2021年 01期

摘要(Abstract)：

针对现有视频水印算法大多性能单一,无法兼顾不可见性、鲁棒性和水印容量等问题,提出一种均衡特征的动态视频水印算法;首先,利用颜色直方图差值法从视频序列中提取关键帧;其次,对关键帧和水印图像分别进行非下采样Contourlet变换、离散余弦变换以及离散平稳小波变换;最后,利用伪随机生成器随机生成水印嵌入块,在确定嵌入因子后,利用加性准则将水印信息自适应嵌入到动态块的低频子带系数,实现水印的嵌入。结果表明,该算法在保证水印不可见的前提下,不仅提高了水印的嵌入容量,而且对抵抗常见时、空域攻击具有较好的鲁棒性。

关键词(KeyWords)： 版权保护;均衡特征;非下采样Contourlet变换;水印嵌入块;视频水印

基金项目(Foundation): 国家自然科学基金项目(61305008);; 中央高校基本科研业务费专项资金项目(19CX02030A);; 山东省自然科学基金项目(ZR2018MEE004)

作者(Author): 郑秋梅,杨亚男,王风华,林超,曹学文

DOI: 10.13349/j.cnki.jdxbn.20200910.001

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