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Digital images contain their maker's mark

发布时间:2019-03-02 02:03:01来源:未知点击:

By Paul Marks IF YOU thought your digital photos could not be traced back to you, think again. It turns out that digital cameras leave a telltale fingerprint buried in the pixels of every image they capture. Now forensic scientists can use this fingerprint to tell what camera model was used to take a shot. To capture an image, digital cameras use a light-sensitive microchip called a charge-coupled device, or CCD,