| 一种改进的Arnold变换 |
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| 引用本文： | 贾松浩,杨彩,张海玉,刘晓霞.一种改进的Arnold变换[J].河南大学学报(自然科学版),2009,39(2). |
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| 作者姓名： | 贾松浩 杨彩 张海玉 刘晓霞 |
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| 作者单位： | 1. 南阳师范学院,计算机与信息技术学院,河南,南阳,473061
2. 西北大学,信息科学与技术学院,西安,710127 |
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| 基金项目： | 陕西省自然科学基础研究计划，南阳师范学院青年教师基金 |
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| 摘 要： | 基于置乱方法,针对载体图像为静态图像的信息隐藏技术进行研究,采用改进的Arnold变换对数字图像进行双向置乱,提高了置乱算法的效率,改善了置乱效果.通过在置乱算法中加入密钥,提高了算法的安全性.该算法简单易行,可作为数字图像信息隐藏和伪装的预处理工具.
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| 关 键 词： | 数字图像置乱 Arnold变换 密钥 数字图像隐藏 |
A Modification of Arnold |
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| JIA Song-hao,YANG Cai,ZHANG Hai-yu,LIU Xiao-xia.A Modification of Arnold[J].Journal of Henan University(Natural Science),2009,39(2). |
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| Authors: | JIA Song-hao YANG Cai ZHANG Hai-yu LIU Xiao-xia |
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| Institution: | 1.College of Computer and Information Techonlogy;Nanyang Normal University;Nanyang 473061;China;2.Department of Information Science and Technology;Northwest University;Xi'an 710127;China |
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| Abstract: | Based on scrambling,information hiding techniques are discussed in this paper,in which the static images are applied as carriers. This paper gives a modification of Arnold transformation. While the modified Arnold transformation is used to scramble a digital image in two directions,the computing cost is reduced notably and the result of scrambling has improved. By using secret key in scrambling,the security of the algorithm is increased. The approaches are easy to realize,and can be used as pre-processor fo... |
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| Keywords: | digital image scrambling Arnold transformation secret key digital image hiding |
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