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 ...
出处
《工程图学学报》
CSCD
北大核心
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)
关键词
计算机应用
图像水印
多小波变换
分块奇异值分解
computer application
image watermarking
multi-wavelet transform
block singular value decomposition
