OALib Journal期刊
ISSN: 2333-9721
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基于Zernike矩的视频对象零水印算法
DOI: 10.11834/jig.20090918
Keywords: Zernike矩,零水印,视频对象,图像归一化
Abstract:
针对几何攻击所导致的水印不同步问题,提出了一种结合Zernike矩和图像归一化的有效视频对象水印算法。Zernike矩的幅度具有旋转不变性,缩放和平移不变性通过图像归一化取得。水印嵌入采用零水印方案,解决了基于Zernike矩的图像重构效果不理想和重构过程中复杂度高的问题。实验结果表明,该水印算法对旋转、缩放等几何操作具有鲁棒性,同时对压缩、滤波、高斯噪声等常见的图像处理操作也具有鲁棒性。
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