GIMP Plugin Registry

I don't like the look of the existing beveling scripts so I wrote one up. It iterates shrinking selections to generate a bump map. It will use (in preferred order) the current selection, the alpha of the active layer, or the whole layer for the shape. The result is generated as a new layer set to hard light blend mode. It has:
- Inner and outer chisel/carve
- "Softness" parameter controls how hard/soft the heightmap bevel is
- "Effect Blur" parameter performs a post-bevel masked blur to make the chisel look more "puffy"
- Option to keep the bumpmap

Dialog:  read more »

Draws one of five types of predefined spirals, or lets the user modify the power parameter. The formula is:

r = a + b * theta ^ n

r - radius
a - growth factor
b - multiplication factor
theta - angle
n - power factor

The predefined types are: Archimedean (n = 1), Fermat (n = 1/2), Circle (n = 0), Lituus (n = -1/2), Hyperbolic (n = -1). If you choose a predefined type, the power factor you input on the form will be disregarded.

A simple detail enhancing/sharpening filter based on my simple bilateral code. It is essentialy a low precision version of the detail enhancement stage of some local tone mapping algorithms.

In non technical terms this is basically the anti surface blur. It takes a surface blur as a base layer, compares it with the original image and magnifies the differences. It brings out textures and makes skin look pretty horrible.

It will appear under:

Filters->Enhance->Enhance Details...

Windows version provided by Francois_C. Updated.

A surface blur filter based on a simplified version Porikli's O(1) bilateral filter.

Unfortunately due to the nature of the algorithm memory overheads can be severe. This filter uses a tile based implementation, which limits overheads to about 64mb.

On the plus side it is reasonably fast and scales well with filter radius.

When installed it should appear under filters->blur->simple bilateral

There is a mercurial repository which will be kept up to date with the latest code on my web site. This can be accessed with:

hg clone http://www.spectral3d.co.uk/repo/gimp_plugins  read more »

This script simulates the color style of the movie "300":
http://en.wikipedia.org/wiki/300_%28film%29  read more »

Alters image to have gradually fading overlapped borders when tiled. Like The GIMP's filter Make Seamless, only not as strong an overlap. To achieve this, the image size is reduced. The overlap amount can be chosen by the user. The script can be accessed through /Filters/Map/Make Weakly Seamless...

This script simulates a photochrom image, a lithographic printing process from the 1890's:
http://en.wikipedia.org/wiki/Photochrom  read more »

Converts a black and white 'scan' -- or other linework without transparency, to a layer with transparency corresponding to white in original image and black to solidity, with intermediate brightnesses translating to intermediate levels of solidity of black.

In short -- converts white -> transparency, black -> solid, with full antialiasing.  read more »

this is my first script-fu it will freeze anything you put inside it

This plugin creates a burnt-paper effect. It uses your selection as the original outline of the paper. It then creates an old looking piece of paper that is burnt around the edges and overlays the current layer atop this paper.

Here is an example of its output:

That image was created from a text layer and a selection that was larger than the text area:  read more »