Nvidia AI Denoiser by Declan Russell is free on Github. Easy to use command line driven denoiser that processes an image in under 1 second. You can run a .bat file to automate multiple file processing. If you look at the post I put up on the previous page you can see examples.Gimp has lots of features and it's open source. I ran a quick pass over the two glasses, it's not perfect but it's better. I've barely used the program, I'm sure their are better results to be had by someone with more experience.