| 基于Arnold置乱和Hadamard变换的双水印信号预处理算法 |
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| 引用本文： | 罗锦,胡桂明,季宏杰.基于Arnold置乱和Hadamard变换的双水印信号预处理算法[J].网络安全技术与应用,2010(3):75-77. |
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| 作者姓名： | 罗锦 胡桂明 季宏杰 |
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| 作者单位： | 1. 广西大学电气工程学院,广西,530004
2. 济南钢铁集团运输部,山东,250101 |
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| 摘 要： | 本文介绍了一种基于Arnold置乱和Hadamard变换的双水印信号预处理算法,该算法能够将两个数字水印进行加密后混合编码,并且能互不影响地提取水印信号。文中给出了算法的详细步骤,最后通过Matlab进行了仿真实验。该算法易于实现,为多重水印信号的预处理提供了一种可行的方法。
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| 关 键 词： | 数字水印 Arnold置乱 Hadamard变换 码分多址 |
An algorithm of dual watermarking signal preprocessing based on Arnold scrambling and Hadamard transformation |
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| Luo Jin,Hu Guming,Ji Hongjie.An algorithm of dual watermarking signal preprocessing based on Arnold scrambling and Hadamard transformation[J].Net Security Technologies and Application,2010(3):75-77. |
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| Authors: | Luo Jin Hu Guming Ji Hongjie |
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| Affiliation: | 1.Electricity Engineering College of Guangxi University,guangxi,530004,China ;2.Transport Department of Jinan Iron and Steel Group Company,Shandong,250101,China ) |
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| Abstract: | The paper introduces an algorithm of dual watermarking signal preprocessing based on Arnold scrambling and Hadamard transformation.By this algorithm,two watermark images can be encryted,hybrid coded and extratced,but do not affect each other.In this paper,we offer the detailed steps of the algorithm,and simulate the algorithm with Matlab.It is easy to implement and provides a viable feasible method for multiple digital watermarking signal preprocessing. |
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| Keywords: | digital watermarking Arnold scrambling Hadamard transformation CDMA |
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