摘要
随着多媒体技术和互联网的飞速发展,基于数字水印技术的多媒体信息版权保护成为一个研究热点。其中数字水印是一种版权保护和信息安全的一种有效手法。分析了一种基于分数阶傅里叶变换(FRFT)的乘性水印算法,仿真实验结果证明,算法具有很好的安全性和不可见性,不仅可以很好的抵抗常用的信号处理操作,对几何攻击也有很好的鲁棒性.
With the rapid development of the multimedia technology and Internet-based,copyright protection multimedia information of digital watermarking has been to a hotspot.Which digital watermark is an effective way of a copyright protection and information security.Analysis based on fractional Fourier transform （FRFT） multiplicative watermarking algorithm,simulation results show that it has a good safety and invisibility,not only very good resistance to commonly used signal processing,and operations on the geometric attacks also has robustness.
出处
《科学技术与工程》
2010年第25期6297-6299,共3页
Science Technology and Engineering
