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可视密码学的Contourlet域图像水印 被引量:3

Contourlet-domain image watermarking based on visual cryptography
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摘要 将可视密码学引入到水印的预处理中,提出了一种Contourlet域的安全性较高的图像水印算法。该算法首先根据可视密码理论将水印信息隐藏到一定数目的图片中,选取其中任一图片作为水印,然后对载体图像进行分块,通过聚类找出适合嵌入水印的块,并进行Contourlet变换,在变换系数的最大奇异值上嵌入水印。水印提取时只需用特定数目的图片对提取出的信息进行叠加,其过程无需大量计算和密码学知识。实验表明,该算法还具有抵抗噪声、滤波J、PEG压缩等常规攻击和抗剪裁等功能。 A more secure image watermarking scheme is proposed using the visual cryptography in the pretreatment of watermarking.Firstly,the visual cryptography is utilized to hide the watermarking into certain pictures and one of encryptive pictures is chosen as final watermarking.Then,some suitable blocks selected by fuzzy cluster from the deoriginal image are made Contourlet transforming.The watermarking is embedded on the maximal singular values of the coefficients.The watermarking detection is achieved just by superposing the detected information and the certain pictures.The process needn't a great number of operations and lots of cryptography knowledge.Experimental results show that the presented scheme also has high watermark robustness to clipping and common image processing operation such as noise adding,filtering,JPEG compressing.
出处 《计算机工程与应用》 CSCD 北大核心 2011年第1期170-172,214,共4页 Computer Engineering and Applications
基金 国家自然科学基金No.60372071 中国科学院自动化研究所复杂系统与智能科学重点实验室开放课题基金(No.20070101) 辽宁省教育厅高等学校科学研究基金(No.2008344) 大连市科技局科技计划项目(No.2007A10GX117)~~
关键词 数字水印 可视密码学 CONTOURLET变换 模糊聚类 奇异值 digital watermarking visual cryptography Contourlet transform fuzzy cluster singular values
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参考文献7

  • 1Hartung F,Kutter M.Multi-media watermarking techniques[J].Proceeding of the IEEE, 1999,87(7) : 1079-1094.
  • 2Do M N,Vetterli M.The contourlet transform:An efficient directional multiresolution image representation[J].IEEE Transactions on Image Processing, 2005,14 (6) : 760-769.
  • 3Po D D, Do M N.Directional multiscale modeling of images using the contourlet transform[J].IEEE Transactions on Image Processing,2006, 15(6) : 1610-1620.
  • 4Naor M, Shamir A.Visual cryptography[C]//LNCS 950: Cryptog-Eurocrypt' 94.Berlin: Springer, 1995 : 1-12.
  • 5Der-Chyuan L.Adaptive digital watermarking using fuzzy clustering technique[J].IEICE Trans on Fundamentals, 2001, E84-A(8) :2052-2060.
  • 6曾凡娟,周安民.基于Contourlet变换和奇异值分解的图像零水印算法[J].计算机应用,2008,28(8):2033-2035. 被引量:17
  • 7金炜,励金祥,尹曹谦.一种基于可视密码的轮廓小波图像零水印方案[J].光电子.激光,2009,20(5):653-656. 被引量:5

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