基于Fibonacci置乱的小波域数字图像盲水印算法  

Blind Watermarking Algorithm for Digital Image Based on Fibonacci Scrambling in Wavelet Domain

作　　者：王倩[1] 于来行[1,2] 曹彦 张磊 秦杰[1] 叶海琴[1] WANG Qian;YU Lai-hang;CAO Yan;ZHANG Lei;QIN Jie;YE Hai-qin(College of Computer Science and Technology,Zhoukou Normal Universit;College of Computer Science and Technology,Faculty of Electronic Information and Electrical Engineering,Dalian University of Technolog;College of Computer Science and Technology,Nanjing University of Aeronautics and Astronautic;School of Computer and Information Engineering,Henan Universit)

机构地区：[1]周口师范学院计算机科学与技术学院,河南周口466001 [2]大连理工大学电子信息与电气工程学部计算机科学与技术学院,辽宁大连116024 [3]南京航空航天大学计算机科学与技术学院,南京211106 [4]河南大学计算机与信息工程学院,河南开封475004

出　　处：《计算机科学》2018年第6期135-140,共6页Computer Science

基　　金：国家自然科学基金项目(U1504613); 河南省高校科技创新团队计划项目(17IRTSTHN009); 河南省科技攻关项目(182102210601)资助

摘　　要：针对数字图像的版权保护问题,提出一种基于Fibonacci置乱的小波域数字图像盲水印方案。将原图像中的感兴趣区域(ROI)作为水印来源,以此提高水印的隐蔽性。在水印嵌入过程中,将原图像进行分块,对每个块进行Fibonacci置乱和离散小波变换(DWT),选择出低频子带,用于水印嵌入。同时,对水印也执行DWT,选择出低频子带,通过Fibonacci置乱得到置乱矩阵,将水印的置乱矩阵嵌入到主图像的块中。在水印提取过程中,根据嵌入过程中设定的秘钥,通过逆Fibonacci置乱和逆DWT过程提取水印。在多种图像攻击下的仿真结果表明,该水印方案具有较高的安全性、鲁棒性和隐蔽性。For the copyright protection problem of digital image,a blind digital watermarking scheme based on Fibonacci scrambling in wavelet domain was proposed.The region of interest（ROI）of original image is used as the watermarking source to improve the concealment of twatermark.In the watermark embedding process,the original image is divided into blocks,Fibonacci scrambling and discrete wavelet transform（DWT）are performed for each block,and low frequency sub-band is selected for watermark embedding.At the same time,DWT is also executed for the watermark,the low frequency sub-band is selected,and the scrambled matrix is obtained by Fibonacci scrambling,which will be embedded into the block on the main image.In the watermark extraction process,according to the secret key set in the embedding process,the inverse Fibonacci scrambling and inverse DWT process are used to extract the watermark.The simulation results show that the watermarking scheme has high security,robustness and concealment.

关 键 词：数字图像 盲水印 Fibonacci置乱 离散小波变换 水印嵌入 水印提取 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]