3.2 KiB
3.2 KiB
Documentation
- Class name: LoadImage
- Category: image
- Output node: False
- Repo Ref: https://github.com/comfyanonymous/ComfyUI
LoadImage节点旨在从指定目录中摄取图像文件,处理它们,并输出图像及其对应的掩码。它能够处理图像序列并将其转换为适合进一步处理的格式,强调其在准备图像相关任务数据中的作用。
Input types
Required
- image
- 'image'参数是要处理的图像文件的路径。它对节点的操作至关重要,因为它决定了要加载和操作的特定图像。
- Comfy dtype: str
- Python dtype: str
Output types
- IMAGE
- 'IMAGE'输出是一个表示处理后的图像数据的张量,它已被转换为浮点格式并进行了归一化。这个输出很重要,因为它是用于后续图像分析或操作任务的主要数据结构。
- Comfy dtype: torch.Tensor
- Python dtype: torch.Tensor
- MASK
- 'MASK'输出是一个表示与图像相关联的二进制掩码的张量,用于区分图像中的不同区域或对象。对于需要分割或对象识别的任务来说,它是必不可少的。
- Comfy dtype: torch.Tensor
- Python dtype: torch.Tensor
Usage tips
- Infra type: CPU
Source code
class LoadImage:
@classmethod
def INPUT_TYPES(s):
input_dir = folder_paths.get_input_directory()
files = [f for f in os.listdir(input_dir) if os.path.isfile(os.path.join(input_dir, f))]
return {'required': {'image': (sorted(files), {'image_upload': True})}}
CATEGORY = 'image'
RETURN_TYPES = ('IMAGE', 'MASK')
FUNCTION = 'load_image'
def load_image(self, image):
image_path = folder_paths.get_annotated_filepath(image)
img = Image.open(image_path)
output_images = []
output_masks = []
for i in ImageSequence.Iterator(img):
i = ImageOps.exif_transpose(i)
if i.mode == 'I':
i = i.point(lambda i: i * (1 / 255))
image = i.convert('RGB')
image = np.array(image).astype(np.float32) / 255.0
image = torch.from_numpy(image)[None,]
if 'A' in i.getbands():
mask = np.array(i.getchannel('A')).astype(np.float32) / 255.0
mask = 1.0 - torch.from_numpy(mask)
else:
mask = torch.zeros((64, 64), dtype=torch.float32, device='cpu')
output_images.append(image)
output_masks.append(mask.unsqueeze(0))
if len(output_images) > 1:
output_image = torch.cat(output_images, dim=0)
output_mask = torch.cat(output_masks, dim=0)
else:
output_image = output_images[0]
output_mask = output_masks[0]
return (output_image, output_mask)
@classmethod
def IS_CHANGED(s, image):
image_path = folder_paths.get_annotated_filepath(image)
m = hashlib.sha256()
with open(image_path, 'rb') as f:
m.update(f.read())
return m.digest().hex()
@classmethod
def VALIDATE_INPUTS(s, image):
if not folder_paths.exists_annotated_filepath(image):
return 'Invalid image file: {}'.format(image)
return True