摘要
提出了一种基于多小波变换的数字水印算法,将二值水印嵌入到宿主图像的多小波变换域中。首先将对应于相同位置的多小波系数形成向量序列,然后采用均值量化方法嵌入数字水印。实验结果表明,该水印算法在多种攻击下都具有较好的鲁棒性。
A digital watermarking method based on multi-wavelet transform is presented,which embeds the two-value watermarking into multi-wavelet transform domain, in the first place a vector sequence to multi-wavelet coefficients corresponding to the same position is composed, then watermark is embedded by using mean quantity method.The experimental result shows that the water marking has good robustness against different attacks.
出处
《天津工程师范学院学报》
2007年第4期5-7,共3页
Journal of Tianji University of Technology and Education
基金
天津工程师范学院科研基金资助项目(KJ2006032)
关键词
多小波变换
量化
数字水印
multi-wavelet transform
quantity
digital watermarking
