Try having a look at this site to discover Fast Fourier Transforms...
http://retouchpro.com/tutorials/?m=show&id=185
The latest version (and active website) for the plugin referenced in the article I can find is located here...
http://www.3d4x.ch/Swift's-Reality/FFT-Photoshop-plugin-by-Alex-Chirokov/16,35
I have used the earlier version of the plugin with some success and I have seen some really good results on DPreview (Digital Darkroom forum - do a search).
Anthony.
PS. I have downloaded the newer version for myself, so your query has done me a good turn - thanks.