Drastic color shift on output

Hi. I’ve discovered that after upscaling or denoising, input and output files differ greatly in terms of colour hue and saturation. Is it normal behaviour? Or a known bug? How to avoid it?


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To some degree, there can be some color restoration that happens, but that depends on the source material and model used. Would you be able to supply an example screenshot?

I have a strange feeling that the After Effects - Topaz - Prores workflow messes up the color. When rendering Tiffs everything is fine. I didn’t have time to explore the issue more, since tiffs work fine, it’s a workaround I can work with for a while, untill I ran out of space :>

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I also had to resort to doing image output. I got lucky and found a 4TB hard drive for 50 dollars at a pawn shop.

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The left image is the original, and the right is after upscale in art mode - same result with gamma correction on or off.

In a recent previous post someone mentioned they fixed by changing to JPEG and altering the output mode. I found that works with jpegs.

However my image must be PDF as it is transparent. The color output controls only pop up with jpg images.

Clearly, retaining precise color is very important. Any suggestions?