GIMP Plugin Registry

This script does LAB sharpening using the unsharp mask in the luminance (L) layer. It decomposes the image into LAB layers, sharpens the luminance layer (using the supplied settings), and then recomposes the image. The interface is the same as the unsharp mask (radius, amount, threshold), but the filter is only applied to the luminance layer.

Converts every jpg-, png- and tif-Image into grayscale-Tif's, uses unsharp-mask and adjusts levels for offset-printing; works also in Subdirectories.