基于脊波变换和图像置乱的数字水印算法

Based on the Ridge of Wavelet Transform and Crambling Digital Watermarking Algorithm

数字水印是当今多媒体产权保护的一项关键技术,脊波变换的理论是小波分析理论的延伸和发展,图像置乱是对静态图像信息进行加密保护的一项非常可靠的技术.本文基于脊波变换和图像置乱技术提出了一种变换域数字水印算法,并经仿真试验证实,该算法具有良好的不可见性,不错的鲁棒性,可以有效抵御常见的攻击.

Multimedia digital watermarking is a key technology for protecting property rights,chiropractors wavelet transform theory is an extension and development of wavelet analysis theory,image scrambling static image of a very reliable information protectad by encryption technology.Based on the ridge of wevelet transform and scrambling digital watermark technology presents a transform domain algorithm,and simulation tests confirmed that the algorithm is not good visibility,good robustness,we can effectively resist common attacks.