基于修正直方图不变矩的零水印算法  

Zero watermarking algorithm based on revised histogram invariant moments

作　　者：何冰[1] 

机构地区：[1]渭南师范学院物理与电气工程学院,陕西渭南714000

出　　处：《郑州轻工业学院学报（自然科学版）》2012年第3期58-61,73,共5页Journal of Zhengzhou University of Light Industry:Natural Science

基　　金：渭南师范学院科研计划项目(11YKS015);渭南师范学院研究生专项基金(10YKZ069)

摘　　要：为了降低基于不变矩的零水印算法的漏检率和误检率,提出了一种基于修正直方图不变矩零水印算法.该算法计算原始图像的直方图不变矩,并利用其构建零水印系统,然后用参考图像和测试图像之间的相关系数来修正直方图不变矩,利用修正后的直方图不变矩来检测水印.实验结果表明,本算法水印检测过程简单,具有较低的漏检率和虚警率,与传统的基于直方图不变矩的零水印算法相比,在抵抗常规信号处理和几何攻击方面具有较好的鲁棒性.A zero watermarking algorithm based on revised histogram invariant moments to resist geometric attacks was proposed in order to reduce the probability of dis-detectes and leak-detecting of zero watermarking. This algorithm calculates histogram invariant moments of original image and uses the histogram to construct zero watermarking system. The histogram invariant moments of test image is corrected by correlation coefficient of two images. The detection of watermarking system is achieved by calculating the revised histogram invariant moments. Simulation experiments demonstrated that watermarking detection was simple, had low dis-detecting rate and false alarm rate. The robust of proposed method is better than that of traditional histogram invariant moments in common signal processing and geometric attacks.

关 键 词：零水印算法 几何攻击 修正直方图不变矩 

分 类 号：TP91[自动化与计算机技术]