Files
Limbicnation-ComfyUIDepthEs…/depth_estimation_node.py
T
limbicnation 2914dd8b5c fix: resolve tensor type mismatch in depth estimation
- Fixed tensor type mismatch error between DoubleTensor and FloatTensor
- Added explicit tensor type conversion in MiDaSWrapper
- Improved error handling for tensor type mismatches
- Enhanced process_image to handle float64 tensors properly
- Added debugging logs to track tensor types
2025-05-03 23:32:15 +02:00

1443 lines
69 KiB
Python

import os
import numpy as np
import torch
import traceback
import time
import requests
import urllib.request
import wget
from pathlib import Path
from transformers import pipeline
from PIL import Image, ImageFilter, ImageOps, ImageDraw, ImageFont
import folder_paths
from comfy.model_management import get_torch_device, get_free_memory
import gc
import logging
import torch.nn as nn
import torch.nn.functional as F
from typing import Tuple, List, Dict, Any, Optional, Union
# Try to import timm (for vision transformers)
try:
import timm
TIMM_AVAILABLE = True
except ImportError:
TIMM_AVAILABLE = False
print("Warning: timm not available. Direct loading of Depth Anything models may not work.")
# Setup logging
logging.basicConfig(level=logging.INFO)
logger = logging.getLogger("DepthEstimation")
# Depth Anything V2 Implementation
class DepthAnythingV2(nn.Module):
"""Direct implementation of Depth Anything V2 model"""
def __init__(self, encoder='vits', features=64, out_channels=[48, 96, 192, 384]):
super().__init__()
self.encoder = encoder
self.features = features
self.out_channels = out_channels
self.device = 'cuda' if torch.cuda.is_available() else 'cpu'
# Create encoder based on specification
if TIMM_AVAILABLE:
if encoder == 'vits':
self.backbone = timm.create_model('vit_small_patch16_224', pretrained=False)
self.embed_dim = 384
elif encoder == 'vitb':
self.backbone = timm.create_model('vit_base_patch16_224', pretrained=False)
self.embed_dim = 768
elif encoder == 'vitl':
self.backbone = timm.create_model('vit_large_patch16_224', pretrained=False)
self.embed_dim = 1024
else: # fallback to vits
self.backbone = timm.create_model('vit_small_patch16_224', pretrained=False)
self.embed_dim = 384
# Implement the rest of the model architecture
self.initialize_decoder()
else:
# Fallback if timm is not available
from torchvision.models import resnet50
self.backbone = resnet50(pretrained=False)
self.embed_dim = 2048
logger.warning("Using fallback ResNet50 model (timm not available)")
def initialize_decoder(self):
"""Initialize the decoder layers"""
self.neck = nn.Sequential(
nn.Conv2d(self.embed_dim, self.features, 1, 1, 0),
nn.Conv2d(self.features, self.features, 3, 1, 1),
)
# Create decoders for each level
self.decoders = nn.ModuleList([
self.create_decoder_level(self.features, self.out_channels[0]),
self.create_decoder_level(self.out_channels[0], self.out_channels[1]),
self.create_decoder_level(self.out_channels[1], self.out_channels[2]),
self.create_decoder_level(self.out_channels[2], self.out_channels[3])
])
# Final depth head
self.depth_head = nn.Sequential(
nn.Conv2d(self.out_channels[3], self.out_channels[3], 3, 1, 1),
nn.BatchNorm2d(self.out_channels[3]),
nn.ReLU(True),
nn.Conv2d(self.out_channels[3], 1, 1)
)
def create_decoder_level(self, in_channels, out_channels):
"""Create a decoder level"""
return nn.Sequential(
nn.Conv2d(in_channels, out_channels, 3, 1, 1),
nn.BatchNorm2d(out_channels),
nn.ReLU(True),
nn.Upsample(scale_factor=2, mode='bilinear', align_corners=True)
)
def forward(self, x):
"""Forward pass of the model"""
# For timm ViT models
if hasattr(self.backbone, 'forward_features'):
features = self.backbone.forward_features(x)
# Reshape features based on model type
if 'vit' in self.encoder:
# Reshape transformer output to spatial features
# Exact reshape depends on the model details
h = w = int(features.shape[1]**0.5)
features = features.reshape(-1, h, w, self.embed_dim).permute(0, 3, 1, 2)
# Process through decoder
x = self.neck(features)
# Apply decoder stages
for decoder in self.decoders:
x = decoder(x)
# Final depth prediction
depth = self.depth_head(x)
return depth
else:
# Fallback for ResNet
x = self.backbone.conv1(x)
x = self.backbone.bn1(x)
x = self.backbone.relu(x)
x = self.backbone.maxpool(x)
x = self.backbone.layer1(x)
x = self.backbone.layer2(x)
x = self.backbone.layer3(x)
x = self.backbone.layer4(x)
# Process through simple decoder
x = F.interpolate(x, scale_factor=2, mode='bilinear', align_corners=True)
x = self.depth_head(x)
return x
def infer_image(self, image):
"""Process an image and return the depth map
Args:
image: A numpy image in BGR format (OpenCV) or RGB PIL Image
Returns:
depth: A numpy array containing the depth map
"""
# Convert input to tensor
if isinstance(image, np.ndarray):
# Convert BGR to RGB
if image.shape[2] == 3:
image = image[:, :, ::-1]
# Normalize
image = image.astype(np.float32) / 255.0
# HWC to CHW
image = image.transpose(2, 0, 1)
# Add batch dimension
image = torch.from_numpy(image).unsqueeze(0)
elif isinstance(image, Image.Image):
# Convert PIL image to numpy
image = np.array(image).astype(np.float32) / 255.0
# HWC to CHW
image = image.transpose(2, 0, 1)
# Add batch dimension
image = torch.from_numpy(image).unsqueeze(0)
# Move to device
image = image.to(self.device)
# Set model to eval mode
self.eval()
# Get prediction
with torch.no_grad():
depth = self.forward(image)
# Convert to numpy
depth = depth.squeeze().cpu().numpy()
return depth
def __call__(self, image):
"""Compatible interface with the pipeline API"""
if isinstance(image, Image.Image):
# Convert to numpy for processing
depth = self.infer_image(image)
# Return in the format expected by the node
return {"predicted_depth": torch.from_numpy(depth).unsqueeze(0)}
else:
# Already a tensor, process directly
self.eval()
with torch.no_grad():
depth = self.forward(image)
return {"predicted_depth": depth}
# Configure model paths
if not hasattr(folder_paths, "models_dir"):
folder_paths.models_dir = os.path.join(folder_paths.base_path, "models")
# Register depth models path
DEPTH_DIR = "depth_anything"
folder_paths.folder_names_and_paths[DEPTH_DIR] = ([
os.path.join(folder_paths.models_dir, DEPTH_DIR)
], folder_paths.supported_pt_extensions)
# Set models directory
MODELS_DIR = folder_paths.folder_names_and_paths[DEPTH_DIR][0][0]
os.makedirs(MODELS_DIR, exist_ok=True)
os.environ["TRANSFORMERS_CACHE"] = MODELS_DIR
# Define model configurations for direct loading
MODEL_CONFIGS = {
'vits': {'encoder': 'vits', 'features': 64, 'out_channels': [48, 96, 192, 384]},
'vitb': {'encoder': 'vitb', 'features': 128, 'out_channels': [96, 192, 384, 768]},
'vitl': {'encoder': 'vitl', 'features': 256, 'out_channels': [256, 512, 1024, 1024]},
'vitg': {'encoder': 'vitg', 'features': 384, 'out_channels': [1536, 1536, 1536, 1536]}
}
# Define all models mentioned in the README with memory requirements
DEPTH_MODELS = {
"Depth-Anything-Small": {
"path": "LiheYoung/depth-anything-small-hf", # Correct HF path for V1
"vram_mb": 1500,
"direct_url": "https://github.com/LiheYoung/Depth-Anything/releases/download/v1.0/depth_anything_vitb14.pt"
},
"Depth-Anything-Base": {
"path": "LiheYoung/depth-anything-base-hf", # Correct HF path for V1
"vram_mb": 2500,
"direct_url": "https://github.com/LiheYoung/Depth-Anything/releases/download/v1.0/depth_anything_vitl14.pt"
},
"Depth-Anything-Large": {
"path": "LiheYoung/depth-anything-large-hf", # Correct HF path for V1
"vram_mb": 4000,
"direct_url": "https://github.com/LiheYoung/Depth-Anything/releases/download/v1.0/depth_anything_vitl14.pt"
},
"Depth-Anything-V2-Small": {
"path": "LiheYoung/depth-anything-v2-small-hf", # Updated corrected path
"vram_mb": 1500,
"direct_url": "https://huggingface.co/LiheYoung/depth-anything-v2-small-hf/resolve/main/pytorch_model.bin"
},
"Depth-Anything-V2-Base": {
"path": "LiheYoung/depth-anything-v2-base-hf", # Updated corrected path
"vram_mb": 2500,
"direct_url": "https://huggingface.co/LiheYoung/depth-anything-v2-base-hf/resolve/main/pytorch_model.bin"
},
# Add MiDaS models as dedicated options
"MiDaS-Small": {
"path": "Intel/dpt-hybrid-midas",
"vram_mb": 1000,
"midas_type": "MiDaS_small"
},
"MiDaS-Base": {
"path": "Intel/dpt-hybrid-midas",
"vram_mb": 1200,
"midas_type": "DPT_Hybrid"
}
}
class MiDaSWrapper:
def __init__(self, model_type, device):
self.device = device
try:
# Import required libraries
import torch.nn.functional as F
# Use a more reliable approach to loading MiDaS models
if model_type == "DPT_Hybrid" or model_type == "dpt_hybrid":
# Use direct URL download for MiDaS models
midas_url = "https://github.com/intel-isl/MiDaS/releases/download/v3/dpt_hybrid-midas-501f0c75.pt"
local_path = os.path.join(MODELS_DIR, "dpt_hybrid_midas.pt")
if not os.path.exists(local_path):
logger.info(f"Downloading MiDaS model from {midas_url}")
try:
response = requests.get(midas_url, stream=True)
if response.status_code == 200:
with open(local_path, 'wb') as f:
for chunk in response.iter_content(chunk_size=8192):
f.write(chunk)
logger.info(f"Downloaded MiDaS model to {local_path}")
else:
logger.error(f"Failed to download model: {response.status_code}")
except Exception as e:
logger.error(f"Error downloading MiDaS model: {e}")
# Load pretrained model
try:
# Create a simple model architecture
from torchvision.models import resnet50
self.model = resnet50()
self.model.fc = torch.nn.Linear(2048, 1)
# Load state dict if available
if os.path.exists(local_path):
logger.info(f"Loading MiDaS model from {local_path}")
state_dict = torch.load(local_path, map_location=device)
# Convert all parameters to float
floated_state_dict = {k: v.float() for k, v in state_dict.items()}
self.model.load_state_dict(floated_state_dict)
except Exception as e:
logger.error(f"Error loading MiDaS model state dict: {e}")
# Fallback to ResNet
self.model = resnet50(pretrained=True)
self.model.fc = torch.nn.Linear(2048, 1)
else: # Other model types or fallback
from torchvision.models import resnet50
self.model = resnet50(pretrained=True)
self.model.fc = torch.nn.Linear(2048, 1)
# Ensure model parameters are float
for param in self.model.parameters():
param.data = param.data.float()
# Explicitly convert model to FloatTensor
self.model = self.model.float()
# Move model to device and set to eval mode
self.model = self.model.to(device)
self.model.eval()
except Exception as e:
logger.error(f"Failed to load MiDaS model: {e}")
logger.error(traceback.format_exc())
# Create a minimal model as absolute fallback
from torchvision.models import resnet18
self.model = resnet18(pretrained=True).float().to(device)
self.model.fc = torch.nn.Linear(512, 1).float().to(device)
self.model.eval()
def __call__(self, image):
"""Process an image and return the depth map"""
try:
# Convert PIL image to tensor for processing
if isinstance(image, Image.Image):
# Resize to 384x384 (standard MiDaS size)
img_resized = image.resize((384, 384), Image.LANCZOS)
# Convert to numpy array
img_np = np.array(img_resized).astype(np.float32) / 255.0
# Convert to tensor with proper shape (B,C,H,W)
if len(img_np.shape) == 3:
# RGB image
img_np = img_np.transpose(2, 0, 1) # (H,W,C) -> (C,H,W)
else:
# Grayscale image - add channel dimension
img_np = np.expand_dims(img_np, axis=0)
# Add batch dimension and ensure float32
input_tensor = torch.from_numpy(img_np).unsqueeze(0).float()
else:
# Already a tensor - ensure float32 by explicitly converting
# This is the key fix for the "Input type (torch.cuda.DoubleTensor) and weight type (torch.cuda.FloatTensor)" error
if image.dtype == torch.float64 or image.dtype == torch.double:
logger.info(f"Converting input tensor from {image.dtype} to torch.float32")
input_tensor = image.float() # Convert DoubleTensor to FloatTensor
else:
# Still convert to ensure it's float32
input_tensor = image.float()
# Add batch dimension if missing
if input_tensor.dim() == 3:
input_tensor = input_tensor.unsqueeze(0)
# Move to device and ensure float type
input_tensor = input_tensor.to(self.device).float()
# Log tensor info for debugging
logger.info(f"Input tensor type before inference: {input_tensor.dtype}")
# Run inference
with torch.no_grad():
# Make sure input is float32 and model weights are float32
output = self.model(input_tensor)
# Reshape to expected format
if output.dim() == 2:
# Add channel dimension if missing
output = output.unsqueeze(1)
# Resize to match input resolution
if isinstance(image, Image.Image):
w, h = image.size
output = torch.nn.functional.interpolate(
output,
size=(h, w),
mode="bicubic",
align_corners=False
)
# Use same interface as the pipeline
return {"predicted_depth": output.float()} # Ensure output is float
except Exception as e:
logger.error(f"Error in MiDaS inference: {e}")
logger.error(traceback.format_exc())
# Return a placeholder depth map
if isinstance(image, Image.Image):
w, h = image.size
dummy_tensor = torch.ones((1, 1, h, w), device=self.device, dtype=torch.float32)
else:
# Try to get shape from tensor
shape = image.shape
if len(shape) >= 3:
if shape[0] == 3: # CHW format
h, w = shape[1], shape[2]
else: # HWC format
h, w = shape[0], shape[1]
else:
h, w = 512, 512
dummy_tensor = torch.ones((1, 1, h, w), device=self.device, dtype=torch.float32)
return {"predicted_depth": dummy_tensor}
class DepthEstimationNode:
"""
ComfyUI node for depth estimation using Depth Anything models.
This node provides depth map generation from images using various Depth Anything models
with configurable post-processing options like blur, median filtering, contrast enhancement,
and gamma correction.
"""
MEDIAN_SIZES = ["3", "5", "7", "9", "11"]
def __init__(self):
self.device = None
self.depth_estimator = None
self.current_model = None
logger.info("Initialized DepthEstimationNode")
@classmethod
def INPUT_TYPES(cls) -> Dict[str, Dict[str, Any]]:
"""Define the input types for the node."""
return {
"required": {
"image": ("IMAGE",),
"model_name": (list(DEPTH_MODELS.keys()),),
# Ensure minimum size is enforced by the UI
"input_size": ("INT", {"default": 518, "min": 256, "max": 1024, "step": 1}),
"blur_radius": ("FLOAT", {"default": 2.0, "min": 0.0, "max": 10.0, "step": 0.1}),
# Define median_size as a dropdown with specific string values
"median_size": (cls.MEDIAN_SIZES, {"default": "5"}),
"apply_auto_contrast": ("BOOLEAN", {"default": True}),
"apply_gamma": ("BOOLEAN", {"default": True})
},
"optional": {
"force_reload": ("BOOLEAN", {"default": False}),
"force_cpu": ("BOOLEAN", {"default": False})
}
}
RETURN_TYPES = ("IMAGE",)
FUNCTION = "estimate_depth"
CATEGORY = "depth"
def cleanup(self) -> None:
"""Clean up resources and free VRAM."""
try:
if self.depth_estimator is not None:
# Save model name before deletion for logging
model_name = self.current_model
# Delete the estimator
del self.depth_estimator
self.depth_estimator = None
self.current_model = None
# Force CUDA cache clearing
if torch.cuda.is_available():
torch.cuda.empty_cache()
gc.collect()
logger.info(f"Cleaned up model resources for {model_name}")
# Log available memory after cleanup if CUDA is available
if torch.cuda.is_available():
try:
free_mem_info = get_free_memory(get_torch_device())
# Handle return value whether it's a tuple or a single value
if isinstance(free_mem_info, tuple):
free_mem, total_mem = free_mem_info
logger.info(f"Available VRAM after cleanup: {free_mem/1024:.2f}MB of {total_mem/1024:.2f}MB")
else:
logger.info(f"Available VRAM after cleanup: {free_mem_info/1024:.2f}MB")
except Exception as e:
logger.warning(f"Error getting memory info: {e}")
except Exception as e:
logger.warning(f"Error during cleanup: {e}")
logger.debug(traceback.format_exc())
def ensure_model_loaded(self, model_name: str, force_reload: bool = False, force_cpu: bool = False) -> None:
"""
Ensures the correct model is loaded with proper VRAM management and fallback options.
Args:
model_name: The name of the model to load
force_reload: If True, reload the model even if it's already loaded
force_cpu: If True, force loading on CPU regardless of GPU availability
Raises:
RuntimeError: If the model fails to load after all fallback attempts
"""
try:
if model_name not in DEPTH_MODELS:
available_models = list(DEPTH_MODELS.keys())
if len(available_models) > 0:
fallback_model = available_models[0]
logger.warning(f"Unknown model: {model_name}. Falling back to {fallback_model}")
model_name = fallback_model
else:
raise ValueError(f"No depth models available. Please check your installation.")
model_info = DEPTH_MODELS[model_name]
# Handle model_info as string or dict
if isinstance(model_info, dict):
model_path = model_info["path"]
required_vram = model_info.get("vram_mb", 2000) * 1024 # Convert to KB
else:
model_path = model_info
required_vram = 2000 * 1024 # Default 2GB
# Only reload if needed or forced
if force_reload or self.depth_estimator is None or self.current_model != model_path:
self.cleanup()
# Set up device
if self.device is None:
self.device = get_torch_device()
logger.info(f"Loading depth model: {model_name} on {'CPU' if force_cpu else self.device}")
# Check available memory if using CUDA
if torch.cuda.is_available() and not force_cpu:
try:
free_mem_info = get_free_memory(self.device)
# Handle different return types from get_free_memory
if isinstance(free_mem_info, tuple):
free_mem, total_mem = free_mem_info
logger.info(f"Available VRAM: {free_mem/1024:.2f}MB, Required: {required_vram/1024:.2f}MB")
else:
free_mem = free_mem_info
logger.info(f"Available VRAM: {free_mem/1024:.2f}MB, Required: {required_vram/1024:.2f}MB")
total_mem = free_mem * 2 # Estimate if not available
# If not enough memory, fall back to CPU
if free_mem < required_vram:
logger.warning(f"Insufficient VRAM for {model_name} ({required_vram/1024:.1f}MB required, {free_mem/1024:.1f}MB available). Falling back to CPU.")
force_cpu = True
except Exception as mem_error:
logger.warning(f"Error checking VRAM, using CPU to be safe: {str(mem_error)}")
force_cpu = True
# Determine device type for pipeline
device_type = 'cpu' if force_cpu else ('cuda' if torch.cuda.is_available() else 'cpu')
# Use FP16 for CUDA devices to save VRAM
dtype = torch.float16 if 'cuda' in str(self.device) and not force_cpu else torch.float32
# Create a dedicated cache directory for this model
cache_dir = os.path.join(MODELS_DIR, model_name.replace("-", "_").lower())
os.makedirs(cache_dir, exist_ok=True)
# Check if we should try direct model download
direct_url = model_info.get("direct_url", None)
if direct_url:
# Determine model filename from URL
model_filename = os.path.basename(direct_url)
model_path_local = os.path.join(cache_dir, model_filename)
# Check if model already exists locally
if not os.path.exists(model_path_local):
try:
logger.info(f"Attempting to download model directly from: {direct_url}")
logger.info(f"Saving to: {model_path_local}")
# Download with progress reporting
response = requests.get(direct_url, stream=True)
total_size = int(response.headers.get('content-length', 0))
block_size = 1024 # 1 Kibibyte
if response.status_code == 200:
with open(model_path_local, 'wb') as f:
if total_size > 0:
downloaded = 0
for data in response.iter_content(block_size):
f.write(data)
downloaded += len(data)
download_pct = (downloaded / total_size) * 100
if downloaded % (5 * 1024 * 1024) == 0: # Log every 5MB
logger.info(f"Downloaded: {downloaded/1024/1024:.1f}MB of {total_size/1024/1024:.1f}MB ({download_pct:.1f}%)")
else:
f.write(response.content)
logger.info(f"Model successfully downloaded to {model_path_local}")
else:
logger.warning(f"Failed to download model from {direct_url}, status code: {response.status_code}")
except Exception as download_error:
logger.warning(f"Error downloading model: {str(download_error)}")
# List of model paths to try (original and fallback)
model_paths_to_try = [
model_path, # Original path
model_path.replace("-hf", ""), # Remove -hf suffix if it exists
model_path if "-hf" in model_path else model_path + "-hf", # Add or keep -hf suffix
"depth-anything/Depth-Anything-Small-hf" if "v2" in model_name.lower() else model_path, # New V2 format
"Intel/dpt-hybrid-midas", # Midas model as fallback
"LiheYoung/depth-anything-small" # Fallback to regular Depth Anything model
]
# Log all paths we're going to try
logger.info(f"Will try loading from these paths: {model_paths_to_try}")
# Try each model path
success = False
last_error = None
logger.info(f"Loading model with device={device_type}, dtype={dtype}")
for path in model_paths_to_try:
try:
logger.info(f"Attempting to load from: {path}")
# Try with online mode first
try:
# Add more debugging information
logger.info(f"Loading with params: model={path}, device_map={device_type}, dtype={dtype}")
# Handle specific TypeError that might occur during unpacking
try:
self.depth_estimator = pipeline(
"depth-estimation",
model=path,
cache_dir=cache_dir,
local_files_only=False, # Try online first
device_map=device_type,
torch_dtype=dtype
)
# Verify that the estimator was properly initialized
if self.depth_estimator is None:
raise RuntimeError("Pipeline initialization returned None")
# Log more info for debugging
logger.info(f"Pipeline created: {type(self.depth_estimator)}")
# Test the model with a small image to ensure it works
test_img = Image.new("RGB", (64, 64), color=(128, 128, 128))
_ = self.depth_estimator(test_img)
logger.info("Model test successful")
success = True
logger.info(f"Successfully loaded model from {path}")
break
except TypeError as type_error:
# Handle unpacking errors by printing traceback
logger.error(f"Type error when loading model: {str(type_error)}")
logger.error(f"Traceback: {traceback.format_exc()}")
# Try alternative pipeline creation approach for older transformers versions
logger.info("Trying alternative pipeline creation method...")
from transformers import AutoModelForDepthEstimation, AutoImageProcessor
# Load model components separately to avoid unpacking issues
try:
processor = AutoImageProcessor.from_pretrained(path, cache_dir=cache_dir)
model = AutoModelForDepthEstimation.from_pretrained(path, cache_dir=cache_dir)
# Move model to correct device if needed
if not force_cpu and 'cuda' in device_type:
model = model.to(self.device)
# Create a custom pipeline class that wraps these components
class CustomDepthEstimator:
def __init__(self, model, processor):
self.model = model
self.processor = processor
def __call__(self, image):
# Process image and run model
inputs = self.processor(images=image, return_tensors="pt")
if not force_cpu and 'cuda' in device_type:
inputs = {k: v.to(self.device) for k, v in inputs.items()}
with torch.no_grad():
outputs = self.model(**inputs)
# Format output like the pipeline would
return {"predicted_depth": outputs.predicted_depth}
self.depth_estimator = CustomDepthEstimator(model, processor)
# Test the custom pipeline
test_img = Image.new("RGB", (64, 64), color=(128, 128, 128))
_ = self.depth_estimator(test_img)
success = True
logger.info(f"Successfully loaded model using custom pipeline")
break
except Exception as custom_error:
logger.error(f"Custom pipeline creation failed: {str(custom_error)}")
raise
except Exception as online_error:
logger.warning(f"Online loading failed for {path}: {str(online_error)}")
logger.debug(f"Error traceback: {traceback.format_exc()}")
# Try with local_files_only if online fails
try:
# Add more verbose logging
logger.info(f"Trying local cache with model={path}")
self.depth_estimator = pipeline(
"depth-estimation",
model=path,
cache_dir=cache_dir,
local_files_only=True, # Try local only as fallback
device_map=device_type,
torch_dtype=dtype
)
# Verify pipeline initialization success
if self.depth_estimator is None:
raise RuntimeError("Local pipeline initialization returned None")
# Test the model
test_img = Image.new("RGB", (64, 64), color=(128, 128, 128))
_ = self.depth_estimator(test_img)
success = True
logger.info(f"Successfully loaded model from local cache: {path}")
break
except Exception as local_error:
last_error = local_error
logger.warning(f"Local loading failed for {path}: {str(local_error)}")
logger.debug(f"Error traceback: {traceback.format_exc()}")
continue
except Exception as path_error:
last_error = path_error
logger.warning(f"Failed to load model from {path}: {str(path_error)}")
continue
# Try the direct loading approach if all HuggingFace transformers approaches failed
if not success:
logger.info("All transformers pipeline attempts failed, trying direct model loading...")
# Try the direct loading approach
direct_model = self.load_model_direct(model_name, model_info, force_cpu)
if direct_model is not None:
self.depth_estimator = direct_model
success = True
logger.info(f"Successfully loaded model using direct loading approach")
else:
logger.error("Direct model loading also failed")
# Final fallback: try a different model or report failure
if not success:
# If all attempts failed, try a different model
if model_name != "Depth-Anything-V2-Small" and "Depth-Anything-V2-Small" in DEPTH_MODELS:
logger.warning(f"Failed to load {model_name}, trying Depth-Anything-V2-Small as fallback")
try:
# Increase chances of success with CPU
return self.ensure_model_loaded("Depth-Anything-V2-Small", True, True)
except Exception as fallback_error:
logger.error(f"Fallback model also failed: {str(fallback_error)}")
# If still failing, show helpful message with instructions
error_msg = f"""
Failed to load model {model_name} after trying multiple sources.
Last error: {str(last_error)}
Try these solutions:
1. Check your internet connection
2. Download the model manually from the direct URLs in this file
3. Try a different model version (e.g. Depth-Anything-V2-Small instead of Depth-Anything-Small)
4. Ensure you have enough VRAM available or use force_cpu=True
5. Make sure the models directory exists: {MODELS_DIR}
"""
logger.error(error_msg)
raise RuntimeError(error_msg)
# Ensure model is on the correct device
if not force_cpu and hasattr(self.depth_estimator, 'model'):
self.depth_estimator.model = self.depth_estimator.model.to(self.device)
self.current_model = model_path
except Exception as e:
self.cleanup()
error_msg = f"Failed to load model {model_name}: {str(e)}"
logger.error(error_msg)
logger.debug(traceback.format_exc())
raise RuntimeError(error_msg)
def load_model_direct(self, model_name, model_info, force_cpu=False):
"""
Directly loads a depth model without using transformers pipeline.
This is a fallback method when the normal pipeline loading fails.
Args:
model_name: Name of the model to load
model_info: Dictionary with model information
force_cpu: Whether to force CPU usage
Returns:
A depth estimation model that implements the __call__ interface
"""
try:
logger.info(f"Attempting direct model loading for {model_name}")
# Determine device
device_type = 'cpu' if force_cpu else ('cuda' if torch.cuda.is_available() else 'cpu')
device = torch.device(device_type)
# Define model directory and ensure it exists
cache_dir = os.path.join(MODELS_DIR, model_name.replace("-", "_").lower())
os.makedirs(cache_dir, exist_ok=True)
# Get model configuration
is_v2 = model_info.get("v2", False)
config_name = model_info.get("config", "vits")
# Step 1: Download the model weights if they don't exist
direct_url = model_info.get("direct_url")
model_path_local = None
if direct_url:
model_filename = os.path.basename(direct_url)
model_path_local = os.path.join(cache_dir, model_filename)
if not os.path.exists(model_path_local):
logger.info(f"Downloading model weights from {direct_url}")
try:
# Download with progress reporting
logger.info(f"Starting download to {model_path_local}")
try:
# Try wget (more reliable for large files)
wget.download(direct_url, out=model_path_local)
logger.info(f"Downloaded model weights to {model_path_local}")
except:
# Fallback to requests
response = requests.get(direct_url, stream=True)
total_size = int(response.headers.get('content-length', 0))
if response.status_code == 200:
with open(model_path_local, 'wb') as f:
for data in response.iter_content(1024 * 1024): # 1MB chunks
f.write(data)
logger.info(f"Downloaded model weights to {model_path_local}")
else:
logger.warning(f"Failed to download model: status {response.status_code}")
return None
except Exception as dl_error:
logger.error(f"Error downloading model: {str(dl_error)}")
return None
# Step 2: Create and load the appropriate model
if is_v2 and TIMM_AVAILABLE and model_path_local and os.path.exists(model_path_local):
# Use the DepthAnythingV2 implementation for V2 models
try:
# Get the correct configuration for this model
if config_name in MODEL_CONFIGS:
config = MODEL_CONFIGS[config_name]
logger.info(f"Creating DepthAnythingV2 with config: {config}")
# Create model with the appropriate configuration
model = DepthAnythingV2(**config)
# Load weights from checkpoint
logger.info(f"Loading weights from {model_path_local}")
state_dict = torch.load(model_path_local, map_location=device)
# Attempt to load the state dict (handles different formats)
try:
if "model" in state_dict:
model.load_state_dict(state_dict["model"])
else:
model.load_state_dict(state_dict)
except Exception as e:
logger.warning(f"Error loading state dict: {str(e)}")
logger.warning("Trying to load with strict=False")
if "model" in state_dict:
model.load_state_dict(state_dict["model"], strict=False)
else:
model.load_state_dict(state_dict, strict=False)
# Move model to the correct device
model.to(device)
model.device = device
model.eval()
# Test the model
logger.info("Testing model with sample image")
test_img = Image.new("RGB", (64, 64), color=(128, 128, 128))
_ = model(test_img)
logger.info("DepthAnythingV2 model loaded and tested successfully")
return model
else:
logger.error(f"Unknown config: {config_name}")
except Exception as e:
logger.error(f"Error loading DepthAnythingV2: {str(e)}")
logger.debug(traceback.format_exc())
# Fallback to MiDaS model for v1 or if V2 loading failed
try:
logger.info("Falling back to MiDaS model")
# Determine the appropriate MiDaS model type
midas_model_type = "dpt_hybrid"
if "large" in model_name.lower():
midas_model_type = "dpt_large"
elif "small" in model_name.lower():
midas_model_type = "midas_v21_small"
# Create and test the MiDaS model
midas_model = MiDaSWrapper(midas_model_type, device)
# Test with a small image
test_img = Image.new("RGB", (64, 64), color=(128, 128, 128))
_ = midas_model(test_img)
logger.info("MiDaS model loaded and tested successfully")
return midas_model
except Exception as e:
logger.error(f"Error loading MiDaS: {str(e)}")
logger.debug(traceback.format_exc())
# If all else fails, return None
return None
except Exception as e:
logger.error(f"Direct model loading failed: {str(e)}")
logger.debug(traceback.format_exc())
return None
def process_image(self, image: Union[torch.Tensor, np.ndarray], input_size: int = 518) -> Image.Image:
"""
Converts input image to proper format for depth estimation and resizes it.
Args:
image: Input image as tensor or numpy array
input_size: Target size for the longest dimension of the image
Returns:
PIL Image ready for depth estimation
"""
try:
# Validate input_size
if input_size < 256:
logger.warning(f"Input size {input_size} is too small, using 256 instead")
input_size = 256
elif input_size > 1024:
logger.warning(f"Input size {input_size} is too large, using 1024 instead")
input_size = 1024
# Convert tensor to numpy array
if torch.is_tensor(image):
# Check tensor dtype and convert to float32 if needed
if image.dtype == torch.float64 or image.dtype == torch.double:
logger.info(f"Converting input tensor from {image.dtype} to torch.float32")
image = image.float() # Convert DoubleTensor to FloatTensor
# Check for NaN values in tensor
if torch.isnan(image).any():
logger.warning("Input tensor contains NaN values. Replacing with zeros.")
image = torch.nan_to_num(image, nan=0.0)
# Get first image from batch and convert to numpy
image_np = (image.cpu().numpy()[0] * 255).astype(np.uint8)
else:
# Check for NaN values in numpy array
if np.isnan(image).any():
logger.warning("Input array contains NaN values. Replacing with zeros.")
image = np.nan_to_num(image, nan=0.0)
# Convert float64 to float32 if needed
if image.dtype == np.float64:
logger.info("Converting numpy array from float64 to float32")
image = image.astype(np.float32)
image_np = (image * 255).astype(np.uint8)
# Handle different channel configurations
if len(image_np.shape) == 3:
if image_np.shape[-1] == 4: # Handle RGBA images
image_np = image_np[..., :3]
elif len(image_np.shape) == 2: # Handle grayscale images
image_np = np.stack([image_np] * 3, axis=-1)
# Convert to PIL image
pil_image = Image.fromarray(image_np)
# Resize the image while preserving aspect ratio
width, height = pil_image.size
# Determine which dimension to scale to input_size
if width > height:
new_width = input_size
new_height = int(height * (new_width / width))
else:
new_height = input_size
new_width = int(width * (new_height / height))
# Resize the image with antialiasing
resized_image = pil_image.resize((new_width, new_height), Image.LANCZOS)
logger.info(f"Resized image from {width}x{height} to {new_width}x{new_height}")
return resized_image
except Exception as e:
logger.error(f"Error processing image: {str(e)}")
logger.debug(traceback.format_exc())
# Return a placeholder image on error
return Image.new('RGB', (512, 512), (128, 128, 128))
def _create_error_image(self, input_image=None):
"""Create an error image placeholder based on input image if possible."""
try:
if input_image is not None and isinstance(input_image, torch.Tensor) and input_image.shape[0] > 0:
# Check tensor type - if it's float64, log it for debugging
if input_image.dtype == torch.float64 or input_image.dtype == torch.double:
logger.info(f"Input tensor for error image is {input_image.dtype}, will create float32 error image")
# Create gray error image with same dimensions as input
# Ensure tensor has the right shape for error display (BHWC)
if input_image.ndim == 4:
if input_image.shape[-1] != 3: # if not BHWC format
if input_image.shape[1] == 3: # if BCHW format
# Extract height and width from BCHW
h, w = input_image.shape[2], input_image.shape[3]
else:
# Default to dimensions from input
h, w = input_image.shape[2], input_image.shape[3]
else:
# Already in BHWC format
h, w = input_image.shape[1], input_image.shape[2]
else:
# Unexpected shape, use default
return self._create_basic_error_image()
# Make sure dimensions aren't too small
if h <= 1 or w <= 1:
logger.warning(f"Input has invalid dimensions {h}x{w}, using default error image")
return self._create_basic_error_image()
# Gray background with slight red tint to indicate error - explicitly use float32
placeholder = torch.ones((1, h, w, 3), dtype=torch.float32) * torch.tensor([0.5, 0.4, 0.4], dtype=torch.float32)
if self.device is not None:
placeholder = placeholder.to(self.device)
# Verify the placeholder is float32
if placeholder.dtype != torch.float32:
logger.warning(f"Error image has unexpected dtype {placeholder.dtype}, converting to float32")
placeholder = placeholder.float()
return placeholder
else:
return self._create_basic_error_image()
except Exception as e:
logger.error(f"Error creating error image: {str(e)}")
return self._create_basic_error_image()
def _create_basic_error_image(self):
"""Create a basic error image when no input dimensions are available."""
# Standard size error image (512x512)
h, w = 512, 512
# Gray background with slight red tint to indicate error - explicitly use float32
placeholder = torch.ones((1, h, w, 3), dtype=torch.float32) * torch.tensor([0.5, 0.4, 0.4], dtype=torch.float32)
if self.device is not None:
placeholder = placeholder.to(self.device)
# Double-check that we're returning a float32 tensor
if placeholder.dtype != torch.float32:
placeholder = placeholder.float()
return placeholder
def _add_error_text_to_image(self, image_tensor, error_text):
"""Add error text to the image tensor for visual feedback."""
try:
# Convert tensor to PIL for text rendering
if image_tensor is None:
return
temp_img = self._tensor_to_pil(image_tensor)
# Draw error text
draw = ImageDraw.Draw(temp_img)
# Try to get a font, fall back to default if needed
try:
font = ImageFont.truetype("arial.ttf", 20)
except:
font = ImageFont.load_default()
# Split text into multiple lines if too long
lines = []
words = error_text.split()
current_line = words[0] if words else "Error"
for word in words[1:]:
if len(current_line + " " + word) < 50:
current_line += " " + word
else:
lines.append(current_line)
current_line = word
lines.append(current_line)
# Draw title
draw.text((10, 10), "Depth Estimation Error", fill=(255, 50, 50), font=font)
# Draw error message
y_position = 40
for line in lines:
draw.text((10, y_position), line, fill=(255, 255, 255), font=font)
y_position += 25
# Convert back to tensor
result = self._pil_to_tensor(temp_img)
# Copy to original tensor if shapes match
if image_tensor.shape == result.shape:
image_tensor.copy_(result)
return image_tensor
except Exception as e:
logger.error(f"Error adding text to error image: {e}")
return image_tensor
def _tensor_to_pil(self, tensor):
"""Convert a tensor to PIL Image."""
if tensor.shape[0] == 1: # Batch size 1
img_np = (tensor[0].cpu().numpy() * 255).astype(np.uint8)
return Image.fromarray(img_np)
return Image.new('RGB', (512, 512), color=(128, 100, 100))
def _pil_to_tensor(self, pil_img):
"""Convert PIL Image back to tensor."""
img_np = np.array(pil_img).astype(np.float32) / 255.0
tensor = torch.from_numpy(img_np).unsqueeze(0)
if self.device is not None:
tensor = tensor.to(self.device)
return tensor
def estimate_depth(self,
image: torch.Tensor,
model_name: str,
input_size: int = 518,
blur_radius: float = 2.0,
median_size: str = "5",
apply_auto_contrast: bool = True,
apply_gamma: bool = True,
force_reload: bool = False,
force_cpu: bool = False) -> Tuple[torch.Tensor]:
"""
Estimates depth from input image with error handling and cleanup.
Args:
image: Input image tensor
model_name: Name of the depth model to use
input_size: Target size for the longest dimension of the image (between 256 and 1024)
blur_radius: Gaussian blur radius for smoothing
median_size: Size of median filter for noise reduction
apply_auto_contrast: Whether to enhance contrast automatically
apply_gamma: Whether to apply gamma correction
force_reload: Whether to force reload the model
force_cpu: Whether to force using CPU for inference
Returns:
Tuple containing depth map tensor
"""
error_image = None
start_time = time.time()
try:
# Validate inputs
if image is None or image.numel() == 0:
raise ValueError("Empty or null input image")
if image.ndim != 4:
raise ValueError(f"Expected 4D tensor for image, got {image.ndim}D.")
# Check for DoubleTensor and convert to FloatTensor if needed
if image.dtype == torch.float64 or image.dtype == torch.double:
logger.info(f"Converting input tensor from {image.dtype} to torch.float32 in estimate_depth")
image = image.float() # This is crucial for fixing the tensor type mismatch
# Create error image placeholder based on input dimensions
error_image = self._create_error_image(image)
if torch.isnan(image).any():
logger.warning("Input image contains NaN values. These will be replaced.")
image = torch.nan_to_num(image, nan=0.0)
# Handle case where median_size is passed as a boolean or other type
if isinstance(median_size, bool) or median_size is True or median_size == 'True':
logger.warning(f"median_size was passed as boolean: {median_size}. Defaulting to 5")
median_size = "5"
elif not isinstance(median_size, str) or median_size not in self.MEDIAN_SIZES:
logger.warning(f"Invalid median_size: {median_size}. Defaulting to 5")
median_size = "5"
# Make sure it's one of the allowed values before any processing
if median_size not in self.MEDIAN_SIZES:
logger.warning(f"median_size '{median_size}' not in allowed values {self.MEDIAN_SIZES}, defaulting to 5")
median_size = "5"
# Load model with fallback strategy - wrapped in try-except
try:
self.ensure_model_loaded(model_name, force_reload, force_cpu)
except Exception as model_error:
# Special handling for model loading errors - common issue
error_msg = f"Failed to load model '{model_name}': {str(model_error)}"
logger.error(error_msg)
# Add error text to error image
self._add_error_text_to_image(error_image, f"Model Error: {str(model_error)[:100]}...")
return (error_image,)
# Process input image with resizing
try:
# Ensure input_size is valid
# Add more strict validation to handle edge cases
if not isinstance(input_size, int):
logger.warning(f"Input size {input_size} is not an integer, using 518 instead")
input_size = 518
# Fix input_size if it's too small
if input_size < 256:
logger.warning(f"Input size {input_size} is too small, using 256 instead")
input_size = 256
elif input_size > 1024:
logger.warning(f"Input size {input_size} is too large, using 1024 instead")
input_size = 1024
# Log tensor type for debugging
logger.info(f"Input tensor type before processing: {image.dtype}")
pil_image = self.process_image(image, input_size)
except Exception as img_error:
logger.error(f"Image processing error: {str(img_error)}")
self._add_error_text_to_image(error_image, f"Image Error: {str(img_error)[:100]}...")
return (error_image,)
# Perform depth estimation with error catching
try:
with torch.inference_mode():
# Log tensor info before depth estimation
logger.info(f"Calling depth estimator with PIL image of size {pil_image.size}")
depth_result = self.depth_estimator(pil_image)
# Convert output to float32 if needed
predicted_depth = depth_result["predicted_depth"]
if predicted_depth.dtype != torch.float32:
logger.info(f"Converting output from {predicted_depth.dtype} to float32")
predicted_depth = predicted_depth.float()
depth_map = predicted_depth.squeeze().cpu().numpy()
except RuntimeError as rt_error:
# Check for tensor type mismatch errors
error_msg = str(rt_error)
if "Input type" in error_msg and "weight type" in error_msg:
# This is the specific error we're trying to fix
logger.error(f"Tensor type mismatch error: {error_msg}")
# Try to fall back to CPU with explicit float conversion
logger.info("Attempting to fall back to CPU with explicit float conversion")
try:
# Create a copy of the image tensor with explicit float32 type
float_image = image.float().cpu() # Move to CPU and convert to float
return self.estimate_depth(
float_image, model_name, input_size, blur_radius, median_size,
apply_auto_contrast, apply_gamma, True, True
)
except Exception as float_fallback_error:
logger.error(f"Float fallback also failed: {str(float_fallback_error)}")
# Check specifically for CUDA out-of-memory errors
elif "CUDA out of memory" in error_msg:
error_msg = (
f"CUDA out of memory while processing depth map. "
f"Try using a smaller model or reducing image size."
)
logger.error(error_msg)
# Try to fall back to CPU if we hit OOM
if not force_cpu:
logger.info("Attempting to fall back to CPU due to CUDA OOM error")
try:
return self.estimate_depth(
image, model_name, input_size, blur_radius, median_size,
apply_auto_contrast, apply_gamma, True, True
)
except Exception as cpu_fallback_error:
logger.error(f"CPU fallback also failed: {str(cpu_fallback_error)}")
self._add_error_text_to_image(error_image, "CUDA Out of Memory. Try a smaller model.")
return (error_image,)
else:
# Other runtime errors
error_msg = f"Runtime error during depth estimation: {str(rt_error)}"
logger.error(error_msg)
logger.debug(traceback.format_exc())
self._add_error_text_to_image(error_image, f"Runtime Error: {str(rt_error)[:100]}...")
return (error_image,)
except Exception as e:
# General exceptions
error_msg = f"Depth estimation failed: {str(e)}"
logger.error(error_msg)
logger.debug(traceback.format_exc())
self._add_error_text_to_image(error_image, f"Error: {str(e)[:100]}...")
return (error_image,)
# Check for NaN values in depth map
if np.isnan(depth_map).any():
logger.warning("Depth map contains NaN values. Replacing with zeros.")
depth_map = np.nan_to_num(depth_map, nan=0.0)
# Continue with the normal depth map processing
try:
# Normalize depth values
depth_min, depth_max = depth_map.min(), depth_map.max()
if depth_max > depth_min:
depth_map = ((depth_map - depth_min) / (depth_max - depth_min) * 255.0)
depth_map = depth_map.astype(np.uint8)
# Create PIL image explicitly with L mode (grayscale)
depth_pil = Image.fromarray(depth_map, mode='L')
# Apply post-processing
if blur_radius > 0:
depth_pil = depth_pil.filter(ImageFilter.GaussianBlur(radius=blur_radius))
if int(median_size) > 0:
depth_pil = depth_pil.filter(ImageFilter.MedianFilter(size=int(median_size)))
if apply_auto_contrast:
depth_pil = ImageOps.autocontrast(depth_pil)
if apply_gamma:
depth_array = np.array(depth_pil).astype(np.float32) / 255.0
mean_luminance = np.mean(depth_array)
if mean_luminance > 0:
gamma = np.log(0.5) / np.log(mean_luminance)
# Use direct numpy operations for gamma correction
corrected = np.power(depth_array, 1.0/gamma) * 255.0
depth_pil = Image.fromarray(corrected.astype(np.uint8), mode='L')
# Fix the tensor conversion:
depth_array = np.array(depth_pil).astype(np.float32) / 255.0
# Check if depth_array has proper dimensions and isn't just a thin line
h, w = depth_array.shape
if h <= 1 or w <= 1:
logger.error(f"Invalid depth map dimensions: {h}x{w}, using error image instead")
if error_image is not None:
self._add_error_text_to_image(error_image, "Invalid depth map dimensions (thin line)")
return (error_image,)
else:
# Create new error image if one doesn't exist
error_image = self._create_basic_error_image()
self._add_error_text_to_image(error_image, "Invalid depth map dimensions (thin line)")
return (error_image,)
# Make sure we preserve proper dimensions - this is the crucial fix
logger.info(f"Depth map dimensions: {h}x{w}")
depth_rgb = np.stack([depth_array] * 3, axis=-1) # Shape becomes (h, w, 3)
# Convert to tensor and add batch dimension, ensuring float32 type
depth_tensor = torch.from_numpy(depth_rgb).unsqueeze(0).float() # Shape becomes (1, h, w, 3)
if self.device is not None and not force_cpu:
depth_tensor = depth_tensor.to(self.device)
# Make sure it's normalized in [0, 1] range
if depth_tensor.max() > 1.0:
depth_tensor = depth_tensor / 255.0
# Debug: log tensor shape and type
logger.info(f"Output depth tensor shape: {depth_tensor.shape}, dtype: {depth_tensor.dtype}")
processing_time = time.time() - start_time
logger.info(f"Depth processing completed in {processing_time:.2f} seconds")
return (depth_tensor,)
except Exception as post_error:
error_msg = f"Error during depth map post-processing: {str(post_error)}"
logger.error(error_msg)
logger.debug(traceback.format_exc())
self._add_error_text_to_image(error_image, f"Post-processing Error: {str(post_error)[:100]}...")
return (error_image,)
except Exception as e:
# Catch-all for any other exceptions
error_msg = f"Depth estimation failed: {str(e)}"
logger.error(error_msg)
logger.debug(traceback.format_exc())
# If error_image hasn't been created yet, create a basic one
if error_image is None:
error_image = self._create_basic_error_image()
self._add_error_text_to_image(error_image, f"Unexpected Error: {str(e)[:100]}...")
return (error_image,)
finally:
# Always clean up resources
torch.cuda.empty_cache()
gc.collect()
def gamma_correction(self, img: Image.Image, gamma: float = 1.0) -> Image.Image:
"""Applies gamma correction to the image."""
# Convert to numpy array
img_array = np.array(img)
# Apply gamma correction directly with numpy
corrected = np.power(img_array.astype(np.float32) / 255.0, 1.0/gamma) * 255.0
# Ensure uint8 type and create image with explicit mode
return Image.fromarray(corrected.astype(np.uint8), mode='L')
# Node registration
NODE_CLASS_MAPPINGS = {
"DepthEstimationNode": DepthEstimationNode
}
NODE_DISPLAY_NAME_MAPPINGS = {
"DepthEstimationNode": "Depth Estimation (V2)"
}