基于小波分解的嵌入式水印

本文提出了基于小波分解的嵌入式水印算法。该算法根据Watson关于小波系数量化噪声可见性的研究结果，将水印图像按不同的系数依次嵌入到原图像小波分解的重要系数上去。水印的检测是在图像不同层次的分解基础上，对比原始图像或同层次的分解实现的。实验表明，小波分解的嵌入式水印对高频滤波和噪声有较强的鲁棒性。

Embedded Watermarking Based on Wavelet

In this paper, a new algorithm for embedded watermarking based on wavelet decomposition is presented. Images of watermarking are embedded into the significant coefficients of the wavelet decomposition of the original picture according to different factors. We can detect watermarking on different levels by contrasting with the original picture. Experimental results show that this algorithm is more robust for high-frequency wave-filtering and noises.