Vulnerability of pixel-value differencing steganography to histogram analysis and modification for enhanced security.

Xinpeng Zhang Shuozhong Wang Vulnerability of pixel-value differencing steganography to histogram analysis and modification for enhanced security. 331-339 2004 25 Pattern Recognition Letters 3 http://dx.doi.org/10.1016/j.patrec.2003.10.014 db/journals/prl/prl25.html#ZhangW04