On Fri, 2010-06-18 at 02:39 +0300, Dmitry Korzhevin wrote: > Hello > > Please tell me, how Shotwell compares images for similarity? Estimated > values: file name, date snapshot of the EXIF, the file size ... > If you are referring to how Shotwell identifies duplicates, it uses an MD5 hash of the image's binary data. Bruno