I have never had much luck with Wavelets ( haven't learnt how to use it yet.) But some people swear by them to get rid of things that shouldn't be there.
There is one in gimp called Wavelet- Decompose under Filters, Enhance and the plugin GMIC also has one under Details = Split Details.
Have a look and it may be what you want.
There is one in gimp called Wavelet- Decompose under Filters, Enhance and the plugin GMIC also has one under Details = Split Details.
Have a look and it may be what you want.
