ROBUST ZERO-WATERMARK ALGORITHMS BASED ON NUMERICAL RELATIONSHIP BETWEEN ADJACENT BLOCKS  

作　　者：Zhang Yifeng Jia Chengwei Wang Xuechen Wang Kai Pei Wenjiang 

机构地区：[1]School of Information Science and Engineering, Southeast University

出　　处：《Journal of Electronics(China)》2012年第5期392-399,共8页电子科学学刊（英文版）

基　　金：Supported by the National Natural Science Foundation of China (No. 60672095, 60972165, and 61071111);the National High Technology Project of China (No. 2007AA-11Z210);the Doctoral Fund of Ministry of Education of China (No. 20100092120012 and 20070286004);the Foundation of High Technology Project in Jiangsu Province;the Natural Science Foundation of Jiangsu Province (No.BK2010240)

摘　　要：In this paper, three robust zero-watermark algorithms named Direct Current coefficient RElationship (DC-RE), CUmulant combined Singular Value Decomposition (CU-SVD), and CUmulant combined Singular Value Decomposition RElationship (CU-SVD-RE) are proposed. The algorithm DC-RE gets the feature vector from the relationship of DC coefficients between adjacent blocks, CU-SVD gets the feature vector from the singular value of third-order cumulants, while CU-SVD-RE combines the essence of the first two algorithms. Specially, CU-SVD-RE gets the feature vector from the relationship between singular values of third-order cumulants. Being a cross-over studying field of watermarking and cryptography, the zero-watermark algorithms are robust without modifying the carrier. Numerical simulation obviously shows that, under geometric attacks, the performance of CU-SVD-RE and DC-RE algorithm are better and all three proposed algorithms are robust to various attacks, such as median filter, salt and pepper noise, and Gaussian low-pass filter attacks.In this paper, three robust zero-watermark algorithms named Direct Current coefficient RElationship （DC-RE）, CUmulant combined Singular Value Decomposition （CU-SVD）, and CUmulant combined Singular Value Decomposition RElationship （CU-SVD-RE） are proposed. The algorithm DC-RE gets the feature vector from the relationship of DC coefficients between adjacent blocks, CU-SVD gets the feature vector from the singular value of third-order cumulants, while CU-SVD-RE combines the essence of the first two algorithms. Specially, CU-SVD-RE gets the feature vector from the relationship between singular values of third-order cumulants. Being a cross-over studying field of watermarking and cryptography, the zero-watermark algorithms are robust without modifying the carrier. Numerical simulation obviously shows that, under geometric attacks, the performance of CU-SVD-RE and DC-RE algorithm are better and all three proposed algorithms are robust to various attacks, such as median filter, salt and pepper noise, and Gaussian low-pass filter attacks.

关 键 词：Zero-watermark Singular value Third-order cumulants Feature vector 

分 类 号：TN919.8[电子电信—通信与信息系统]