基于混沌和奇异值分解的双层水印方法  

Double-Level Watermarking Algorithm Based on Chaos and SVD

作　　者：赵天忠[1] 薛模根[1] 李小明[1] 

机构地区：[1]炮兵学院信息处理实验室,合肥230031

出　　处：《计算机工程与应用》2005年第1期70-72,共3页Computer Engineering and Applications

摘　　要：文章运用混沌和奇异值分解理论,提出了基于二维混沌矩阵图像置乱方法,设计并实现了基于奇异值分解的双层水印算法,并对算法进行了实验与分析。实验结果与分析表明,该方法鲁棒性强、安全性好、易于实现,可应用于不同密级信息同时传播,具有一定的实用价值。In this paper,according to the theory of chaos and SVD,the picture scrambling algorithm based on two-dimension chaos matrix is proposed and double-level watermarking algorithm based on singular value decomposition(SVD)is also devised and implemented.Experiments and analysis show that this algorithm is easy to implement.It has the characteristics of robustness and security.Thus it can be applied in broadcasting multi-rank secret information simultaneously.

关 键 词：双层水印 奇异值分解 二维混沌 置乱 鲁棒性 安全性 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]