Clone Detection

Copymove by John Graham-Cunning detects image manipulations which have been created with the clone tool.

NEW: Complete rewrite as CopyMove2:

https://github.com/elsamuko/copymove2

NEW: GIMP plugin added. Compile and install with:

$ CC=g++ CFLAGS=-O3 LIBS=-lpthread gimptool-2.0 --install elsamuko-copy-move.c

You will find the plugin then under Image->Copy Move.

NEW2: W32 version added.

Update1: Linux version with multithreading and can be used for bigger images now.

Update2: Massive speed gain thanks to the hint of Luca Del Tongo:

http://blogs.ugidotnet.org/wetblog/

The calculation only uses the lower frequencies of the DCT now.

Update3: Ignoring "boring" regions while comparison, e.g. where second and third DCT rings are zero.

Original (cc from Mark Hogan):

Cloned out sign:

$ ./copymove warning_clone.jpg 2 10