一种Arnold变换和骑士巡游算法相结合的医学图像置乱法  

A Medical Image Scrambling Method Based on Arnold and Knight's Tour Algorithm

作　　者：邢益良[1] 韩宝如[1] 符石[1] 

机构地区：[1]海南软件职业技术学院软件工程系,海南琼海571400

出　　处：《苏州市职业大学学报》2015年第4期7-9,共3页Journal of Suzhou Vocational University

基　　金：海南省自然科学基金资助项目(614241)

摘　　要：图像加密对保护医学图像安全性具有重要意义.针对Arnold周期性安全问题,利用Arnold变换和骑士巡游算法结合解决此问题.先迭代Arnold变换置乱图像,再把置乱图分成大块和小块,最后骑士巡游算法从局部和全局对图像进行置乱加密.该方法具有置乱度高和安全性高等优点.Image encryption is very important in protecting medical images. To solve the security problem of Arnold＇ s periodicity, a method of combining Arnold and Knight＇ s Tour algorithm is proposed. Firstly, an image is scrambled in an iterative process of Arnold. Secondly, it is cut into large and small areas, Lastly, it is scrambled by knight＇s tour algorithm locally and globally. The method enjoys the advantages of good scrambling and high security.

关 键 词：骑士巡游 ARNOLD 图像加密 医学图像 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]