期刊文献+

图像在Chirp-Fourier域的能量分布与Chirp水印算法研究 被引量:1

Energy Distribution of Image in Chirp-Fourier Domain and a Chirp Watermarking Algorithm
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摘要 分析了图像在Chirp-Fourier域的能量分布,给出空域Chirp水印嵌入参数选取与Chirp-Fourier域水印检测时的处理方法。仿真结果表明,按照给出的参数嵌入水印,水印算法的透明性好,检测快,对常见的图像处理鲁棒性较强。 The energy distribution of image in Chirp - Fourier domain is analysed and the method of watermark parameter choosing and detecting based on Chirp - Fourier transform is presented. The experimental results show that the proposed watermarking algorithm can make the watermark perceptual invisibility and be detected quickly, and it is also robust to some common image processing.
出处 《电讯技术》 2006年第4期79-83,共5页 Telecommunication Engineering
基金 国家自然科学基金资助项目(60472044)
关键词 图像处理 数字水印 CHIRP信号 Chirp-Fourier变换 image processing watermarking chirp signal chirp - Fourier transform
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参考文献5

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共引文献24

同被引文献8

  • 1朱春华,穆晓敏,张峰.基于修正Chirp-fourier变换的数字水印算法[J].计算机工程,2006,32(17):213-215. 被引量:5
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  • 3Zhang F, Mu X M, Yang S Y.Multiple-Chirp typed blind water- marking algorithm based on fractional Fourier transform[C]// Proceedings of 2005 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS2005, 2005 : 141-144.
  • 4Wang Dianhong, Li Dongming, Yan Jun, et al.An improved Chirp typed blind watermarking algorithm based on wave- let and fractional Fourier transform[C]//2007 Fourth Interna- tional Conference on Image and Graphics,ICIG2007,2007:291-296.
  • 5Deng Minghui,Zhen Jingbo.Robust digital image watermark- ing based on S transform[C]//2009 International Conference on Information Technology and Computer Science,ICS 2009, 2009 : 237-240.
  • 6Deng Minghui, Zhou Xiuli.The digital image watermarking algorithm based on Dopplerlet transform[C]//2010 Interna- tional Conference on Interlligent Computing and Cognitive Informatics, ICICCI2010,2010 : 428-431.
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  • 8朱春华,穆晓敏.Chirp-Fourier变换域的水印算法[J].计算机工程,2008,34(21):141-143. 被引量:1

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