用于图像内容认证的水印技术研究  

Study of Image Watermarking for Content Authentication

作　　者：饶俊慧[1] 李琼[1] 

机构地区：[1]玉林师范学院物理与信息科学系,助教广西玉林537000

出　　处：《玉林师范学院学报》2007年第5期148-153,共6页Journal of Yulin Normal University

摘　　要：数字水印技术在数字图像认证和版权保护中起着非常重要的作用.本文概括了数字水印技术的基本原理,分析了变换域数字水印算法的优势,提出了一种基于参数化整数小波的水印算法,详细地阐述了水印的嵌入、检测和攻击类型判定.最后在Matlab平台下对水印算法进行了仿真,仿真结果证实了算法对恶意攻击的定位准确性.The technique of digital watermark plays an important role in the digital image authentication and the protection of copyright.This paper sums up the fundamental of digital watermark,analyzes the advantage of the transform region algorithins.In this paper we propose a scheme for image authtication based on integer wavelet transform with parameters,include embedding,detection and judgment of the attack style ,Finally,this paper gives the experiment of the algorithm on Matlab.The results show that the algorithm can locate the temper area accurately.

关 键 词：数字水印 图像认证 参数化 整数小波 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]