基于整数提升小波变换的盲数字水印算法  

A Blind Digital Watermark Algorithm Based on Integer Lifting Wavelet Transform

作　　者：李建华[1] 李万社[2] 

机构地区：[1]河西学院数学系,甘肃张掖734000 [2]陕西师范大学数学与信息科学院,陕西西安710062

出　　处：《兰州交通大学学报》2008年第1期127-130,共4页Journal of Lanzhou Jiaotong University

基　　金：国家自然科学基金资助项目(10571113)

摘　　要：结合实际应用的需要,提出了一种基于整数提升小波变换的盲数字水印算法.该方法利用提升结构的带参数整数小波变换,可以在降低运算复杂度的同时,提高嵌入水印图像的质量.而且通过Arnold变换和设置一些参数为密钥,增强水印的安全性.水印的提取不需要原始图像和标准水印,更适合应用于网络环境.实验表明,该算法嵌入的水印具有较理想的安全性和较强的抗攻击能力.According to the practical application,a new blind watermark algorithm based on integer lifting wavelet transform is proposed in this paper. Compared with the traditional wavelet transform, the integer wavelet transform with lifting scheme can not only simplify the calculation but also improve the quality of the embedded watermark image. Then the algorithm uses Arnold transform and designs some parameters to guarantee security of watermark. Extracting watermark without original information is more superiority to media product network issue. The experimental result shows that the proposed algorithm is security and robust enough to resist many attacks of image processing.

关 键 词：整数提升小波变换 ARNOLD变换 盲数字水印 鲁棒性 

分 类 号：TP39[自动化与计算机技术—计算机应用技术]