This simple script add a new layer on top of the image filled with neutral grey and in overlay mode. You can use this layer with the dodge and burn tool to work on shadows and highlights without destroying datas.
This Python plug-in helps in the comparison of the left part of an image to the right part (equilibrium or not). It can be applied to any type of image and computes the centroid of the gray image pixels. The centroid is similar to the centre of mass concept, where mass is replace by another quantity; here it is the lightness and the greyness of the pixel.
This script creates predefined black and white variations and saves them as layers. Users can choose which variations should be created.
For more sophisticated possibilities use the channel mixer or other tools. This script just uses typical black and white variations, to provide a quick overview - just switch the layers visibility afterwards.
Install to .gimp-2.6/scripts in your homedir as bwvariations.scm, then start GIMP or click Script-Fu->Script refresh, you'll find it then under Script-Fu->Misc->bwvariations
I made a CalendarGenerator plug-in.
1.Download "CalendarGenerator-ENG-32bit.zip" or "CalendarGenerator-ENG-64bit.zip" file.
2. Unzip this file.
3. Copy "CalendarGenerator.exe" file and "CalendarGenerator" directory into Gimp's plug-ins directory.
("C:\Program Files\GIMP 2\lib\gimp\2.0\plug-ins")
4. Open Gimp.
5. Plug-in is in Filters->Rendering->CalendarGenerator menu.