Spot faked photos using digital forensic techniques

We see hundreds or even thousands of images a day, and almost all of them have been digitally manipulated in some way. Some have gotten basic color corrections or simple Instagram filter effects, while others have received full on Photoshop jobs to completely transform the subject. It turns out humans aren't very good at recognizing when an image has been manipulated, even if the change is fairly substantial. Hany Farid is a professor of computer science at Dartmouth College who specializes in p