GIMP Plugin Registry

This script acts as a red fitler on diving photos.
To launch it, goto the menu /Script-Fu/Enhance/Diving red filter

Basically, create a new layer containing the corrected picture
You can adjust the red level (sometimes, green might works better !)
and set if the white balance has to be performed...
Enjoy !

Example :
(Copyright: Thomas Amory - right: before/Left: after)

(Copyright: Thomas Amory - right: after/Left: before)