perseus-a: Automatic indexing of the prometheus image archive.

Joint project of "prometheus - The Distributed Digital Image Archive for
Research & Studies" [1] and the Institute for Information Management of the
Cologne University of Applied Sciences [2], funded by the RheinEnergieStiftung
Cologne, Germany [3] from April 2007 to March 2009.

[1] <http://prometheus-bildarchiv.de/>
[2] <http://www.f03.fh-koeln.de/fakultaet/iim/>
[3] <http://www.rheinenergiestiftung.de/jbw/>