Computer Engineering and Applications ›› 2010, Vol. 46 ›› Issue (5): 86-88.DOI: 10.3778/j.issn.1002-8331.2010.05.026

• 网络、通信、安全 • Previous Articles     Next Articles

Survey of watermarking blind detection on Wavelet transformation domain

ZHU Xiang-wei   

  1. Suzhou Campus,Nanjing Institute of Railway Technology,Suzhou,Jiangsu 215031,China
  • Received:2008-08-14 Revised:2008-12-15 Online:2010-02-11 Published:2010-02-11
  • Contact: ZHU Xiang-wei



  1. 南京铁道职业技术学院 苏州校区,江苏 苏州 215031
  • 通讯作者: 朱香卫

Abstract: This paper carries out the statistical analysis to the Wavelet transformation’s high frequency coefficient.The conclusion is that the Wavelet transformation’s high frequency coefficient conforms to the generalized Gaussian distribution,and conducts the estimation of marginal distribution and joint distribution of Wavelet coefficients via the method of maximum likelihood estimator.A watermarking blind detection frame on the Wavelet transformation domain is proposed.Experiments prove that Watermarking detector has a good detection performance based on the Wavelet transformation domain.

Key words: digital watermarking, Wavelet transformation, generalized Gaussian distribution, blind detection

摘要: 对Wavelet变换的高频系数进行统计分析,得出的结论是Wavelet变换的高频系数符合广义高斯分布,采用极大似然估计的方法对Wavelet变换系数的边缘分布和联合分布进行拟合,提出了一种Wavelet变换域水印盲检测框架。实验证明Wavelet变换域所提出水印检测器具备了良好的检测性能。

关键词: 数字水印, Wavelet变换, 广义高斯分布, 盲检测

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