Hi! There is a post from back in May titled DeNoise AI Brightening Image I seem to be having the exact opposite problem - my images are appearing darker. Some details:
Canon 1Dx Mark II raw files (.CR2)
Topaz Denoise AI Standalone version 1.2.1
Windows 10 (Lenovo Y520 Laptop)
The image appears very dark in the DeNoise AI preview window and also appears dark when saved to a .dng and processed in Lightroom.
Shown below is a comparision of the processed (.dng) file vs the original RAW file.
Jerry, one test you can run is to use another RAW processor to produce the TIFF as Topaz applies a near linear curve to the RAW images. Then see if DeNoise retains the correct curve.
I haven’t had any issues because I don’t use the Topaz products to convert RAW files but if I do, in say Studio, I just apply a “S” curve to get the correct conversion.