I’m a new user of Topaz Denoise AI, and loving what it can do, with the exception of one problem that I have not yet found a way around. I’m using Denoise AI 3.0 (haven’t upgraded to 3.1 yet). In areas of a photo that are black (maybe underexposed, maybe just properly black), Topaz Denoise AI will throw in a scattering of random red, green, and blue pixels.
I tried to upload images illustrating what’s happening, but apparently I don’t have permission to upload images. In the example photo I can’t show, there’s a bird with a black area on its face. In the original DNG file imported into Topaz Denoise AI, that black area looks normal.
After saving the file in Topaz Denoise as a DNG file and importing it into Darktable, that dark area is speckled with a scattering of random red, green, and blue pixels.
If I import the original DNG file into Darktable, the photo looks fine, so it’s clear that it’s Topaz Denoise doing this, not Darktable.
This only happens with black areas – the rest of the photo is fine. I’ve tried all the different combinations of settings I can think of (Clear, Low Light, sharpening, no sharpening, color noise reduction, etc.), but nothing makes any difference.
I have the same workflow setup on two computers (a desktop and a laptop), and the problem occurs on both of them.
Has anyone else seen this? Is there a way I can prevent this from happening?