| 基于离散小波变换的数据库水印检测算法 |
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| 引用本文： | 姜传贤,陈孝威.基于离散小波变换的数据库水印检测算法[J].控制与决策,2009,24(7). |
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| 作者姓名： | 姜传贤 陈孝威 |
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| 作者单位： | 贵州大学,计算机科学与技术学院,贵阳,550025 |
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| 摘 要： | 为了克服空域水印技术的不足,提出一种基于离散小波变换的关系数据库水印算法.根据过滤规则,从关系数据库中抽取某一类的数据,组成二维信号,将水印嵌入到二维信号的小波域中.使用该算法嵌入的数字水印具有很好的隐蔽性,对原始载体的影响很小.同时,嵌入的数字水印具有较好的鲁棒性,常规的数据库的处理方法对其影响较弱.
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| 关 键 词： | 关系数据库水印 离散小波变换 信息检测 数值型属性 |
New algorithm for relational database watermarking based on DWT |
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| JIANG Chuan-xian,CHEN Xiao-wei.New algorithm for relational database watermarking based on DWT[J].Control and Decision,2009,24(7). |
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| Authors: | JIANG Chuan-xian CHEN Xiao-wei |
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| Affiliation: | School of Computer Science and Technical;Guizhou University;Guiyang 550025;China. |
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| Abstract: | In order to enhance the robustness of database watermark,the paper proposes a relational database watermarking algorithm based on discrete wavelet transform(DWT).Some types of data are selected from the relational database according to filtering rules,and two-dimension signal is formed.Then,the watermark is embedded into the wavelet domain of two-dimension signal.Experimental results show that the embedded digital watermarks with the proposed algorithm are invisible and robust enough against the commonly us... |
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| Keywords: | Relational database watermarking DWT Information detecting Numerical attribute |
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