This plugin finds places on images which have been altered with the clone tool.
It's based on the stand-alone copymove sourcecode from John Graham-Cumming:http://www.jgc.org/blog/2008/02/tonight-im-going-to-write-myself-aston.html
This detector uses the technique described in:
'Detection of Copy-Move Forgery in Digital Images', Fridrich, Soukal and Lukas
Unless otherwise noted, the rights for the individual plugins are with their respective authors. Logo image by Jakub Steiner.