With this script is easy to create gradients that they simulate a sunset or a natural landscape. You take a photo panoramic, it selects a thin vertical strip and it rotates it in counter-clockwise direction. You read the maximum width of the image and insert it (width / 2) like number of segments in the dialog box of the plugin.
Examples of images created with the plugin
On the left original photo, to right the gradient.
The script removes the blue/purple fringe found in digital camera pictures.
This script came out of necessity, when laborious and tedious work for fixing a large set of images became too much! It's certainly not perfect, but it does do a really decent job for a hands-off approach!
Version 1.1 (2009 June 18)
Fixed some blotchiness found in overblown areas
Cleared bright areas instead of value invert for better recoloring