Nowadays since the Internet is ubiquitous,the frequency of data transfer through the public network is *** secure data in these transmitted data has emerged broad security issue,such as authentication and copyright **...
详细信息
Nowadays since the Internet is ubiquitous,the frequency of data transfer through the public network is *** secure data in these transmitted data has emerged broad security issue,such as authentication and copyright *** the other hand,considering the transmission efficiency issue,image transmission usually involves image compression in Internet-based *** address both issues,this paper presents a data hiding scheme for the image compression method called absolute moment block truncation coding(AMBTC).First,an image is divided into nonoverlapping blocks through AMBTC compression,the blocks are classified four types,namely smooth,semi-smooth,semi-complex,and *** secret data are embedded into the smooth blocks by using a simple replacement *** proposed method respectively embeds nine bits(and five bits)of secret data into the bitmap of the semi-smooth blocks(and semicomplex blocks)through the exclusive-or(XOR)*** secret data are embedded into the complex blocks by using a hidden *** the embedding phase,the direct binary search(DBS)method is performed to improve the image qualitywithout damaging the secret *** experimental results demonstrate that the proposed method yields higher quality and hiding capacity than other reference methods.
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