一种具有自我恢复功能的脆弱性水印技术  

A New Fragile Watermark with Self-correcting

作　　者：何孝富[1] 黄继风[1] 张培君[1] 戴蒙[1] 张功镀[1] 

机构地区：[1]上海师范大学计算机科学与技术系,上海200234

出　　处：《上海师范大学学报（自然科学版）》2004年第1期56-62,共7页Journal of Shanghai Normal University(Natural Sciences)

基　　金：上海市高等学校科学技术发展基金(CL200313).

摘　　要：脆弱性数字水印技术主要用于检测图像内容的完整性,即检测是否被篡改,并对其进行定位,它是解决数字产品内容保护的有效方法,而自嵌入水印技术不但具有检测篡改的能力,而且能够对被篡改区域进行修复.作者在对现有的自嵌入脆弱性水印进行分析的基础上,提出了一种改进的具有修复功能的自嵌入水印算法,大量的实验结果表明该方法的有效性与实用性.Fragile watermarking is designed to ensure the integrity of images,i.e.,it can detect any change to an image and locate the areas that have been tampered.It has been considered as an effective solution to protect the content of images.In this paper, we propose an improved technique for selfembedding an image into itself as a means for protecting the image content after analyzing other selfembedding methods. With selfembedding ,it is possible to recover portions of the image which has been tampered.This method has many advantages compared to other's and is testified by many pictures.

关 键 词：脆弱性水印 内容保护 自嵌入水印 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]