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.

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 »

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 »

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:

In order to understand how this script works, we must focus on the selection mask, that is the channel related to the selection (you can view it either by activating Quick Mask or by saving the selection as a channel). Referring to this mask, the script eliminates every area that is composed from non-white pixels and is completely enclosed by a fence of white pixels; since the elimination consists in filling such areas of the mask with white, the corresponding holes of the selection will disappear.  read more »

The purpose of this script is to generate multiple copies of a drawable into the image where the drawable is. It is helpful especially whenever you have to get several duplicates of a drawable, because like this you can avoid repeating the 'Duplicate Layer' or 'Duplicate Channel' commands of the GUI so many times. Moreover, this script allows to displace the duplicates of a layer along both horizontal and vertical directions through the offset parameters, so that you can easily achieve a sequence of equidistant layers which should be otherwise obtained step by step.  read more »

Define the center of rotation, angle and count it will then copy and rotate based on the original distance from center. I have included images to show usage. This was based in part on Radial Copy by pkotronis but as i couldn't figure out how to use his i made a simpler one

edit: I added a layer resize to fix errors and a new script that does the same thing but creates a new layer for each rotation.

The script makes a pencil drawing from a photo. It's very easy to handle.
The original tutorial can be found here: http://www.gimpusers.com/tutorials/making-a-pencil-drawing-from-a-photo....
Here you can see a little example:

; glass-selection.scm
;
; version 1.0 [gimphelp.org]
; last modified/tested by Paul Sherman
; 01/01/2010 on GIMP-2.6.8
; Create Glass Effect of Selection
; based upon glass-text.scm by Scott Mosteller

Download, info and screenshots:
http://www.gimphelp.org/scripts/glass_selection.shtml

Just found this plugin that helps you to generate calendars with your pictures.
The code seems to be from 2008 but it still works fine in gimp 2.6.
Currently it can generate calendars with deutsch, english and catalan

All the credit goes to Moritz Mekelburger
http://www.mekelburger.org/moritz/linux/gimp.shtml