An adaptive digital watermark algorithm based on fast wavelet transform

被引：0
|
作者：
Feng Dengchao [1 ]
Yang Zhaoxuan [1 ]
He Yinghua [1 ]
机构：
[1] Tianjin Univ, Sch Elect & Informat Engn, Tianjin 300072, Peoples R China
来源：
Proceedings of the First International Symposium on Test Automation & Instrumentation, Vols 1 - 3 | 2006年
关键词：
digital watermark; fast wavelet transform; multi-resolution analysis; human visual system;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
An adaptive digital watermark algorithm based on fast wavelet transform is proposed for copyright protection of the digital multimedia and information safety of digitized acoustical image data. By using color image as watermark information. this algorithm analyzes watermark images and origin color images separately with multi-resolution analysis characteristic of wavelet, by which watermark coefficients are embeded and abstracted. Experiment results show that the digital watermark embeded into color images by this algorithm has perfect imperceptibility, and also has strong robustness against such image processing as random noise and cutting attack.
引用
收藏
页码：31 / 35
页数：5
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