標題: Data hiding in 2-color images
作者: Tseng, YC
Pan, HK
資訊工程學系
Department of Computer Science
關鍵字: binary image processing;coding;cryptography;information hiding;prisoners' problem;security;steganography
公開日期: 1-Jul-2002
摘要: In an earlier paper [4], we proposed a steganography scheme-for hiding a piece of critical information in a host binary image. That scheme ensures that, in each m x n image block of the host image, as many as [log(2)(mn + 1)] bits can be hidden in the block by changing at most 2 bits in the block. In this paper, we propose a new scheme that improves [4] in its capability to maintain higher quality of the host image after data hiding by sacrificing some data hiding space. The new scheme can still offer a good data hiding ratio. It ensures that, for any bit that is modified in the host image, the bit is adjacent to another bit which has a value equal to the former's new value. Thus, the hiding effect is quite invisible.
URI: http://dx.doi.org/10.1109/TC.2002.1017706
http://hdl.handle.net/11536/28670
ISSN: 0018-9340
DOI: 10.1109/TC.2002.1017706
期刊: IEEE TRANSACTIONS ON COMPUTERS
Volume: 51
Issue: 7
起始頁: 873
結束頁: 880
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