174 lines
7.8 KiB
Python
174 lines
7.8 KiB
Python
import math, os, subprocess
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import cv2
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import hashlib
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import numpy as np
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import torch
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import gc
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import torchvision.transforms as T
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from einops import rearrange, repeat
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from PIL import Image
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from infer import InferenceHelper
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from midas.dpt_depth import DPTDepthModel
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from midas.transforms import Resize, NormalizeImage, PrepareForNet
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import torchvision.transforms.functional as TF
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from .general_utils import checksum
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from modules import lowvram, devices
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from modules.shared import opts
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DEBUG_MODE = opts.data.get("deforum_debug_mode_enabled", False)
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class MidasModel:
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_instance = None
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def __new__(cls, *args, **kwargs):
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keep_in_vram = kwargs.get('keep_in_vram', False)
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if not cls._instance:
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cls._instance = super().__new__(cls)
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cls._instance._initialize(*args, **kwargs)
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elif not keep_in_vram or not hasattr(cls._instance, 'midas_model'):
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cls._instance._initialize(*args, **kwargs)
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return cls._instance
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def _initialize(self, models_path, device, half_precision=True, keep_in_vram=False):
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self.keep_in_vram = keep_in_vram
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self.adabins_helper = None
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self.depth_min = 1000
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self.depth_max = -1000
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self.device = device
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model_file = os.path.join(models_path, 'dpt_large-midas-2f21e586.pt')
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if not os.path.exists(model_file):
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from basicsr.utils.download_util import load_file_from_url
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load_file_from_url(r"https://github.com/intel-isl/DPT/releases/download/1_0/dpt_large-midas-2f21e586.pt", models_path)
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if checksum(model_file) != "fcc4829e65d00eeed0a38e9001770676535d2e95c8a16965223aba094936e1316d569563552a852d471f310f83f597e8a238987a26a950d667815e08adaebc06":
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raise Exception(r"Error while downloading dpt_large-midas-2f21e586.pt. Please download from here: https://github.com/intel-isl/DPT/releases/download/1_0/dpt_large-midas-2f21e586.pt and place in: " + models_path)
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if not self.keep_in_vram or not hasattr(self, 'midas_model'):
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self.midas_model = DPTDepthModel(
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path=model_file,
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backbone="vitl16_384",
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non_negative=True,
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)
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normalization = NormalizeImage(mean=[0.5, 0.5, 0.5], std=[0.5, 0.5, 0.5])
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self.midas_transform = T.Compose([
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Resize(384, 384, resize_target=None, keep_aspect_ratio=True, ensure_multiple_of=32,
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resize_method="minimal", image_interpolation_method=cv2.INTER_CUBIC),
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normalization,
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PrepareForNet()
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])
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self.midas_model.eval().to(self.device, memory_format=torch.channels_last if self.device == torch.device("cuda") else None)
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if half_precision:
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self.midas_model = self.midas_model.half()
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def predict(self, prev_img_cv2, midas_weight, half_precision) -> torch.Tensor:
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w, h = prev_img_cv2.shape[1], prev_img_cv2.shape[0]
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img_pil = Image.fromarray(cv2.cvtColor(prev_img_cv2.astype(np.uint8), cv2.COLOR_RGB2BGR))
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use_adabins = midas_weight < 1.0 and self.adabins_helper is not None
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if use_adabins:
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MAX_ADABINS_AREA = 500000
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MIN_ADABINS_AREA = 448 * 448
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image_pil_area = w * h
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scale = math.sqrt(MIN_ADABINS_AREA) / math.sqrt(image_pil_area)
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depth_input = img_pil.resize((int(w * scale), int(h * scale)), Image.LANCZOS if image_pil_area > MAX_ADABINS_AREA else Image.BICUBIC)
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try:
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with torch.no_grad():
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_, adabins_depth = self.adabins_helper.predict_pil(depth_input)
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adabins_depth = adabins_depth.squeeze().cpu().numpy()
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if image_pil_area != MAX_ADABINS_AREA:
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adabins_depth = TF.resize(torch.from_numpy(adabins_depth),
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torch.Size([h, w]),
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interpolation=TF.InterpolationMode.BICUBIC).numpy()
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except:
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print(" exception encountered, falling back to pure MiDaS")
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use_adabins = False
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torch.cuda.empty_cache()
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if self.midas_model is not None:
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img_midas = prev_img_cv2.astype(np.float32) / 255.0
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img_midas_input = self.midas_transform({"image": img_midas})["image"]
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sample = torch.from_numpy(img_midas_input).float().to(self.device).unsqueeze(0)
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if self.device.type == "cuda" or self.device.type == "mps":
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sample = sample.to(memory_format=torch.channels_last)
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if half_precision:
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sample = sample.half()
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with torch.no_grad():
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midas_depth = self.midas_model.forward(sample)
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midas_depth = torch.nn.functional.interpolate(
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midas_depth.unsqueeze(1),
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size=img_midas.shape[:2],
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mode="bicubic",
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align_corners=False,
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).squeeze().cpu().numpy()
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torch.cuda.empty_cache()
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midas_depth = np.subtract(50.0, midas_depth) / 19.0
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depth_map = (midas_depth * midas_weight + adabins_depth * (1.0 - midas_weight)) if use_adabins else midas_depth
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depth_tensor = torch.from_numpy(np.expand_dims(depth_map, axis=0)).squeeze().to(self.device)
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else:
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depth_tensor = torch.ones((h, w), device=self.device)
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return depth_tensor
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def to_image(self, depth: torch.Tensor):
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depth = depth.cpu().numpy()
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depth = np.expand_dims(depth, axis=0) if len(depth.shape) == 2 else depth
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self.depth_min = min(self.depth_min, depth.min())
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self.depth_max = max(self.depth_max, depth.max())
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denom = max(1e-8, self.depth_max - self.depth_min)
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temp = rearrange((depth - self.depth_min) / denom * 255, 'c h w -> h w c')
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temp = repeat(temp, 'h w 1 -> h w c', c=3)
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return Image.fromarray(temp.astype(np.uint8))
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def save(self, filename: str, depth: torch.Tensor):
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self.to_image(depth).save(filename)
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def to(self, device):
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self.device = device
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self.midas_model.to(device)
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if self.adabins_helper is not None:
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self.adabins_helper.to(device)
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gc.collect()
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torch.cuda.empty_cache()
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def delete_model(self):
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del self.midas_model
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torch.cuda.empty_cache()
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class AdaBinsModel:
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_instance = None
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def __new__(cls, *args, **kwargs):
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keep_in_vram = kwargs.get('keep_in_vram', True)
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if cls._instance is None or not keep_in_vram:
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cls._instance = super().__new__(cls)
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cls._instance._initialize(*args, **kwargs)
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return cls._instance
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def _initialize(self, models_path, keep_in_vram=False):
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self.device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
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self.keep_in_vram = keep_in_vram
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if self.keep_in_vram or not hasattr(self, 'adabins_helper'):
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if not os.path.exists(os.path.join(models_path, 'AdaBins_nyu.pt')):
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from basicsr.utils.download_util import load_file_from_url
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load_file_from_url(
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r"https://cloudflare-ipfs.com/ipfs/Qmd2mMnDLWePKmgfS8m6ntAg4nhV5VkUyAydYBp8cWWeB7/AdaBins_nyu.pt",
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models_path)
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if checksum(os.path.join(models_path, 'AdaBins_nyu.pt')) != "643db9785c663aca72f66739427642726b03acc6c4c1d3755a4587aa2239962746410d63722d87b49fc73581dbc98ed8e3f7e996ff7b9c0d56d0fbc98e23e41a":
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raise Exception(
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r"Error while downloading AdaBins_nyu.pt. Please download from here: https://drive.google.com/file/d/1lvyZZbC9NLcS8a__YPcUP7rDiIpbRpoF and place in: " + models_path)
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self.adabins_helper = InferenceHelper(models_path=models_path, dataset='nyu', device=self.device)
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def delete_model(self):
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del self.adabins_helper
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torch.cuda.empty_cache()
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devices.torch_gc() |