一种基于广义高斯分布的自调节盲水印检测算法

一种基于广义高斯分布的自调节盲水印检测算法

汪太月, 李宏伟

中国地质大学数理学院, 武汉 430074

收稿日期:2006-04-30 修回日期:1900-01-01 出版日期:2007-03-26 发布日期:2007-03-26
通讯作者: 李宏伟

An Adaptive Detection Algorithm for Blind WatermarkBased on Generalized Gaussian Distribution

WANG Taiyue, LI Hongwei

School of Mathematics and Physics, China University of Geosciences, Wuhan 430074, China

Received:2006-04-30 Revised:1900-01-01 Online:2007-03-26 Published:2007-03-26
Contact: LI Hongwei

摘要/Abstract

摘要： 根据数字图像离散余弦变换域交流系数的广义高斯分布模型, 在符号检测器和线性相关检测器的基础上, 提出一种盲水印自调节的检测算法, 并推导出该检测器有较高的检测效率. 实验表明, 该调节检测器的性能优于线性检测器的性能.

关键词: 广义高斯分布, 盲图像水印, 渐近相对效率

Abstract: Applying generalized Gaussian distribution to statistical model of the Alternating current coefficientof discrete cosine transform, an adaptive blind watermark detection algorithm is presented on the basis of sign detector and linear correlate detector and its probability efficiency is deduced. The experimental results show that the performance of the new detector is better than that of linear correlate detector.

Key words: generalized Gaussian distribution, blind image watermarking, asymptotic relative efficiency

中图分类号:

TP391

汪太月, 李宏伟. 一种基于广义高斯分布的自调节盲水印检测算法[J]. J4, 2007, 45(02): 229-233.

WANG Taiyue, LI Hongwei. An Adaptive Detection Algorithm for Blind WatermarkBased on Generalized Gaussian Distribution[J]. J4, 2007, 45(02): 229-233.

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