toning

Colour Match

bleg — Wed, 18 Nov 2009 07:49:16 +0100

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.

If you have an x86_64 version of GIMP 2.7 on linux, bunzip2 and move the colour-match file to your plugin directory:
bunzip2 colour-match.bz2
chmod 700 colour-match (Make it executable)
mv colour-match ~/.gimp-2.7/plug-ins/colour-match

To build it type: gimptool-2.0 --install colour-match.c
You will need libgimp-dev, and libgtk2.0-dev packages if you didn't build GIMP from source.

The algorithm is based on the relative color remap plug-in by Lars Clausen ( http://registry.gimp.org/node/5442 ).

D-Dayed

tuxcomputers — Sat, 14 Jun 2008 10:36:31 +0200

D-Dayed is a script for The GIMP
Makes the image like the over saturated grainy war photos as evoked in the cinematography of films like Saving Private Ryan

Automated dodge and burn

tuxcomputers — Fri, 06 Jun 2008 01:54:00 +0200

This is an automation script to dodge and burn the highlights and shadows.

Lomo

djinn — Fri, 16 May 2008 09:57:04 +0200

It tries to replicate lomography effect. It also tries C41 color curves. If someone has better color curve for this. Do tell

Pseudo Tone Fixer

sentinel1977 — Mon, 11 Feb 2008 15:26:03 +0100

This script tries to fix the tone of a photo taken with wrong exposure. In some landscape photos, it can have a nice effect of enhancing the colors.

The general idea is to produce different copies of the image at different gamma levels, then applying simple tone mapping techniques to produce a vibrant photo.

The script allows the user to control the number of copies by setting the lowest and highest gamma setting then the interval. For example lowest=20, highest=170, interval=10 results to (170-20)/10 = 15 copies with increasing gamma level from 0.2 to 1.7. Play around!

This is my first script and not so optimized, anyone is welcome to improve on it.
Warning, the higher the number of copies, the slower it becomes, especially on photos above 640x480. Best to try on reduced copies first.

Sepia Toning

wariat — Wed, 06 Feb 2008 12:53:33 +0100

This is an automagic copy of Sepia Toning tutorial www.gimp.org/tutorials/Sepia_Toning/ by Eric R. Jeschke

Duotone simulation

eg — Mon, 07 Jan 2008 14:11:18 +0100

Simulate several Duo- and Tritones (like sepia)

Tutorial: http://www.gimp.org/tutorials/Sepia_Toning/