GIMP Plugin Registry

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.

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 »

Offsets all layers by half. Image/Half_Tile_Offset Useful when creating a tilable texture. Just press Alt+I,O and you can start editing the image-edge seams.

A workflow-friendly fast alternative to going around every layer and selecting Layer/Transform/Offset... / Offset by x2,y2 / OK

Usage:

Let's say we have this 256x256 crop:

   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

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 »

Automaticly copies the image and insert this. The script creates a Layer-Mask and makes a part of the insert layer invisible.
It's great to have a part of the original image on the top, because than you have a very well comparision.

If you have any suggestions for improvement contact me.

I hope this example conform your requests:

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.

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