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 Image Subtraction plugin compares each pixel of two given images and, if they are equal, put a transparent pixel on the new image. Otherwise, put on the new image the pixel from the primary image. It is useful if you want to isolate objects from two seemed images. The plugin has also a threshold slide bar.
A port of gimp-ace to GIMP 2.2, based on gimp-ace 0.6.3.
Reading from the original description there: The basic "Stretch Contrast" operation takes in the whole image at once, and if there is a white pixel anywhere in the image and a black pixel anywhere in the image, it figures the contrast is already as good as can be. But Adaptive Contrast Enhancement works to increase the contrast locally, and brings out details that most wide-sweeping contrast-enhancements pass over.
Runs also on GIMP 2.4, but the GUI is not 100% adopted.
Turns any image into an amazing circle.
This script has three settings:
1. Circle depth, set the circle depth percentage when doing the distortion.
2. Surround colour, pick the colour that goes around the outside of circle.
3. Crop, when and if the image is cropped into a square.
Using 100% circle: