一种自适应数字水印算法的研究

Research on an algorithm of compound adaptive digital watermarking

提出了一种能在一幅图像中同时嵌入鲁棒性水印和易损性水印的复合型数字水印算法,并对两种水印的嵌入策略、嵌入过程、提取策略、提取过程进行实现和实验验证。验证结果表明:提出的复合型水印的嵌入算法以牺牲较少的水印鲁棒性为代价,实现了对原始图像的双重保护功能。

An algorithm of compound adaptive digital watermarking was presented, which can embed robust watermark and fragile watermark in one image simultaneously. This paper realized and verified two embedding tactics, courses of embedding, draw tactics, draw course. The result of verification indicated that the embedding algorithm of compound watermark sacrificed less robust watermark as a cost, which achieved the dual - protection function for the primordial images.