Wavelet packet transform-based robust video watermarking technique

被引：0
|
作者：
GAURAV BHATNAGAR
BALASUBRMANIAN RAMAN
机构：
[1] University of Windsor,Department of Electrical and Computer Engineering
[2] Indian Institute of Technology Roorkee,Department of Mathematics
来源：
Sadhana | 2012年 / 37卷
关键词：
Video watermarking; multiresolution analysis; wavelet packet transform; block mean intensity value;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In this paper, a wavelet packet transform (WPT)-based robust video watermarking algorithm is proposed. A visible meaningful binary image is used as the watermark. First, sequent frames are extracted from the video clip. Then, WPT is applied on each frame and from each orientation one sub-band is selected based on block mean intensity value called robust sub-band. Watermark is embedded in the robust sub-bands based on the relationship between wavelet packet coefficient and its 8-neighbour (D8) coefficients considering the robustness and invisibility. Experimental results and comparison with existing algorithms show the robustness and the better performance of the proposed algorithm.
引用
收藏
页码：371 / 388
页数：17
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