ComfyUI Node: Dilate/Erode Mask

Dilate/Erode Mask:

The DilateErodeMask node is designed to modify mask images by either expanding (dilating) or shrinking (eroding) the masked areas. This node is particularly useful for AI artists who need to refine mask boundaries in their image processing workflows. By adjusting the radius and shape parameters, you can control the extent and form of the dilation or erosion, allowing for precise manipulation of the mask. This can be beneficial for tasks such as enhancing details, removing noise, or preparing masks for further image processing steps.

Dilate/Erode Mask Input Parameters:

masks

This parameter accepts the mask images that you want to process. A mask is typically a binary image where the areas of interest are marked. The node will apply dilation or erosion to these masks based on the other parameters provided.

radius

The radius parameter determines the extent of the dilation or erosion. It accepts integer values ranging from -1023 to 1023, with a default value of 0. Positive values will dilate (expand) the mask, while negative values will erode (shrink) it. The magnitude of the radius controls how much the mask is expanded or shrunk.

shape

The shape parameter specifies the form of the structuring element used for dilation or erosion. It can be either "box" or "circle". A "box" shape will use a rectangular structuring element, while a "circle" shape will use a circular one. This affects the appearance of the modified mask edges.

Dilate/Erode Mask Output Parameters:

MASK

The output is a modified mask image where the areas have been either dilated or eroded based on the input parameters. This processed mask can be used in subsequent image processing steps to achieve the desired effects.

Dilate/Erode Mask Usage Tips:

• To remove small noise from a mask, use a small negative radius with a "circle" shape to erode the mask slightly.
• For enhancing the details of a mask, use a small positive radius with a "box" shape to dilate the mask.
• Experiment with different radius values and shapes to achieve the best results for your specific image processing task.

Dilate/Erode Mask Common Errors and Solutions:

Invalid radius value

• Explanation: The radius value provided is outside the acceptable range of -1023 to 1023. - Solution: Ensure that the radius value is within the specified range.

Unsupported shape type

• Explanation: The shape parameter is set to a value other than "box" or "circle".
• Solution: Set the shape parameter to either "box" or "circle".

Mask processing failure

• Explanation: An error occurred during the dilation or erosion process, possibly due to incompatible mask dimensions or data types.
• Solution: Verify that the input masks are correctly formatted and compatible with the node's requirements. Ensure that the masks are binary images and have consistent dimensions.