Cut By Mask is always adding +1 pixel to the width and height.

[HomogenousMoss]

When doing a Cut by Mask, the +1 was always adding one pixel to the width and height of the output. It's a problem for example if you're trying to do multiples of 8 sizes so that the ksampler doesnt not resize the output to the nearest factor of 8.

I have an example thread on reddit about the issue:

• Thread
• Diagram

[Acly]

Hi! I believe I just stumbled across the same issue, only I was 1 minute later with opening a PR #8!

However I do believe that the computation in CutByMask is actually correct: the max is inclusive, so to compute the width/height +1 must be added. Rather it is the MaskToRegion node which is broken. It already generates a mask which is 1 pixel too large, and therefore the cut becomes too large as well.

[HomogenousMoss]

You're quite possibly right, it was my first time looking at python for comfyui, I just wanted this to work. I looked over your PR and it does seem like it would be a better solution. I'll close mine and hopefully yours get merged!