Hu修正不变矩在零水印中的应用

文章提出了一种使用修正后的Hu新增不变矩零水印算法。该算法融合Hu不变矩及其新增的几个不变矩的特征矢量,提出了一种基于Hu修正不变矩的零水印算法。该方法保持了原有Hu矩的平移、尺度、旋转不变性,比原有的Hu不变矩包含了更多的细节信息用于更全面地描述图像。通过对该算法进行了一系列加噪、滤波以及JPEG压缩等仿真实验,结果表明该算法对常规的信号处理和几何攻击在鲁棒性上比原始7个Hu不变矩都有一定的提高。

Application of New Hu Revised Invariant Moments in Zero Digital Watermarking

This paper proposes a zero watermarking algorithm using new Hu invariant moments.It combines the features of Hu invariant moment and few of new invariant moments to form a more complete feature vectors.This method maintained the original Hu moment translation,scaling and rotational invariance of original Hu invariant moments,but also contain more detail information than the original Hu invariant moments.The algorithm through a series of adding noise,filtering and JPEG compression simulation,The results show that the algorithm of the conventional signal processing and geometric attacks is better robustness than the original seven Hu moment invariants have some improvement.