基于BEMD-DWT-SVD的数字图像水印算法  

Digital image watermarking scheme based on BEMD-DWT-SVD

作　　者：魏金玉 郭现峰 高春琴 贺元 罗杰 WEI Jinyu;GUO Xianfeng;GAO Chunqin;HE Yuan;LUO Jie(School of Computer and Artificial Intelligence,Southwest Minzu University,Chengdu 610041,China)

机构地区：[1]西南民族大学计算机与人工智能学院,四川成都610041

出　　处：《西南民族大学学报(自然科学版)》2025年第2期216-224,共9页Journal of Southwest Minzu University(Natural Science Edition)

基　　金：四川省科技计划项目(2023NSFSC0471);西南民族大学中央高校项目(ZYN2025206)。

摘　　要：聚焦于研发高鲁棒性数字图像水印算法,以应对现有图像水印版权保护的不足.针对旋转和JPEG压缩攻击的鲁棒性挑战,提出了基于BEMD-DWT-SVD的数字图像水印方案.首先利用Arnold变换和二维DWT变换对水印信息进行加密,以达到提升水印图像的安全性;分别对载体和水印图像块进行SVD,再使用加法原则分别把水印图像块嵌入到载体图像块中,最后使用自适应阈值分割来获得水印图像.实验结果表明,该算法具有良好的水印嵌入效果,且在旋转攻击、JPEG压缩、滤波器和组合攻击等实验中,归一化相关性系数达到1,证明了算法的稳健性.This paper focused on the research and development of high robustness digital image watermarking algorithm to deal with the shortcomings of existing image watermarking copyright protection.A digital image watermarking scheme based on BEMD-DWT-SVD was proposed to overcome the robustness challenge of rotation and JPEG compression attacks.First,Arnold transform and two-dimensional DWT transform were used to encrypt the watermark information to improve the security of the watermark image;then SVD was applied to the carrier and watermark image blocks respectively,and then the watermark image blocks were embedded into the carrier image blocks by adding principle;finally the watermark image was watermarked by adaptive threshold segmentation.Experimental results showed that the algorithm had a good watermark embedding effect,and the normalized correlation coefficient reached 1 in the experiments of rotation attack JPEG compression filter and combined attack,which proved the robustness of the algorithm.

关 键 词：二维经验模态分解 离散小波变换 奇异值分解 鲁棒性 数字水印 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]