size = input_image.size
-        
-        # adjust the input resolution.
-        if not match_input_res:
-            assert (
-                processing_res is not None                
-            )," Value Error: `resize_output_back` is only valid with "
-        
-        assert processing_res >=0
-        assert denosing_steps >=1
-        assert ensemble_size >=1
-
-        # --------------- Image Processing ------------------------
-        # Resize image
-        if processing_res >0:
-            input_image = resize_max_res(
-                input_image, max_edge_resolution=processing_res
-            ) # resize image: for kitti is 231, 768
-        
-        # Convert the image to RGB, to 1. reomve the alpha channel.
-        input_image = input_image.convert("RGB")
-        image = np.array(input_image)
-
-        # Normalize RGB Values.
-        rgb = np.transpose(image,(2,0,1))
-        rgb_norm = rgb / 255.0 * 2.0 - 1.0 # [0, 255] -> [-1, 1]
-        rgb_norm = torch.from_numpy(rgb_norm).to(self.dtype)
-        rgb_norm = rgb_norm.to(device)
-
-        assert rgb_norm.min() >= -1.0 and rgb_norm.max() <= 1.0
-        
-        # ----------------- predicting depth -----------------
-        duplicated_rgb = torch.stack([rgb_norm] * ensemble_size)
-        single_rgb_dataset = TensorDataset(duplicated_rgb)
-        
-        # find the batch size
-        if batch_size>0:
-            _bs = batch_size
-        else:
-            _bs = 1
-
-        single_rgb_loader = DataLoader(single_rgb_dataset, batch_size=_bs, shuffle=False)
-        
-        # predicted the depth
-        depth_pred_ls = []
-        
-        if show_progress_bar:
-            iterable_bar = tqdm(
-                single_rgb_loader, desc=" " * 2 + "Inference batches", leave=False
-            )
-        else:
-            iterable_bar = single_rgb_loader
-        
-        for batch in iterable_bar:
-            (batched_image, )= batch  # here the image is still around 0-1
-
-            depth_pred_raw = self.single_infer(
-                input_rgb=batched_image,
-                num_inference_steps=denosing_steps,
-                show_pbar=show_progress_bar,
-            )
-            depth_pred_ls.append(depth_pred_raw.detach().clone())
-
-        depth_preds = torch.concat(depth_pred_ls, axis=0).squeeze() #(10,224,768)
-        torch.cuda.empty_cache()  # clear vram cache for ensembling
-
-        # ----------------- Test-time ensembling -----------------
-        if ensemble_size > 1:
-            depth_pred, pred_uncert = ensemble_depths(
-                depth_preds, **(ensemble_kwargs or {})
-            )
-        else:
-            depth_pred = depth_preds
-            pred_uncert = None
-
-        # ----------------- Post processing -----------------
-        # Scale prediction to [0, 1]
-        min_d = torch.min(depth_pred)
-        max_d = torch.max(depth_pred)
-        depth_pred = (depth_pred - min_d) / (max_d - min_d)
-        
-        # Convert to numpy
-        depth_pred = depth_pred.cpu().numpy().astype(np.float32)
-
-        # Resize back to original resolution
-        if match_input_res:
-            pred_img = Image.fromarray(depth_pred)
-            pred_img = pred_img.resize(input_size)
-            depth_pred = np.asarray(pred_img)
-
-        # Clip output range: current size is the original size
-        depth_pred = depth_pred.clip(0, 1)
-
-        # colorization using the KITTI Color Plan.
-        depth_pred_vis = depth_pred * 70
-        disp_vis = 400/(depth_pred_vis+1e-3)
-        disp_vis = disp_vis.clip(0,500)
-        
-        depth_color_pred =  kitti_colormap(disp_vis)
-    
-        # Colorize
-        depth_colored = colorize_depth_maps(
-            depth_pred, 0, 1, cmap=color_map
-        ).squeeze()  # [3, H, W], value in (0, 1)
-        depth_colored = (depth_colored * 255).astype(np.uint8)
-        depth_colored_hwc = chw2hwc(depth_colored)
-        depth_colored_img = Image.fromarray(depth_colored_hwc)
-
-        return DepthPipelineOutput(
-            depth_np = depth_pred,
-            depth_colored = depth_colored_img,
-            uncertainty=pred_uncert,
-        )
-    
-    def __encode_empty_text(self):
-        """
-        Encode text embedding for empty prompt
-        """
-        prompt = ""
-        text_inputs = self.tokenizer(
-            prompt,
-            padding="do_not_pad",
-            max_length=self.tokenizer.model_max_length,
-            truncation=True,
-            return_tensors="pt",
-        )
-        text_input_ids = text_inputs.input_ids.to(self.text_encoder.device) #[1,2]
-        # print(text_input_ids.shape)
-        self.empty_text_embed = self.text_encoder(text_input_ids)[0].to(self.dtype) #[1,2,1024]
-
-        
-    @torch.no_grad()
-    def single_infer(self,input_rgb:torch.Tensor,
-                     num_inference_steps:int,
-                     show_pbar:bool,):
-
-        device = input_rgb.device
-
-        # Set timesteps: inherit from the diffuison pipeline
-        self.scheduler.set_timesteps(num_inference_steps, device=device) # here the numbers of the steps is only 10.
-        timesteps = self.scheduler.timesteps  # [T]
-        
-        # encode image
-        rgb_latent = self.encode_RGB(input_rgb) # 1/8 Resolution with a channel nums of 4. 
-        
-        # Initial depth map (Guassian noise)
-        depth_latent = torch.randn(rgb_latent.shape, device=device, dtype=self.dtype)  # [B, 4, H/8, W/8]
-        
-        # Batched empty text embedding
-        if self.empty_text_embed is None:
-            self.__encode_empty_text()
-            
-        batch_empty_text_embed = self.empty_text_embed.repeat(
-            (rgb_latent.shape[0], 1, 1)
-        )  # [B, 2, 1024]
-
-
-        # Denoising loop
-        if show_pbar:
-            iterable = tqdm(
-                enumerate(timesteps),
-                total=len(timesteps),
-                leave=False,
-                desc=" " * 4 + "Diffusion denoising",
-            )
-        else:
-            iterable = enumerate(timesteps)
-
-        for i, t in iterable:
-            unet_input = torch.cat([rgb_latent, depth_latent], dim=1)
-
-            # predict the noise residual
-            noise_pred = self.unet(
-                unet_input, t, encoder_hidden_states=batch_empty_text_embed
-            ).sample  # [B, 4, h, w]
-
-            # compute the previous noisy sample x_t -> x_t-1
-            depth_latent = self.scheduler.step(noise_pred, t, depth_latent).prev_sample
-
-        torch.cuda.empty_cache()
-
-        depth = self.decode_depth(depth_latent)
-        
-        depth = torch.clip(depth, -1.0, 1.0)
-        depth = (depth + 1.0) / 2.0
-
-        return depth
-        
-    
-    def encode_RGB(self, rgb_in: torch.Tensor) -> torch.Tensor:
-        """
-        Encode RGB image into latent.
-
-        Args:
-            rgb_in (`torch.Tensor`):
-                Input RGB image to be encoded.
-
-        Returns:
-            `torch.Tensor`: Image latent.
-        """
-
-        # encode
-        h = self.vae.encoder(rgb_in)
-
-        moments = self.vae.quant_conv(h)
-        mean, logvar = torch.chunk(moments, 2, dim=1)
-        # scale latent
-        rgb_latent = mean * self.latent_scale_factor
-        
-        return rgb_latent
-    
-    def decode_depth(self, depth_latent: torch.Tensor) -> torch.Tensor:
-        """
-        Decode depth latent into depth map.
-
-        Args:
-            depth_latent (`torch.Tensor`):
-                Depth latent to be decoded.
-
-        Returns:
-            `torch.Tensor`: Decoded depth map.
-        """
-
-        # scale latent
-        depth_latent = depth_latent / self.latent_scale_factor
-        # decode
-        z = self.vae.post_quant_conv(depth_latent)
-        stacked = self.vae.decoder(z)
-        # mean of output channels
-
-        depth_mean = stacked.mean(dim=1, keepdim=True)
-        return depth_mean
-