| 基于中心与邻域系数均值关系的盲水印算法 |
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| 引用本文： | 杨钒,薛模根,刘晓. 基于中心与邻域系数均值关系的盲水印算法[J]. 计算机仿真, 2009, 26(7): 146-148,255 |
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| 作者姓名： | 杨钒 薛模根 刘晓 |
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| 作者单位： | 解放军炮兵学院,安徽合肥,230031;解放军炮兵学院,安徽合肥,230031;解放军炮兵学院,安徽合肥,230031 |
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| 摘 要： | 为了能够更好的满足水印的鲁棒性和不可见性,提出了一种基于关系的DWT域盲水印算法,首先对原始图像进行二级小波变换,在小波系数的中频子带中,根据比较中心系数与邻域系数均值关系的方法来嵌入水印,水印嵌入前进行了最优置乩处理,使得修改的中频系数最少,从而保证了较好的不可见性.在水印的提取过程中无需参考原始图像,实现了全盲检测.通过对嵌入水印的图像进行加入噪声、滤波、压缩以及裁剪等大量图像处理实验,均能正确检测出水印,结果表明算法具有很好的感知效果以及较强的鲁棒性,可用于数字图像的版权保护.
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| 关 键 词： | 数字水印 小波变换 关系 盲榆测 |
A Blind Watermarking Algorithm Based on the Relationship of Center and Adjacent Coefficients |
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| YANG Fan,XUE Mo-gen,LIU Xiao. A Blind Watermarking Algorithm Based on the Relationship of Center and Adjacent Coefficients[J]. Computer Simulation, 2009, 26(7): 146-148,255 |
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| Authors: | YANG Fan XUE Mo-gen LIU Xiao |
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| Affiliation: | Artillery Academy of PLA;Hefei Anhui 230031;China |
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| Abstract: | A blind watermarking algorithm based on the relationship of coefficients in DWT Domain is proposed.Firstly,the original image is decomposed through three-layer wavelet transform,then the watermark is embedded according to comparing the relationship of center and adjacent coefficients in the middle-frequency coefficients of original image.The watermark has been scrambled optimally before embedding to guarantee a better invisibility,and it can be extracted from the watermarked image without the original image... |
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| Keywords: | Digital watermarking Wavelet transform Relationship Blind detection |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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