Smart Sharpening for gimp
This (python) plugin for gimp does apply the unsharp mask filter to the image selectively.
Unlike the standard tool which does the selection by a threshold, this tool uses a high-pass filter
(neon edge detection) to determine where to apply. The filter is blurred and applied as a mask to the
Credits go to Michael Schilli's Linux Magazin 09/09 article for this.
Copyright: Kurt Garloff
License: GNU GPL v2 or later