DIGITAL WATERMARK ALGORITHM ANALYSIS BASED ON THE FRFT
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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立叶变换( F R F T ) 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.
Abstract:
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.
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孟晓,张春燕,申传家,等. 基于分数傅立叶变换的数字水印算法[J]. 科学技术与工程, 2010, (25): . Meng Xiao, Zhang Chunyan, Sheng Chuanjia, et al. DIGITAL WATERMARK ALGORITHM ANALYSIS BASED ON THE FRFT[J]. Science Technology and Engineering,2010,(25).