文中提出一种基于小波的二值图像盲数字算法,首先引出小波变换理论的小波变换域的方法,以保证水印的不可见性和鲁棒性,并进行Arnold变换来对抗几何攻击,试验表明,这种水印算法是具有较强的安全性,并能保证二值图像质量有较强的鲁棒性。
This paper presents a new digital binary image blindly watermarking algorithm based on wavelet.First, it introduces the wavelet transform domain method to increase the unobtrusiveness and robustness.Second,it uses the Amold transform to against the geometric attacks. Experimental results show the proposed algorithm has strong security and very robust to common brinary image guality.