diff --git a/comfy_extras/nodes_dataset.py b/comfy_extras/nodes_dataset.py index 73fe75b7f..3bf9859b4 100644 --- a/comfy_extras/nodes_dataset.py +++ b/comfy_extras/nodes_dataset.py @@ -171,6 +171,17 @@ def save_images_to_folder(image_list, output_dir, prefix="image", overwrite=True os.makedirs(output_dir, exist_ok=True) saved_files = [] + if isinstance(image_list, torch.Tensor): + image_list = [image_list] + + normalized_images = [] + for img in image_list: + if isinstance(img, torch.Tensor) and img.dim() == 4: + normalized_images.extend([img[i] for i in range(img.shape[0])]) + else: + normalized_images.append(img) + image_list = normalized_images + for idx, img_tensor in enumerate(image_list): # Handle different tensor shapes if isinstance(img_tensor, torch.Tensor): @@ -192,6 +203,12 @@ def save_images_to_folder(image_list, output_dir, prefix="image", overwrite=True img_array = np.clip(img_array * 255.0, 0, 255).astype(np.uint8) # Convert to PIL Image + while img_array.ndim > 3 and img_array.shape[0] == 1: + img_array = img_array[0] + if img_array.ndim > 3: + raise ValueError( + f"Unsupported image tensor shape after normalization: {tuple(img_array.shape)}" + ) img = Image.fromarray(img_array) else: raise ValueError(f"Expected torch.Tensor, got {type(img_tensor)}") @@ -309,6 +326,16 @@ class SaveImageTextDataSetToFolderNode(io.ComfyNode): output_dir = os.path.join(folder_paths.get_output_directory(), folder_name) saved_files = save_images_to_folder(images, output_dir, filename_prefix, mode=='overwrite') + flat_images = [] + for img in images: + if isinstance(img, torch.Tensor) and img.dim() == 4: + for i in range(img.shape[0]): + flat_images.append(img[i]) + else: + flat_images.append(img) + images = flat_images + + # Save captions if texts: for idx, (filename, caption) in enumerate(zip(saved_files, texts)):