I use Denoise AI on some shots of a performer in low light stage light (changing colored LED's) all shot at the same ISO of 6400 on a E-M!X and 75 1.8
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Results were very good. Since all images were close to the same I wanted to batch process which is not available. By putting the selects in a separate folder and running from PS File->Scripts->Image Processor an action that created a new layer and then called Denoise AI, set some parameters, and then closed, I was able to batch. The action is simple and easy to create,
What I found surprised me. On a couple of images there where areas that were not denoised. This was a high contrast edge against smooth out of focus background with no detail. There were several other areas of highlight, mostly specular, that also were not processed. They were easy to fix using a low Gaussian blur on the selected regions, but still a time killer.
What was strange is that most of the other shots, often the next one that was taken a minute latter, were fine. Most of the shots were processed fine.
On the shots without the artifacts the results were outstanding.
This is a new program and does not have the refinements of most Topaz programs. No presets and the setting are not sticky. This will all come with upgrades as well as improvements the algorithm that should fix the areas that are not processed.
Image is one of the good ones. I like the grit and realism that grain gives skin. So I masked the denoised layer and reduced the denoising in the skin ares to show more grain - to taste. On the bad images the area at the bottom of the image over his right shoulder was the are effected. It is fine here.
Larry