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基于混沌映射的数字图像置乱方法
引用本文:赵学峰. 基于混沌映射的数字图像置乱方法[J]. 微电子学与计算机, 2003, 20(8): 136-138
作者姓名:赵学峰
作者单位:西北师范大学数学与信息科学学院,兰州,730070
摘    要:文章提出了一种应用混沌映射在空间域对数字图像进行置乱的方法,在加密中利用分段线性映射由密钥生成混沌序列,然后以该序列为参数用面包师映射对图像矩阵置乱,其解密算法是加密算法的逆过程,实验显示该算法对图像加密具有良好的效果。

关 键 词:混沌映射  置乱变换  图像加密
修稿时间:2003-01-16

Digital Image Scrambling Method Based on Chaotic Mapping
ZHAO Xue-feng. Digital Image Scrambling Method Based on Chaotic Mapping[J]. Microelectronics & Computer, 2003, 20(8): 136-138
Authors:ZHAO Xue-feng
Abstract:A new method for scrambling digital image in the position space is proposed in this paper,which is based on chaotic mapping.In this method,the piecewise linear mapping is used to generate a chaotic sequence with the key,and the baker's mapping is used to scramble the image matrix with the created sequence.The decrypting operation is the reverse pro-cess of encryption.Experiments show that the proposed algo-rithm has satisfying effect for digital image encryption.
Keywords:Chaotic mapping  Scrambling Transformation  Digi-tal image encryption
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