GIMP Plugin Registry

Script-Fu Charcoal v1.0 Tested with Gimp 2.6

A Gimp script which turns a photograph into a black and white image which can look quite like a charcoal drawing. Works with RGB, Indexed and Greyscale images.  read more »

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: