基于多小波变换和分块SVD的彩色图像水印算法  

A Color Image Watermarking Algorithm Based on Multi-Wavelet Transform and Block-SVD

作　　者：韩绍程 罗长杰 张兆宁[2] 王玉松 

机构地区：[1]中国民航大学基础实验中心,天津300300 [2]中国民航大学空中交通管理学院,天津300300

出　　处：《工程图学学报》2010年第2期128-133,共6页Journal of Engineering Graphics

基　　金：中国民航大学科研基金资助项目(07kym12);中国民航大学科研基金资助项目(09cauc_e10)

摘　　要：提出了一种基于多小波变换和分块SVD的非盲水印算法。选择彩色图像的饱和度分量作为水印的嵌入域,水印为有意义的灰度图像,水印经Arnold置乱后被嵌入到饱和度分量多小波变换的不同中频区域中。实验证明,该算法不仅对噪声、JPEG压缩、剪切及Photoshop处理具有很好的鲁棒性,而且能抵抗旋转、放缩和平移等几何攻击。A non-blind watermarking algorithm is proposed based on multi-wavelet transform and block singular value decomposition.Choosing the saturation component of a color image as the watermark embedding domain,the watermark is a meaningful grayscale image.After Arnold scrambling,watermark is embedded into the different mid-frequency regions of the saturation component which through multi-wavelet transform.The examples demonstrate that the algorithm not only has good robustness to the noise,JPEG compression,shear ...

关 键 词：计算机应用 图像水印 多小波变换 分块奇异值分解 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]