From: "RubyTalk@..." Date: 2012-03-17T03:31:21+09:00 Subject: Re: Algorithm to compare two images I used http://www.hackerfactor.com/blog/index.php?/archives/432-Looks-Like-It.html for comparing mugshots. Its tweak-able an worked well enough. I did this in jruby and python. I found I had to write my own shrink method because resizing produces different results even with the same algorithms. Becker On Fri, Mar 16, 2012 at 5:55 AM, Jan E. wrote: > Hi, > > Well, it certainly depens on that you mean by "comparing". Maybe this is > helpful: > > http://rosettacode.org/wiki/Percentage_difference_between_images#Ruby > > -- > Posted via http://www.ruby-forum.com/. >