>> On Sat, 5 Sep 2009 10:33:03 -0600, >> Modulok <modu...@gmail.com> said:
M> I'm looking for a pseudo-checksum tool for use with cataloging images. M> For example, a strict checksum algorithm, like the sha family, will M> produce a dramatically different checksum for two files which differ by M> only a single bit. I'm looking for something where two images, which M> are similar, get a proportionally similar checksum. This works pretty well with text, but I don't know about images. http://ixazon.dynip.com/~cmeclax/nilsimsa.html What's a nilsimsa code? A nilsimsa code is something like a hash, but unlike hashes, a small change in the message results in a small change in the nilsimsa code. Such a function is called a locality-sensitive hash. -- Karl Vogel I don't speak for the USAF or my company Garlic gum is not funny. --written on blackboard by Bart Simpson _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"