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Yeung - Yeu n g P a n k a n t i 1 9 9 9...

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Yeu n g ,   P a n k a n t i 1 9 9 9
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•Use fragilewatermarking (if the image is altered,  watermark is changed) of fingerprint images to verify  integrity: •The decoded mark can indicate image alteration after it  has been marked by an authorized agent (i.e., a secure  sensor) •Watermark insertion: Merge input image I(i,j) with a  watermark image W(i,j) to produce the watermarked  image I’(i,j): •Each pixel is input to a watermark extraction WX()  function to yield extracted watermark value b(i,j). If b(i,j) is 
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