小波域内的双数字水印算法

Double Digital Watermarking Algorithm in Wavelet Domain

为了实现数字图像的版权保护和内容认证,本文提出了一种小波域内的双数字水印算法,利用奇异值分解实现小波域内鲁棒水印和脆弱水印的双重嵌入和提取。实验表明,该算法对一般的几何攻击和噪声攻击具有较好的鲁棒性。

For the copyright protection and content authentication of digital images,a dual digital watermarking algorithm is proposed in wavelet domain,which uses singular value decomposition to realize double embedding and extraction of robust watermark and fragile watermark in wavelet domain.Experiments show that the algorithm has good robustness to general geometric attacks and noise attacks.