Realization of Digital Image Watermarking Encryption Algorithm Using Fractional Fourier Transform
This paper discussed the definition of fractional Fourier transform(FRFT), the basic principles of the watermark, analysis approach of the energy distribution, magnitude and other characteristics in Fractional Fourier Domain. On this basis, random sequence watermarking algorithm by using Fractional Fourier Transform was proposed, and simulation experiments was carried. Experimental results show that the algorithm has a certain degree of robustness on conventional image processing such as JPEG compression, Gaussian low-pass filter. At the same time, it can increase the security and maneuverability of the watermark while change the order arbitrarily.
watermarking fractional Fourier transform(FRFT) image characteristics
Wu Bo XiaoMing Cui Chao Zhang
School of Automation Harbin University of Science and Technology Harbin,China
国际会议
The 6th International Forum on Strategic Technology(IFOST 2011)(第六届国际战略技术论坛)
哈尔滨
英文
822-825
2011-08-22（万方平台首次上网日期，不代表论文的发表时间）