| 一种新的PBW图像盲水印算法 |
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| 引用本文： | 刘红岩,张建伟,刘铁柱.一种新的PBW图像盲水印算法[J].计算机应用与软件,2009,26(5). |
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| 作者姓名： | 刘红岩 张建伟 刘铁柱 |
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| 作者单位： | 南京信息工程大学数理学院,江苏,南京,210044 |
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| 摘 要： | 介绍一种新的PBW水印理论.传统的水印方法是由水印自身携带信息,而在PBW方法中信息与图像中嵌入水印的位置有关,可以选择较好的代表信息的位置去嵌入水印.为了更有效地提取水印信息,还可选择与宿主图像相关度最低的水印作为较好的水印进行嵌入.将PBW方法与扩展谱方法进行对比分析,并在小波变换域进行实验.大量实验结果表明,与传统的扩展谱方法相比,该方法具有更好的鲁棒性和透明性,特别对串谋攻击有很好的鲁棒性.
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| 关 键 词： | 数字水印 CDMA水印 |
A NOVEL PBW IMAGE BLIND WATERMARKING ALGORITHM |
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| Liu Hongyan,Zhang Jianwei,Liu Tiezhu.A NOVEL PBW IMAGE BLIND WATERMARKING ALGORITHM[J].Computer Applications and Software,2009,26(5). |
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| Authors: | Liu Hongyan Zhang Jianwei Liu Tiezhu |
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| Affiliation: | College of Mathematics and Physics;Nanjing University of Information Science and Technology;Nanjing 210044;Jiangsu;China |
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| Abstract: | In the paper it proposes a theory of PBW watermarking.In contrast to traditional watermarking approaches where the information is carried by watermark itself,in the proposed positional approach,the information is related to the position of the embedded watermarks in image.In order to improve the extraction performance of watermark information,we proposed to choose the best available watermark which has the least correlation to host image to be embedded in a particular image.PBW approach was contrastively an... |
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| Keywords: | PBW |
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