一种带纠错编码的小波零树基图像水印算法  

EZW-based image watermarking algorithm with error correcting codes

作　　者：石培新[1] 王颖[1] 

机构地区：[1]中国科学院研究生院,北京100039

出　　处：《计算机应用》2004年第8期124-126,共3页journal of Computer Applications

基　　金：国家 8 63计划项目 (2 0 0 3AA1 4 4 0 81 ) ;信息安全国家重点实验室开放基金项目

摘　　要：提出了一种新颖的数字水印纠错编码方案。通过对二值水印图像进行精心设计 ,引入纠错编码机制 ,并将其应用于传统的小波零树 (EZW )算法中。实验结果表明 ,在相同的水印嵌入强度和攻击强度条件下 ,通过引入纠错编码机制 ,可以显著提高水印在抗JEPG压缩、抗几何攻击、抗中值滤波。We proposed a novel watermarking scheme based on error correcting code principle. By deliberately devising a binary image as the watermark, we introduced an error correcting code watermarking scheme, and applied it to the traditional embedded zerotree wavelet(EZW) watermarking algorithm. We tested the algorithm performance of the watermark in terms of different attacks, such as JPEG compression, image cropping and resizing, middle-value filter, and noise interference. Experimental results show great improvement on the watermark robustness after this error correcting code watermarking scheme was applied.

关 键 词：数字水印 纠错编码 二值图像 小波零树算法 鲁棒性 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构] TP391.41[自动化与计算机技术—计算机科学与技术]