GIMP Plugin Registry

This plug-in changes color balance to imitate images taken with Manual / Classic lenses but without any effect of degradation similar to images made with toy lenses.

See samples:
Original:

After Manual Lens filter:

Now script-fu version available:
No need for python installation.
Copy the .scm file to:

Color balance 2 plug-in alters image/layer shadows, midtones and highlights color balance using individual channel levels.

WINDOWS USERS:
Python installation:
Download Python installation version 2.6.6 :
http://www.python.org/ftp/python/2.6.6/python-2.6.6.msi

Then follow these steps:
http://www.gimpusers.com/tutorials/install-python-for-gimp-2-6-windows.html

Copy the .py file in:

The script enables you to do two image adjustment operations to all images in a folder:

1. Individually adjust the color balance in shadows, midtones and highlights
2. Adjusting the Brightness and Contrast

You choose a folder with a folder browsing widget, you can also specify the file extension of the files you would want to change(useful if you have non supported files in the same folder).  read more »

This script converts the color temperature of an image. You can specify the color temperature of the original image, and the desired color temperature of the result, as well as a brightness correction factor. The script installs itself under the menu Filters/Colors/Convert Color Temperature.

The full documentation for the script is available at http://luca.dealfaro.org/Colortemp

The script works for Gimp 2.2, 2.4, and 2.6 .

This script converts the colors of an image, so that the foreground color (chosen, e.g., with the color picker tool) is either transformed to gray, or to the background color. The script can be used to remove color casts. The script installs itself under the menu Filters/Colors/White balance.

The documentation for the script is available at
http://luca.dealfaro.org/Whitebalance

The script works for Gimp 2.2, 2.4, and 2.6 .