GIMP Plugin Registry

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 extension allows you to add dominants to your black and white (or colour) photos.
In the "Layer mask" mode the dominant is balanced with a mask, such that your whites remains whites.
The homepage is in Italian but you can see some screenshots and examples there. Please note also that the plugin is in English.

Before

After

Windows binary for this new plugin by Arel Welgan.

Source has been fixed for Windows compilation by Samj. Plugin no longer crashes under Windows.

Please note that all comments below, prior to Nov 28 2009 are related to another build not to this
that seems working well with RGB and RGBA images

Extract colour-match.exe from the ZIP archive and copy it to your c:\Documents and Settings\[user name]\.gimp-2.6\plug-ins\

(As Windows compilation by Samj was perfect, I kept it in the archive. Mine was several bytes larger...)

Easily map colours from a source colour to a target colour. Very effective for matching skin tones across images or between people.

Relatively quick (but not earth shattering). It doesn't work with grayscale or indexed images. Has preview, works with selections and layers, etc. Very, easy to use, and quite useful for portraits or recolouring graphics.

A demonstration: Lenna's face is mapped to the colour of the feather on her hat. This was done by selecting a colour from her face, then selecting a colour from the feather.  read more »

What is Color Spotter? Basically, it's contrast, but "centered" around a color. Another way to see it is as another "Color selection" tool: you specify an image, a kind of threshold, and it selects color that are close to the one you specified; only, Color Spotter keeps every pixel from the image, darkening the wanted colors, brightening the others.  read more »

FX-Foundry/Color/Separate Luminance...

Creates two new layers: one containing the Luminance, and the other the Chroma information in the form of a Grain Merge. Optionally, it will color-enhance (maximize saturation in) the Chroma layer while still keeping it luminance-neutral.

This allows you to do noise-reduction and sharpening on the two layers separately.

Update (23-Jul-2009):
Noticed that highly-saturated colors exceed the ability of the grain-extract/grain-merge to handle without clipping the color, so I have made the excess color get folded into the luminance layer.  read more »

L*C*h (L*a*b* in polar coordinates) color selector module.

Just type "make install" to install this module (You don't need to rebuild the GIMP.) .

This simple plugin was created in response to a request here.

It simply samples the entire image colour, and allows you to either:
- Display the RGB or grey values
- Set the foregound colour
- Set the background colour
- Add it to the current palette (if editable)

There is a toggle to sample just the layer, or the merged image.

It registers in the Colour menu as "Sample Average Colour..." and should work for RGB, indexed, or greyscale images.

UPDATE: Version 1.1 of the script now respects image/layer transparency and selections.

-Rob A>

New version:1_3
Add to palette black, gray and white by default.

New version:1_2
Save palette bug fixed.

Version:1_1
Adjust light of scheme work fine (I hope!)

It generates palette by following the harmonic schemes of color: monochromatic, complementary, triadic, tetrad and analogous.
Options:
- you can choose between the digital wheel (RGB) and the real wheel (RYB);
- you can choose whether to use the color "web safe" or not;
- you can see in real time in a preview page the combination of colors;
- you can save a Gimp or Inkscape palette.
Required python libraries: :
- Grap  read more »

This script will create psychedelic 1960's text. I created this script from my tutorial of the same name. I didn't merge the layers in the script, as I did in the tutorial, because you can change the blend modes of the different layers for different appearance.

Rev. 2.0 - added compatability for Gimp 2.4.x

Rev. 2.1 and 2.2 - Added gradient controls.

http://i26.photobucket.com/albums/c147/PhotoMasterGreg/Scriptresult.jpg