Add borders to your image.
Updated to work with Guimp 2.8.
Implements an ISO noise reduction as described in the tutorial below, also this script uses different methods (masking the edges and then blurring the individual color channels or the luminance channel only)
Implement a highpass filter sharpening
Infos about highpass sharpening:
Updated to work with Gimp 2.8.
Autolevel colors (aka trivial auto-whitebalance), switch Red and Blue channel in a color IR image
Add adding realistic film grain to BW images
Description for PS: http://www.outbackphoto.com/workflow/wf_95/essay.html
Unless otherwise noted, the rights for the individual plugins are with their respective authors. Logo image by Jakub Steiner.