1 This is the PHP extension of the Puzzle library, which is designed to
2 quickly find visually similar images (GIF, PNG, JPG), even if they have been
3 resized, recompressed, recolored or slightly modified.
4 The library is free, lightweight yet very fast, configurable, easy to use
5 and it has been designed with security in mind.
7 WWW: http://libpuzzle.pureftpd.org/project/libpuzzle/php