基于广义高斯分布模型的小波域自适应盲水印方案  

An Adaptive Watermarking Scheme Based on General Gauss Distribution Model of Wavelet Coefficients

作　　者：范俊峰[1] 赵友军[1] 邸兰振[1] 

机构地区：[1]中国科学院研究生院,北京100039

出　　处：《微电子学与计算机》2006年第5期160-162,共3页Microelectronics & Computer

摘　　要：文章提出了一种基于小波系数广义高斯分布模型的自适应盲检测算法。算法通过估计小波各个子带广义高斯分布模型的形状参数,采用局部最优检测器,实现了小波域盲水印的自适应检测。仿真实验结果证明了该方案比符号相关检测器具有更好的鲁棒性。In this paper, an adaptive watermarking scheme based on the general Gauss distribution model of wavelet coefficients is proposed. With the estimate of the shape parameter of subset of wavelet eoefficients, a locally optumum detection is used. It is adaptive detection to the images and the subset of the coefficients. It is shown with experiments that the new blind watermarking scheme both has the good transparency and robustness.

关 键 词：数字水印 DWT 盲水印 广义高斯分布 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]