touch-up

CCD Camera Fringe Removal

gfxcoder — Wed, 17 Jun 2009 06:30:24 +0200

The script removes the blue/purple fringe found in digital camera pictures.

This script came out of necessity, when laborious and tedious work for fixing a large set of images became too much! It's certainly not perfect, but it does do a really decent job for a hands-off approach!

Version 1.1 (2009 June 18)

Fixed some blotchiness found in overblown areas
Cleared bright areas instead of value invert for better recoloring
Added multiply layer to darken the fringe a bit

Version 1.2 (2009 July 5)

Masked the darkening layer so "big" blue objects aren't darkened unnecessarily, which also fixed problems with blotchiness found in large blue areas (sky shots)

The script is located in "<Image> / Script-Fu / Enhance / Defringe"

Feedback appreciated!

Lomo-Gimp

ivalladt — Thu, 14 Aug 2008 13:06:35 +0200

Lomo-Gimp tries to give your digital pictures the warmth of those taken by an old rangefinder analog camera. Think of it as a Kodak Instamatic or a Lomo Holga faking effect. It enhances contrast and saturation, and applies a light and a dark overlay, trying to emulate incorrectness in exposition. Please note this does nothing to emulate the chromatic aberration peculiar in pictures taken using a real Lomo.

Get it at Lomo-Gimp.

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.

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.

Blue Sky & Clouds

Darla — Sat, 26 Jan 2008 09:42:42 +0100

To fix burned out or white skies by adding clouds and a blue sky gradient (using a threshold mask).

Guide to Using the Blue Sky & Clouds Script

Purple Fringe Fix

Darla — Wed, 23 Jan 2008 12:58:16 +0100

To reduce the effects of Purple Fringing or Chromatic Aberration in high contrast areas of an affected photograph.

Guide to Using the Purple Fringe Script

Blue Sky Gradient

Darla — Wed, 23 Jan 2008 12:52:52 +0100

To fix burned out or white skies by adding a blue sky gradient (using a threshold mask).

Guide to Using the Blue Sky Gradient Script

Contrast Fix

Darla — Wed, 23 Jan 2008 12:51:16 +0100

Adds a Contrast Adjustment layer to your image to help fix contrast problems.

Guide to Using the Contrast Fix Script

Saturation Fix

Darla — Wed, 23 Jan 2008 12:48:54 +0100

Saturation Fix for restoring clipped colour channels.

Guide to Using the Saturation Fix Script

Hot Dot (Hot Pixel) Fixer

Darla — Wed, 23 Jan 2008 12:46:22 +0100

To fix areas produced by hot, dead or stuck pixels. (Includes procedures for noninteractive file and folder batch processing.)

Guide to Using the Hot Dot Script