Digital photographers could soon be able to erase unwanted elements in photos by using tools that scan for similar images in online libraries. Research teams have developed an algorithm that uses sites like Flickr to help discover light sources, camera position and composition in a photo. Using this data the tools then search for objects, such as landscapes or cars, that match the original. The teams aim to create image libraries that anyone can use to edit snaps.http://news.bbc.co.uk/2/hi/technology/6936444.stm
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