Diffimg had been updated to version v2.2.0 (2014/09/04).

DiffImg is a simple image comparison tool which take two images with the same size as input.
Requires Qt4: http://svn.netlabs.org/qt4
PortPage: http://svn.netlabs.org/qtapps/wiki/QT4%20Graphics
Project homepage: http://thehive.xbee.net/index.php?module=pages&func=display&pageid=11
Ported by Elbert Pol.