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《Information Technology》 2006-12
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A watermarking algorithm based on HVS and DCT

JIANG Feng-li,CHEN Ming-ming(School of Mathematics and Physics,Liaoning University of Petroleum & Chemical Technology,Fushun 113001,China)  
As a new technique to protect the ownership of digital productions,digital watermarking is applied widely.An useful digital watermark algorithm should be visually imperceptible and must be robust to resist(various) attacks.The digital watermarking technique based on DCT domain is a research hot.This paper presented (an algorithm) combining human vision system through changing DCT coefficients in middle frequency band to implement embedding watermark.The experimental result showed that this algorithm possessed of good visual effect and stronger robustness to JPEG loss compression,cropping,noise interference,fuzzy image and so on.
【CateGory Index】: TP309.7
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