一种基于Shifted Legendre矩的数字水印算法  

Digital Watermarking Algorithm Based on Shifted Legendre Moments

作　　者：赵杰 杨滨峰 李亚文 何建强 ZHAO Jie;YANG Binfeng;LI Yawen;HE Jianqiang(School of Electronic Information and Electrical Engineering,Shangluo University,Shangluo 726000,China)

机构地区：[1]商洛学院电子信息与电气工程学院,陕西商洛726000

出　　处：《系统仿真技术》2020年第1期37-39,共3页System Simulation Technology

基　　金：商洛学院科研创新团队资助(19SCX03)。

摘　　要：提出了一种基于Shifted Legendre矩的抵抗几何攻击的数字水印算法,通过计算图像的低阶Shifted Legendre矩不变量来构建零水印系统。水印提取过程简单,只需计算所得图像的几个低矩不变量。文中给出了实验仿真结果,并与基于几何矩不变量的算法进行了比较。结果表明该方法简单、有效,对旋转、缩放、剪切等几何攻击以及JPEG压缩攻击具有较高的稳健性。The watermark algorithm based on Shifted Legendre moments was used in authentication context. The several lower order Shifted Legendre moments of the original image were computed,and zero watermarking system obtained followed. This encoder and decoder procedure was simple,and a few low order moments need to be calculated. Experimental results are compared with results of the scheme based on the geometric moments. Results show that this method is simple,effective,and has high robustness to geometrical attacks of rotation,scaling,shearing,and JPEG compression.

关 键 词：数字水印 几何攻击 矩 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]