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: | 1-七月-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 |
顯示於類別: | 期刊論文 |