Identifying Manipulated Images 162
Jamie found a cool story at MIT Tech Review. (As an aside, it sits behind an interstitial ad AND on 2 pages: normally I reject websites that do that, but it's a slow news day, so I'm letting it through.)
Essentially, software is used to analyze light patterns in still photographs. Once you can figure out where the light sources are, it becomes a lot easier to determine if an image has been photoshopped.
Detector == Quality Control (Score:5, Interesting)
Colombo did this on his 1970's TV show (Score:5, Interesting)
I am not sure which episode it was. Peter Falk as Det. Lt. Colombo
weak (Score:4, Interesting)
this method is way better
Forensic Analysis Reveals Al-Qaeda's Image Doctoring [slashdot.org]
Finding Photoshopped Pics for Fun (Score:5, Interesting)
Anyway, that's just the geek in me I guess, because I really do enjoy finding flaws in images. What I hate is an image that has a sort of surreal perfection to it that I know must be composited, but I can't find any smoking gun.
Re:Adds a step for the photoshoppers (Score:3, Interesting)
If there's a plugin for helping me with that part of the struggle, I hereby scream to my fellow slashdotters to please fill me in!
speaking of which (Score:5, Interesting)
apparently this guy took some photos of some cannonballs in the crimean war that became famous as a poetic commentary on war. this documentary filmmaker, errol morris [wikipedia.org], has gone completely unhinged obsessive compulsive over whether or not the photos are fake and/ or manipulated. it's utterly fascinating, and a little weird, to see so much time and effort devoted to these photos. specifically, cannons and shadows. utterly esoteric and thorough. he also expands into the larger topic of the history of manipulated politically sensitive photos. makes for a good read, especially if you are interested in pre-photoshop image manipulation
check it out, talk about thorough [nytimes.com]
way better? (Score:2, Interesting)
As an unrelated sidenote, Hacker Factor features a very interesting javascript that guesses the gender [hackerfactor.com] of the author of a block of text (>300 words). Thus far, I've found it to be eerily accurate.
Re:Detector == Quality Control (Score:4, Interesting)