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Copy-evident document

Known as: Copy-evident 
Copy-evident documents have features that make it detectable that a copy is not the original. In security printing various methods such as void… 
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Papers overview

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2015
2015
Detecting prior compression is an essential task in image forensics and can be used to detect forgery in digital images. Many… 
2009
2009
We present a technique for adding a high-frequency pattern to JPEG images that is imperceptible to the unaided eye, but turns…