摘要
提出一种基于小波傅里叶梅林变换的数字图像水印算法。该算法首先对宿主图像进行小波多分辨率分解,对低频逼近运用傅里叶梅林变换(Fourier-Mellin)并嵌入水印,同时在图像的中频带应用阈值法重复嵌入水印。实验表明:该算法对常规的一些攻击方法和几何攻击具有较好的鲁棒性,并且对jpeg2000静态图像压缩也具有较好的鲁棒性。
A digital image watermarking algorithm is proposed based on Wavelet- Fourier- Mellin transform. The algorithm performs mtdti - resolution on original image firstly, then do Fourier - Mellin transform on low frequency and embed the watermark.. On the while, embed watermark in the middle frequency repeafly Using the threshold way. Experiment results show that the algorithm can well resist not only nomal attacks and geometry attacks, but also the still image code standard -jpeg2000.
出处
《微处理机》
2006年第3期54-56,共3页
Microprocessors
