comfyui-image-crop-by-mask-multiple

ComfyUI Image Crop By Mask And Resize (Multiple)

A ComfyUI custom node based on KJNodes' Image Crop By Mask And Resize, with one added feature: a multiple input that forces the output image, mask, and bbox dimensions to be an exact multiple of a value you choose (e.g. 8, 16, 32, 64), instead of the fixed multiple-of-16 rounding in the original node.

Why

Many models (video/image diffusion pipelines, VAEs, etc.) require input dimensions to be aligned to a specific step size. This node lets you set that step size directly instead of being locked to 16.

Node

Image Crop By Mask And Resize (Multiple)

Inputs:

• image, mask — standard ComfyUI IMAGE / MASK inputs
• base_resolution — target resolution for the longer side of the resize
• padding — extra pixels around the mask's bounding box
• min_crop_resolution / max_crop_resolution — clamp the raw crop box size before resizing
• multiple — output width/height (and bbox size) are rounded up to the nearest multiple of this value

Outputs:

• images, masks, bbox

Note: width and height are rounded to multiple independently, so on some aspect ratios the resize step can introduce slight stretching. This trade-off keeps the node simple and its output size predictable and bounded — it will never produce runaway resolutions regardless of the mask's aspect ratio.

Installation

Option A: ComfyUI Manager

Search for "Image Crop By Mask And Resize (Multiple)" in ComfyUI Manager's custom node browser and install directly.

Option B: Manual

cd ComfyUI/custom_nodes
git clone https://github.com/mo-akkakk/comfyui-image-crop-by-mask-multiple.git

Restart ComfyUI.

Credit

Based on the "Image Crop By Mask And Resize" node from KJNodes by kijai.

License

MIT — see LICENSE.