一种新颖的半脆弱图像水印认证技术  

A Novel Semi-fragile Watermarking Scheme for Image Authentication

作　　者：付永钢[1] 

机构地区：[1]集美大学计算机工程学院,福建厦门361021

出　　处：《集美大学学报（自然科学版）》2009年第2期203-208,共6页Journal of Jimei University：Natural Science

基　　金：福建省自然科学基金项目(2007J0029);福建省青年创新基金项目(2006F3090);厦门市科技计划项目(3502Z20075054);集美大学科研基金项目(ZQ2006004;ZA2006004)

摘　　要：提出一种新颖的图像水印认证算法,利用量化的方法可以获得被保护图像的指纹信息,这部分信息被用来对给定图像进行认证.指纹信息的嵌入和抽取并不会影响到图像的质量.实验表明,该算法具有较好的图像认证能力,能够识别大多数对被保护图像进行的攻击.A novel semi-fragile watermarking scheme for image authentication was proposed. The finger-print information of the whole image was extracted following the idea of quantization in both spatial domain and frequency domain respectively, and this information was used for the image authentication. The fingerprint information extraction had no influence on the protected image. The experimental results showed that the proposed scheme had good authentication ability under general image processing and malicious attacks.

关 键 词：半脆弱性 数字水印 图像认证 鲁棒性 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]