一种医学图像数字水印算法的研究与实现  

Study on Digital Watermarking in Medicine Image

作　　者：焦占亚[1] 张金丹[1] 胡予濮[2] 

机构地区：[1]陕西科技大学电气与信息工程学院,陕西西安710021 [2]西安电子科技大学通信工程学院,陕西西安710071

出　　处：《微电子学与计算机》2008年第3期15-17,共3页Microelectronics & Computer

基　　金：国家自然科学基金项目(60273084)

摘　　要：提出了一种适用于医学图像的数字水印算法.该算法对医学图像进行分块,根据每一块中最大值的个数与水印位的值之间的映射关系,实现水印的嵌入.在检测过程中又根据这一特定的关系判断水印位的值.实验结果表明,该算法对各种攻击具有脆弱性,从而实现了内容完整性认证,有效实现了原始水印的盲检测.This paper presented a watermarking algorithm for medical image. The image was divided into blocks. The algorithm caused the number of the maximum in a same block and the watermarking value to form a certain mapping relationship to complete the embedding. The relationship can judge watermarking value in the extraction process. The experimental results demonstrated that the proposed algorithm was fragile to many attacks, have realized the image authentication and integrity verification. It realized effectively the blind detection of original watermarking.

关 键 词：数字水印算法 二值水印 盲检测 MATLAB 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]