期刊文献+

基于小波-Contourlet变换的图像增强算法 被引量:6

Image enhancement using wavelet based contourlet transform
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摘要 小波-Contourlet变换能够良好捕获图像的方向特征和边缘信息。利用小波-Contourlet变换良好的多尺度性和多方向性特征,提出一种基于小波-Contourlet变换的图像增强算法,用非线性增强算子对变换的各子带系数做增强处理。并引入了循环平移消除由于小波-Contourlet变换缺乏平移不变性而产生的图像失真。实验结果表明,该方法有效增强了图像的边缘细节和纹理特征。 A new algorithm ofimage enhancement using wavelet based contourlet transforrn is proposed. Wavelet based contourlet transform is applied for its good property of capturing image's edges and texture, A non-linear operator is used to enhance the coefficients of the transform. Because the transform is not shift-invariant, cycle spinning is employed to restrain the distortion near the image edges. The experiments show that the algorithm proposed gets good results and enhances the image's details and texture.
出处 《计算机工程与设计》 CSCD 北大核心 2008年第12期3142-3144,共3页 Computer Engineering and Design
基金 国家自然科学基金项目(60473102) 安徽省高等学校自然科学研究基金项目(2005KJ005ZD) 安徽省自然科学基金项目(070412065) 安徽省教育厅自然科学研究基金项目(2006KJ030B)
关键词 图像增强 小波-CONTOURLET变换 非线性增强算子 循环平移 平移不变性 image enhancement wavelet based contourlet transform non-linear operator cycle spinning shift-invariant
  • 相关文献

参考文献8

  • 1Eslami R,Radha H.Wavelet based Contourlet Transform and it's Application to Image Coding[C].Singapore:IEEE International Conference on Image Processing,2004:3189-3192. 被引量:1
  • 2Eslami R, Radha H, Wavelet based contourlet coding using an SPIHT-like algorithm[C]. Singapore:IEEE International Conference on Image Processing,2004. 被引量:1
  • 3Do M N,Vetterli M.The contourlet transform:An efficient directional multiresolution image representation [C]. IEEE Trans on Image Processing,2004. 被引量:1
  • 4Eslami R,Radha H.The contourlet transform for image de-noising using cycle spinning[C]. Pacific Grove,USA:Asilomar Conference on Signals,Systems,and Computers,2003:1982-1986. 被引量:1
  • 5Fletcher A K,Ramchandran K,Goyal V K.Wavelet denoising by recursive cycle spinning[C]. Rochester, NY:Proc IEEE International Conference Image Processing,2002:873-876. 被引量:1
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  • 7梁栋,沈敏,高清维,鲍文霞,屈磊.一种基于Contourlet递归Cycle Spinning的图像去噪方法[J].电子学报,2005,33(11):2044-2046. 被引量:38
  • 8Jean-Luc Starck, Fionn Murtagh,Emmamuel Let al.Gray and color image contrast enhancement by the curvelet transform [J]. IEEE Transactions on Image Processing,2003,12(6):706-717. 被引量:1

二级参考文献7

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共引文献37

同被引文献34

  • 1梁栋,沈敏,高清维,鲍文霞,屈磊.一种基于Contourlet递归Cycle Spinning的图像去噪方法[J].电子学报,2005,33(11):2044-2046. 被引量:38
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  • 8Eslani R,Radha H.Wavelet-based contourlet trailsform and its application to image coding[C].Proc of IEEE International Conference on Image Processing,2004:3189-3192. 被引量:1
  • 9DO M N, VETI'ERLI M. The contourlet transform:an efficient directional multimsolution image representation[ J ]. IEEE Trans on Image Processing, 2(305,14(12) :3091 -2106. 被引量:1
  • 10'ESLAMI R,RADHA H. The contourlet transform for image denoising using cycle spinning[ J ]. Signals, Systems and Computers, the Thirty - Seventh Asilomar Conference ,2003,11 (2) : 1982 - 1986. 被引量:1

引证文献6

二级引证文献12

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