Strange Artifact in image after denoising in Photo AI

If you look under the bird wings, you’ll see strange patterns instead of smooth, clear sky. This is not present in the original raw file. The original raw file has consistent noise. When I process this same image with DxO Pure Raw, this doesn’t happen.

Steps to reproduce issue:

  1. In LR Classic, Photo>Edit In>Topaz Photo AI
  2. Denoise

Topaz Photo AI [v2.3.1] on [macOS Sonoma 14.1] Lightroom Classic 13.1 Camera Raw 16.1

I’m not sure that I see the artifact that you are reporting.

Could you be more specific in your example?

  • Maybe consider arrows that direct us to the exact area you are referring to.
  • How would you describe the pattern (grid, color shift, etc.)?