基于图像置乱和小波变换的数字水印算法  

A New Watermark Algorithm Based on image-scrambling and DWT

作　　者：段晓明[1] 杨家明[1] 金宁[1] 

机构地区：[1]东华大学,上海201620

出　　处：《微计算机信息》2007年第21期38-39,37,共3页Control & Automation

摘　　要：本文提出一种新的基于Arnold图像置乱和DWT相结合的数字水印安全算法。先将水印图像置乱,然后用基于小波域的算法按一定规则把水印信息分散嵌入到数字产品中。经实验验证,它能够抵抗常见的各种攻击,不可见性和鲁棒性都得到了提高。It is represented that a new digital watermark algorithm based on Arnold image-scrambling and DWT.The watermark information is scrambled firstly and then embedded into the digital images in distribution with a certain method in wavelet domain,In the experiment,it is proved that kinds of attacks could be righted back and it has a better imperceptibility and stabilization.

关 键 词：ARNOLD置乱 离散小波变换 水印分散嵌入 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]