摘要
提出了一种基于数据叠加的空间域的信息隐藏算法,通过对秘密信息数据流进行置乱,并采用数据叠加的方法将秘密信息非均匀地分布到图像载体的各位平面,以提高信息隐藏的安全性。实验表明,算法在保证良好的不可感知性前提下,使秘密信息具有很强的抗检测性、抗提取性,且隐藏容量较高,最大可达到4bits/pixel,有较强的实用性。
A spatial information hiding algorithm was proposed. When the data stream of secret information was srambled, the secret information was distributed non-symmetrically to every digital plane of the image carrier by data adding. Experiments indicate the algorithm has good ability of preventing to be perceived and the hiding data have good ability of preventing to be checked-up and distilled. The maximal efficiency of data hiding come up to 4bits/pixel.
出处
《计算机应用》
CSCD
北大核心
2006年第3期562-563,566,共3页
journal of Computer Applications
关键词
信息隐藏
灰度图像
数据叠加
information hiding
gray images
data adding
