一种结合签名的数字水印研究

A Study of a Digital Watermarking Combined with Signature

为了增强水印的安全性,提出了一种水印的签名生成、嵌入和认证方案,并结合奇异值分解和离散小波变换技术的数字水印算法,并验证了该方案的可行性。实验证明,在抵抗常见图像处理攻击方面表现出较好的鲁棒性和不可见性。

In order to enhance the security of the watermarking,a watermarking scheme with signature generation,embedding and authentication,combined with singular value decomposition and discrete wavelet transform was proposed.The experimental results demonstrate the robustness and invisibility of digital watermarking,and the signature watermarking can be reliably and explicitly extracted even though the watermarked image being deteriorated by commonly image processing.