一种改进的基于矢量量化索引极性数字水印算法  

Improved Vector Quantization-based Index Properties Watermarking Algorithm

作　　者：林大会[1] 陈亮[2] 冯宗彬[1] 

机构地区：[1]解放军理工大学通信工程学院研究生3队,江苏南京210007 [2]解放军理工大学通信工程学院电子信息工程系,江苏南京210007

出　　处：《军事通信技术》2009年第3期41-45,共5页Journal of Military Communications Technology

摘　　要：针对现有的基于矢量量化索引极性的数字水印算法易产生"虚水印"以及码书必须作为密钥的不足之处,提出一种结合码书划分改进的索引极性算法。采用码书划分的方法在对载体图像进行分块编码得到的索引值中嵌入水印图像,同时利用索引值和水印信息生成密钥。仿真结果表明,改进的算法有效的解决了已有算法存在的不足,并且能抵抗JEPG压缩和常见的信号处理攻击。To solve the problems of the previous algorithm which is easy to be extracted void watermarking and whose codebook must be used as key,a new index properties watermarking algorithm based on Vector quantization was proposed.Firstly,the original image was divided into blocks and coded.Then the watermarking image was embedded into the index.Simultaneity,the indexes and watermarking image generate secret key.The experimental results indicate that the new algorithm can solve the problems of the previous algorith...

关 键 词：数字水印 矢量量化 索引极性 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]