一种基于Wavelet-SVD数字水印算法的MATLAB实现

The MATLAB Implementation Based on the Digital Watermarks of Wavelet-SVD

提出一种Wavelet和SVD结合的水印算法,首先对原图像和置乱的水印图像分别进行两次相同的Wavelet变换,对他们的低频均进行奇异值分解,通过奇异值加权得到含水印图像,实验表明,此算法对常规的攻击具有很好的鲁棒性。

The watermarking algorithm is proposed based on Wavelet-SVD.Fish the thesis introduces that the watcrmark image and the scrambled watermark is conducted the same wavelet transformation. The low-frequency is conducted SVD. The embeded image is got hy the singalar value weighted. The experiments show that this algorithm has better robust against lhe common attatcks.