摘要
基于图像的熵分析,提出将一幅灰度图像嵌入另一幅彩色图像的自适应盲隐藏算法,该算法简单易行,隐藏信息量大,使用方便,对常见的图像处理与攻击具有一定的抵抗能力。另外,通过基于混沌的置乱技术,对要隐藏的数据进行预处理,使隐藏到载体图像中的数据有非常好的伪随机特征,具有很高的安全性。
With the concept of entropy,An adaptive digital images blind hiding algorithm is presented. A gray scale secret image can be hidden is one color carrier image with the schemes. In order to even more enhance the security and robustness of the hidden image, the scrambling technology based on hyperchaotic mapping can be used as pre-process of digital image information hiding. The blending parameters and the initial parameters of hyperchaotic mapping can act as the private keys. Experiments show that the schemes can be expediently realized and they are robust in some extent.
出处
《计算机应用与软件》
CSCD
北大核心
2007年第5期147-150,共4页
Computer Applications and Software
基金
本项目获北京市优秀人才培养专项经费资助(20042D0500508)
北京市教委科技发展计划资助项目(KM200710017007)
关键词
数字图像
信息隐藏
熵
混沌
Digital image Information hiding Entropy Chaos
