F is for Photoshopped

Posted by MacDood
Researchers at Dartmouth University College have developed an algorithm to automatically detect when a digital photo has been manipulated. Their statistical technique is based on the fact that altering an image messes with the hidden mathematics inside the photo.

"There is little doubt that counter-measures will be developed to foil our detection schemes," says Farid. "Our hope, however, is that as more authentication tools are developed it will become increasingly more difficult to create convincing digital forgeries."

Difficult, but not impossible, hopes the Weekly World News.

Link [Boing Boing]