| 一种实用的图像加密算法 |
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| 引用本文： | 闵连权.一种实用的图像加密算法[J].遥感技术与应用,2005,20(5):512-516. |
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| 作者姓名： | 闵连权 |
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| 作者单位： | 信息工程大学测绘学院,河南,郑州,450052 |
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| 摘 要： | 秘密图像信息网络传输的前提是对它进行加密处理。讨论了混沌系统和Blum—Blum—Shub发生器的特性，利用它们生成位置置乱矩阵和系数扰动矩阵，通过它们对图像的小波变换系数进行修改实现图像的加密。通过实验证明，该算法是一个有效的、实用的图像加密算法。
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| 关 键 词： | 图像加密 离散小波变换 混沌序列 伪随机序列 |
| 文章编号： | 1004-0323（2005）05-0512-05 |
| 收稿时间： | 2005-03-07 |
| 修稿时间： | 2005-09-12 |
A Practical Image Encryption Algorithm |
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| MIN Lian-quan.A Practical Image Encryption Algorithm[J].Remote Sensing Technology and Application,2005,20(5):512-516. |
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| Authors: | MIN Lian-quan |
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| Affiliation: | Institute of Surveying and Mapping, Information Engineering University, Zhengzhou 450052, China |
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| Abstract: | Image encryption is the premises of secret image transmission in network. The paper discusses the characteristics of chaotic sequence and Blum-Blum-Shub generator, and generates position scrambling matrix and coefficient disturbing matrix. Then two matrixes was used to encrypt image DWT coefficient, and experimental results show that the algorithm is fairly good in efficiency and practicality. |
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| Keywords: | Image encryption DWT Chaotic sequence Pesudo-random sequence |
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