一种基于双随机相位加密的全息水印算法A holographic watermarking algorithm based on double random phase encryption
黄福莹,唐振华,覃团发
摘要(Abstract)：
提出一种基于双随机相位加密的全息水印算法。首先应用双随机相位调制对原始水印进行加密产生全息水印图;然后将原始图像进行一级离散小波变换(DWT)获得低频子图,对低频子图进行分块的离散傅里叶变换(DFT)得到幅度谱;其次分别对幅度谱和全息水印图进行奇异值分解(SVD);最后将全息水印图的奇异值加权嵌入到幅度谱的奇异值。实验结果表明,该算法对旋转、平移、缩放等几何攻击具有较强的鲁棒性。
关键词(KeyWords)： 双随机相位;全息水印;低频子图;离散小波变换;离散傅里叶变换;奇异值分解
基金项目(Foundation): 国家自然科学基金(61461006)~~
作者(Author): 黄福莹,唐振华,覃团发
DOI: 10.16652/j.issn.1004-373x.2018.12.008
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