| 多级多维DCT域的视频水印方案 |
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| 引用本文： | 蓝鹏,张贵仓.多级多维DCT域的视频水印方案[J].计算机安全,2011(1):21-23. |
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| 作者姓名： | 蓝鹏 张贵仓 |
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| 作者单位： | 西北师范大学数学与信息科学学院; |
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| 基金项目： | 甘肃省自然科学基金资助项目(0803RJZA109); 甘肃省科技攻关项目(2GS035-A052-011) |
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| 摘 要： | 利用DCT能量集中的特性,提出了基于多级多维DCT的视频水印算法.在视频帧内、帧间进行分级,在每一级采取不同维数的DCT变换,生成DCT系数立方体,选择适当的DCT系数实现水印信息的嵌入.实验证明,该方案较之直接3D-DCT域水印方案具有较高的视觉掩蔽性以及较强的鲁棒性.
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| 关 键 词： | DCT 多级多维DCT 视频水印 鲁棒性 |
A Video Watermarking Method on Multilevel and Multidimensional DCT Domain |
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| LAN Peng,ZHANG Gui-cang.A Video Watermarking Method on Multilevel and Multidimensional DCT Domain[J].Network & Computer Security,2011(1):21-23. |
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| Authors: | LAN Peng ZHANG Gui-cang |
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| Affiliation: | LAN Peng,ZHANG Gui-cang(College of Mathematics and Information Science,Northwest Normal University,Lanzhou,Gansu 730070,China) |
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| Abstract: | This paper presents a novel video watermarking method based on multilevel and multidimensional DCT,by using the property of energy convergence of discrete cosine transformation(DCT).Firstly,the video frames are partitioned into some classes.Then,According to the classes,the data of video frame are processed by using DCT in different dimension.Finally,the watermark information are embedded into the DCT coefficients produced in the last step.Experimental studies show that the watermarked video is highly imper... |
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| Keywords: | DCT multilevel and multidimensional DCT video watermarking robustness |
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