(example image taken from http://www.linuxjournal.com/article/6388 for demonstration purpose)
This is a plugin for gimp to reduce the "red eye" effect. This filter works in LAB mode and you should only use it close to the
red eye (see picture).
This plugin is created for education purpose. I wanted a plugin for reducing the "red eye" effect and started to investigate the problem. It can be solved by converting the image to LAB colorspace, reset the A channel and reconvert to RGB space. It's pretty easy and works with a fixed threshold. After the development of this plugin, I found out that GIMP 2.4 will provide such a plugin. So you can see this plugin as a reinvention of the wheel.
Copy the file in your GIMP plugin-directory. In Unix this is normally ~/.gimp-2.2/plug-ins and you have to set the file permissions to 755. This can be done via
chmod 755 ~/.gimp-2.2/plug-ins/plugin_red_eye
Bugreports to me.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Currently there is only a non open source version. Release if planned for future.