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PhotoTechEDU Day 14: Exposing Digital Forgeries from...

Google Tech TalksApril 25, 2007ABSTRACTWith the advent of high-resolution digital cameras, powerful personal computers and sophisticated photo-editing software, the manipulation of digital images is becoming more common. To this end, we have been developing a suite of tools to detect tampering in digital images. I will discuss two related techniques for exposing forgeries from inconsistencies in lighting. In each case we show how to estimate the direction to a light source from only a single image: inconsistencies across the image are then used as evidence of tampering. Credits: Speaker:Hany Farid
Length: 01:00:35

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