关于SVD图像的多水印算法  

Multiple Image Watermarking Algorithm Based on SVD

作　　者：方旺盛[1] 张松枭[1] 肖琴[1] 

机构地区：[1]江西理工大学信息工程学院,江西赣州341000

出　　处：《江西理工大学学报》2008年第2期21-24,共4页Journal of Jiangxi University of Science and Technology

摘　　要：针对多水印系统普遍较难满足用户独立嵌入水印的问题,提出基于CDMA的扩频编码,把预处理的多水印信息嵌入到抗几何攻击性能好的图像的SVD域上,达到了多用户独立嵌入和提取水印效果,并通过理论分析和实践证明了该算法的鲁棒性.Due to the fact that Multiple Image watermarking system commonly can＇t satisfy the need of the user＇s embeding the watermark independently,the paper proposes an algorithm based on CDMA spread frequency encoding which embeds the pretreated Multiple Image information in the SVD domain which is geometrically antidistorted.The algorithm can achieve multiuser embedding and distill the watermark independently.Theoretics anlysis and extensive experimental results show that this method is robust.

关 键 词：奇异值分解 码分多址 鲁棒性 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]