
By Lukas Kunc



Filtres > Amélioration > Iterative refocus...

Filters > Enhance > Iterative refocus...

RGB* & GRAY images.

http://refocus-it.sourceforge.net/


https://sourceforge.net/projects/refocus-it/files/refocus-it/2.0.0/refocus-it-2.0.0.tar.gz/download


Introduction

The Refocus-it GIMP plug-in, released under GNU General Public License (GPL), can be used to refocus images acquired by a defocused camera, blurred by gaussian or motion blur or any combination of these.
There are a few nice features of this plug-in, especially adaptive / static area smoothing used to remove the so called "ringing" effect introduced by edges in the image and effects introduced by noise. 
Mirror and periodical boundary conditions are available. Preview helps you select the best parameters.
There are a few NOT nice features of this plug-in as well, namely its memory and CPU requirements.
The algorithm is based on finding the minimum of the error function using Hopfield neural network.