ComfyUI Node: ZZX_PaintsUndo

ZZX_PaintsUndo:

ZZX_PaintsUndo is a specialized node designed to facilitate the process of undoing paint effects on images within the ComfyUI framework. This node is particularly useful for AI artists who need to revert or adjust specific paint modifications applied to an image. By leveraging advanced models and algorithms, ZZX_PaintsUndo can process an input image, interpret a given or generated prompt, and apply a series of undo steps to achieve the desired result. The node ensures that the output image is in the correct format and maintains high quality, making it an essential tool for refining and perfecting digital artwork.

ZZX_PaintsUndo Input Parameters:

image

The image parameter is the input image that you want to process. This image should be in a format compatible with the node, typically as a tensor or array. The node will use this image as the base for applying the undo steps.

Prompt

The Prompt parameter is a string that provides a textual description or instruction for the undo process. If left empty, the node will generate a prompt based on the input image using a default interrogator. This prompt guides the node in understanding what aspects of the paint effect need to be undone. The default value is an empty string, and it supports multiline input.

undo_steps

The undo_steps parameter is an integer that specifies the number of steps to revert the paint effects. This parameter controls the extent of the undo process, with higher values resulting in more significant reversion. The minimum value is 1, the maximum value is 999, and the default value is 5.

seed

The seed parameter is an integer used for random number generation to ensure reproducibility of the results. By setting a specific seed value, you can achieve consistent outputs across multiple runs. The minimum value is 0, and the maximum value is 0xffffffffffffffff, with a default value of 0.

ZZX_PaintsUndo Output Parameters:

image

The image output parameter is the processed image after the undo steps have been applied. This image is returned in a format compatible with ComfyUI, typically as a tensor with values normalized between 0 and 1. The output image reflects the adjustments made based on the input parameters and the undo process.

prompt

The prompt output parameter is the final prompt used during the processing. If an input prompt was provided, this will be the same as the input. If the prompt was generated by the node, this output will contain the generated prompt. This helps in understanding the context and instructions used for the undo process.

ZZX_PaintsUndo Usage Tips:

• Ensure that the input image is in the correct format and properly preprocessed before feeding it into the node.
• Experiment with different undo_steps values to find the optimal level of reversion for your specific use case.
• Use a consistent seed value if you need reproducible results across multiple runs.
• If you are unsure about the prompt, leave it empty and let the node generate one based on the input image.

ZZX_PaintsUndo Common Errors and Solutions:

"Unexpected result shape: <shape>"

• Explanation: This error occurs when the output image shape does not match the expected format.
• Solution: Verify the input image format and ensure it is compatible with the node. Check the processing steps to ensure they are correctly applied.

"Detected 3-channel output, assuming BGR order"

• Explanation: This message indicates that the output image has three channels, and the node assumes it is in BGR order.
• Solution: The node automatically converts BGR to RGB. If the output image colors appear incorrect, double-check the input image format and ensure it is in the expected order.

"Final output image min/max values: <min>, <max>"

• Explanation: This message provides the minimum and maximum values of the output image, which helps in verifying the normalization process.
• Solution: Ensure that the output image values are within the expected range (0-1). If not, adjust the preprocessing or postprocessing steps accordingly.