Like Visipics, but faster.
Written in Lazarus and Freepascal.
The image hashing algorithm (DHash) is by Dr. Neal Krawetz, who writes at Hacker Factor.
Relevant articles:
- http://www.hackerfactor.com/blog/index.php?/archives/432-Looks-Like-It.html
- http://www.hackerfactor.com/blog/index.php?/archives/529-Kind-of-Like-That.html
The TurboJPEG bindings are by D. R. Commander.