filter

An alternative edge detector based on the implementation in the OpenIllusionist project.

The original algorithm requires scaling down of the entire image area to be processed and it would have to be completely re-written to work with GIMP tiles. Since this plugin is a simple adaptation of the original algorithm it does not make use of tiles and therefore it needs to allocate a lot of memory to work. So please be aware that it may have problems if you attempt to use it on an extremely large image!

This plug-in changes color balance to imitate images taken with Manual / Classic lenses but without any effect of degradation similar to images made with toy lenses.

See samples:
Original:

After Manual Lens filter:

Now script-fu version available:
No need for python installation.
Copy the .scm file to:

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