基于多小波变换零树结构的数字水印嵌入方法  

Embedding method of digital watermarking based on multiwavelet zerotree construction

作　　者：吴爱弟[1] 崔英俊[1] 刘赛君[1] 

机构地区：[1]天津工程师范学院数理系,天津300222

出　　处：《天津理工大学学报》2008年第2期59-62,共4页Journal of Tianjin University of Technology

基　　金：天津工程师范学院科研基金(kj2006-032)

摘　　要：随着数字产品和国际互联网的迅速发展,保护数字产品版权的问题变得越来越突出,数字水印技术是解决这个问题的一个有效手段.本文提出了一种基于多小波变换零树结构的数字水印算法.将二值水印嵌入到宿主图像的小波零树上,每一棵小波零树的水印信息对应于水印图像的一个像素点,实验表明该水印算法在多种攻击下都具有较好的鲁棒性.With the rapid development of Internet and digital products, the problem of protecting the digital products copyright becomes more and more outstanding. The technology of the watermark is an effective means to solve this problem. In this paper, a digital watermarking method based on multiwavelet zerotree construction is presented. A two-value watermark data are embedded into the wavelet zerotrees of the host image, and the watermark information of a wavelet zerotree is corresponding to a pixel of watermark image. The experimental result demonstrates the robustness of the digital watermarking procedure against several image degradations.

关 键 词：数字水印 多小波变换 小波零树 版权保护 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]