Remember a couple of years back when a Reuters photographer got busted for manipulating photographs in Iraq to make them more, er, interesting? More smoke and whatnot. Well a guy, John Graham has written C code to detect Photoshopped cloning in images. He basically did it because he wanted to win a car in a Spot The Ball newspaper competition, and found a paper describing the algorithm he was looking for. He didn't end up winning the car but the program seems to work quite well. (See the images below).
You can download the C code from his blog (and see more pictures there and here) but I don't think there is a Windows executable yet.
Sorry to quibble - but the photo was of Beirut and was adding a bit more poetic license to the IDF retaliation (back in 2006). I'll dig up a link later.
ReplyDeleteUmmm, I don't think you need a fancy program to spot the obvious 'photoshopping' in the above image. Those bright red and blue squares really stand out.
ReplyDeleteZen, my bad. I thought it was Iraq.
ReplyDeletesean, the blue and red squares are what happens after the cloning search program is run to show where the cloned bits come from.
Well obviously IM Fletcher, it was just a silly attempt at a bit of humour on my part.
ReplyDeletewonderfully, beautifully geeky!
ReplyDeletethanks.. I had fun exploring the links and the programmers discussions
Opps, sorry Sean, I didn't have my sarcasm meter on yesterday :P
ReplyDeletebring back the devil's face in the WTC smoke!
ReplyDeleteNice call greg b. Hopefully you don't say the same of Clint Heine's infamous Helen Clark nude portrait!!
ReplyDelete