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用于图像内容认证的半脆弱水印嵌入算法
引用本文:王向阳,杨红颖,陈利科,赵红.用于图像内容认证的半脆弱水印嵌入算法[J].小型微型计算机系统,2005,26(11):2017-2020.
作者姓名:王向阳  杨红颖  陈利科  赵红
作者单位:辽宁师范大学,计算机与信息技术学院,辽宁,大连,116029;中国科学院,软件研究所,信息安全国家重点实验室,北京,100039
基金项目:辽宁省自然科学基金(20032100)资助;信息安全国家重点实验室开放基金(03-02)资助.
摘    要:提出了一种用于图像内容认证的半脆弱水印嵌入算法,该算法以人眼视觉特性为基础,能够通过分组量化过程将水印信号自适应嵌入到原始图像的小波域内.该算法提取水印信息时不需要原始栽体图像.仿真实验表明,本文算法不仅具有较好的透明性,而且对JPEG压缩、叠加噪声、平滑滤波等常见图像处理操作具有较好的鲁棒性,同时能够对剪切、替换等恶意图像篡改做出报警并确定被篡改位置.

关 键 词:半脆弱水印  内容认证  分组量化  人眼视觉特性
文章编号:1000-1220(2005)11-2017-04
收稿时间:2004-04-27
修稿时间:2004-04-27

Semi-Fragile Image Watermarking for Content Authentication
WANG Xiang-yang,YANG Hong-ying,CHEN Li-ke,ZHAO Hong.Semi-Fragile Image Watermarking for Content Authentication[J].Mini-micro Systems,2005,26(11):2017-2020.
Authors:WANG Xiang-yang  YANG Hong-ying  CHEN Li-ke  ZHAO Hong
Affiliation:1.School of Computer and Information Technique, Liaoning Normal University, Dalian 116029, China;2.State Key Laboratory of Information Security, Institute of Software of Chinese Academy of Sciences, Beijing 100039, China
Abstract:A new semi-fragile image watermarking algorithm for content authentication is proposed in this paper.Based on human visual system,the watermark can be adaptively embedded into host image in the wavelet domain by using group quantization in our algorithm.The watermark can be extracted without resorting to the original host image.Experimental results show that the proposed watermarking scheme is invisible and is robust to common image processing(such as JPEG compression,noise adding,filtering).Our semi-fragile watermarking is fragile to content modification(such as cropping) and can detect effectively the tampered regions.
Keywords:semi-fragile watermark  content authentication  group quantization  human visual system
本文献已被 CNKI 维普 万方数据 等数据库收录!
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