[bug]: Inpaint near image borders creates artifacts along the borders

[Svyaga]

[bug]: Inpaint near image borders creates artifacts along the borders

[Svyaga]

Forgot to mention that there was a similar problem in ComfyUI and it was fixed later:
comfyanonymous/ComfyUI#1363

And here's how it was fixed:
comfyanonymous/ComfyUI@bed116a

[Svyaga]

Seems to be the same problem as in ComfyUI, here are some examples of misaligned pixels in initial generation of 888x1184 image:


I also should add that this happens on all sides of the borders, but it's more visible on bottom and right borders, especially right one.

[dunkeroni]

The first example does look like an issue I've seen when denoising padded latents, which may be the case if your region dimensions are not multiples of 64. Reflect padding instead of constants usually worked best in my experiments.

Your second example confuses me, because pixels far outside of your mask area are being affected. That looks like VAE nondeterminism to me, but the canvas paste-back operation shouldn't allow that. What is your Mask Blur setting at? Seems like it might be way too high.

[Svyaga]

The first example does look like an issue I've seen when denoising padded latents, which may be the case if your region dimensions are not multiples of 64. Reflect padding instead of constants usually worked best in my experiments.

Your second example confuses me, because pixels far outside of your mask area are being affected. That looks like VAE nondeterminism to me, but the canvas paste-back operation shouldn't allow that. What is your Mask Blur setting at? Seems like it might be way too high.

1. Dimensions could be the case for tiled img2img, but not for canvas and especially not the initial generation. I only use automatic dimensions with upscale to 1024x1024 (or similar dimensions for other aspect ratios). I mean the upscale if the selected box is smaller than model preffered dimensions ("Scale before processing" option).

Here's 1024x1024 image without any img2img applied:

You can notice the misaligned pixels there:

2. These are my settings for compositing:
   
   

[Svyaga]

Info by dunkeroni:
https://discord.com/channels/1020123559063990373/1240001897814036562