Larry Ewing <lewing@gnome.org>
Ettore Perazzoli <ettore@perazzoli.org>
Stephane Delcroix <stephane@delcroix.org>

Features various pieces of cut & pasted code by:

 - Paolo Bacchilega <paolo.bacch@tin.it>
 - Miguel de Icaza <miguel@ximian.com>
 - Alexander Larsson <alexl@redhat.com>
 - Lutz Müller <lutz@users.sourceforge.net>
 - Federico Mena Quintero <federico@ximian.com>

the SemWeb code included in the semweb directory 
was written by Joshua Tauberer <tauberer@for.net>

see http://taubz.for.net/code/semweb

Code and ideas for JpegQuality guessing by Allan N. Hessenflow
relicensed under the GPL with permission.