Gilles Caulier <caulier dot gilles at free.fr>       : Developer, coordinator.
Renchi Raju <renchi at pooh.tam.uiuc.edu>            : Developer.
Pieter Voloshyn <pieter_voloshyn at ame.com.br>      : Image filter algorithms.
Gerhard Kulzer <gerhard at kulzer.net>               : Handbooks writer.