>> Modulok <modu...@gmail.com> writes: >> > I'm not even sure such a tool exists, but it's worth asking: >> > >> > I'm looking for a pseudo-checksum tool for use with catalogging >> > images. For example, a strict checksum algorithm, like the sha >> > family, will produce a dramatically different checksum for two >> > files which differ by only a single bit. I'm looking for >> > something where two images images, which are similar, get a >> > proportionally similar checksum. When I speak of similarities >> > I'm referring to their image patterns. i.e two images of >> > differing sizes, which are otherwise identical, would produce >> > very similar checksums. So the closer the checksums are, the >> > more similar two given images are. >> >
>> > Does anyone know of anything like this? > > See if this ... > > http://www.stonehenge.com/merlyn/LinuxMag/col50.html > > > ... fits. > > > - parv *laughs* It makes me feel pretty good after reading how Mr.Schwartz went about it. Before I got any replies I started to think about how I'd do it and began to sketch out an algorithm on the kitchen floor. (Largest black-board in my house.) The general approach was pretty much the same; Recursive bucketing of pixels and generating averaged values down to a user-defined finite limit. Thanks to all who have replied thus far! -Modulok- _______________________________________________ email@example.com mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"