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- W2368286196 abstract "To improve the accuracy of authentication and the quality of reconstructed image,reduce the probability of false rejection,this paper proposed an authentication and recovery separated self-embedding watermarking algorithm.It defined 2×2 image block as an authentication unit.It embedded the authentication watermark and recovery watermark respectively into the block itself and the corresponding excursion block,reducing the probability of false rejection to 0.It proposed an offset value selection sheme based on linear function and chaos mapping to improve the quality of the reconstructed image.Theoretical analysis and simulation results show that the proposed algorithm can not only thwart the collage and VQ attack,but also locate tampered blocks accurately and restore it effectively." @default.
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- W2368286196 date "2012-01-01" @default.
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- W2368286196 title "Self-embedding fragile watermarking algorithm with tamper authentication and content recovery separated" @default.
- W2368286196 hasPublicationYear "2012" @default.
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