计算机工程Issue(5)：169-174,6.DOI:10.3969/j.issn.1000-3428.2015.05.031
基于离散余弦变换的可移除数字视频水印算法
Removable Digital Video Watermark Algorithm Based on Discrete Cosine Transform
王颖 1袁开国 2席敏超3
作者信息
- 1. 国核电力规划设计研究院信息文档中心，北京100095
- 2. 北京邮电大学计算机学院，北京100876
- 3. 北京华大智宝电子系统有限公司，北京100015
- 折叠
摘要
Abstract
To evaluate the performance of watermark algorithm, robustness and transparency is a couple of very important standards. As in many proposed algorithms, the insurance of transparency is based on the reduction of robustness. This paper describes a removable video watermark algorithm. This algorithm can solve the problem mentioned before. To improve the robustness, the proposed algorithm does not limit the strength of watermark embedding. Before the video playing, the watermark in the media is removed according to the user ’ s secret key, unauthorized key will lead to an additional distortion on video,which improves the security of the watermark algorithm. Experimental results imply the proposed algorithm has strong robustness against to the process of resolution change, recoding and bit-rate decreasing.关键词
可逆水印/可移除水印/视频水印/码分多址/离散余弦变换Key words
revisable watermark/removable watermark/video watermark/Code Division Multiple Access (CDMA)/Discrete Cosine Transform(DCT)分类
信息技术与安全科学引用本文复制引用
王颖,袁开国,席敏超..基于离散余弦变换的可移除数字视频水印算法[J].计算机工程,2015,(5):169-174,6.
