ComfyUI Node: Image List Replace

Image List Replace:

The ImageListReplace_ node is designed to facilitate the replacement of specific segments within a list of images. This node allows you to specify a range of indices within the image list and replace the images in that range with either a single image or a new list of images. This functionality is particularly useful for tasks that require selective modification of image sequences, such as video frame editing or batch image processing. By providing options to invert the selection and handle both single and multiple image replacements, the ImageListReplace_ node offers flexibility and control over the image manipulation process.

Image List Replace Input Parameters:

images

This parameter accepts a list of images that you want to process. The images are the primary input on which the replacement operations will be performed.

start_index

This integer parameter specifies the starting index of the range within the image list where the replacement should begin. The default value is 0, and it must be a non-negative integer. Adjusting this value determines the starting point of the replacement operation.

end_index

This integer parameter defines the ending index of the range within the image list where the replacement should end. The default value is 0, and it must be a non-negative integer. This value, in conjunction with the start_index, determines the span of the images to be replaced.

invert

This boolean parameter allows you to invert the selection range specified by start_index and end_index. If set to True, the images outside the specified range will be selected for replacement. The default value is False.

image_replace (optional)

This optional parameter accepts a single image that will be used to replace the images within the specified range. If provided, this image will be repeated to fill the entire range.

images_replace (optional)

This optional parameter accepts a list of images that will be used to replace the images within the specified range. If provided, this list will be used directly for the replacement, offering more flexibility compared to a single image replacement.

Image List Replace Output Parameters:

images

This output parameter returns the modified list of images after the replacement operation has been performed. It reflects the changes made based on the specified input parameters.

select_images

This output parameter provides the subset of images that were selected and replaced during the operation. It allows you to review or further process the images that were specifically targeted for replacement.

Image List Replace Usage Tips:

• To replace a specific segment of images within a list, set the start_index and end_index to define the range and provide the image_replace or images_replace parameter.
• Use the invert parameter to target images outside the specified range for replacement, which can be useful for excluding certain frames in a sequence.
• When replacing with a single image, ensure that the image_replace parameter is provided. For more complex replacements, use the images_replace parameter to supply a list of new images.

Image List Replace Common Errors and Solutions:

"Index out of range"

• Explanation: This error occurs when the start_index or end_index exceeds the bounds of the image list.
• Solution: Ensure that both start_index and end_index are within the valid range of the image list indices.

"No replacement image provided"

• Explanation: This error occurs when neither image_replace nor images_replace is provided.
• Solution: Provide at least one of the optional parameters (image_replace or images_replace) to specify the replacement images.

"Mismatched dimensions"

• Explanation: This error occurs when the dimensions of the replacement images do not match the dimensions of the original images.
• Solution: Ensure that the replacement images have the same dimensions as the original images to avoid this error.