Abstract:Abstract:The challenge here is that the appearance of human face can change drastically due to various illumination conditions and there are also many camera-related factors that may influence the quality of images, which makes it hard to differentiate images from a live person from those from photos. Due to these, simply asking "what's in the image (e.g., human skin)" tends to be unreliable. Another strategy is to use various image processing techniques to extract features that highlight the difference betwee… Show more
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