Ever seen a photo and wondered if it is real or 'photoshopped'? Been to a dating site and wonder if the photo truly represents the person shown?
Photo Police, a US$1.99 Mac app can often determine if a photo is real or fake. The app works by looking at low-bit pixel data, which can reveal if an image editor has made corrections or changes to software.
Program author Nikolay Kropachev told me that low bit data is usually white noise, and invisible just by looking at an image. The program applies some math and reveals the low bit data; changes can show up very clearly. It can detect blurring that might be used in wrinkle removal, or show where objects were deleted from images.
I tried it on some known fake photos and the c
