一种基于纠错编码的小波域数字图像水印技术  

A digital image watermark based on error-correcting codes in wavelet domain

作　　者：阙大顺[1] 陈杰[1] 姚涛[1] 

机构地区：[1]武汉理工大学信息工程学院,湖北武汉430063

出　　处：《电脑与信息技术》2006年第2期45-47,共3页Computer and Information Technology

摘　　要：文章提出了一种基于纠错编码的小波域数字水印算法,该算法在检测时不需要原始图像,实现了盲检。算法中对水印图像进行了置乱和混沌加密处理,提高了抗几何攻击的能力,并且提高了安全性,纠错编码的引入使水印抗攻击能力明显增强。实验结果表明该算法较好的保持了图像质量,并对一般的信号处理,如剪切、JPEG压缩、噪声等有很好的鲁棒性。In this paper,an algorithm of digital image watermark based on wavelet and errorcorrecting codes is introduced ,and the original image is not required for detecting the watermark. The watermark is scrambled and encrypted by chaotic sequences to improve the capability of resisting geometrical attacking and security. Experimental results show that the proposed algorithm keeps the quality of the image well and is robust against common image processing, such as cut, JPEG compress, and noise.

关 键 词：纠错编码 小波变换 图像置乱 混沌序列 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]