一种基于Cox框架与LWT的彩色图像水印算法(英文)  

A Novel Watermarking Algorithm for Color Images Based on Cox Framework and LWT

作　　者：袁志民[1,2] 陈立云[1] 

机构地区：[1]军械工程学院信息工程系,石家庄050003 [2]河北科技大学信息科学与工程学院,石家庄050018

出　　处：《科学技术与工程》2013年第21期6284-6289,共6页Science Technology and Engineering

基　　金：河北省科技计划项目(12210721)资助

摘　　要：在数字媒体交易应用中,水印算法必须符合交易协议的要求。提出一种新的彩色图像交易水印算法。算法基于Cox框架思想与提升小波变换(LWT)的特点、把卖方的版权水印与买方的数字指纹嵌入同一幅图像中,能与相应的水印交易协议相结合,实现对图像作品合法版权的鉴别、对非法盗版者的追踪。算法对一种现有小波域水印方案进行了实质性改进,显著提高了水印的不可感知性。In view of that digital watermarking algorithms have to accord with the basic requirements of digital media marketing protocol,a buyer-seller watermarking scheme is presented for color images based on Cox framework and wavelet transformation.The algorithm embeds a seller’s copyright watermark and a buyer’s digital fingerprinting in the same color image,so it can combine an appropriate buyer-seller watermarking protocol to identify who holds the legal copyright of the work and trace the illegal reseller.In our scheme a wavelet domain algorithm essentially is improved and got better performance in the aspect of imperceptibility.

关 键 词：版权水印 数字指纹 鲁棒性 不可感知性 LWT 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]