Volume 6 Number 6 (Jun. 2011)
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JSW 2011 Vol.6(6): 1117-1124 ISSN: 1796-217X
doi: 10.4304/jsw.6.6.1117-1124

Image Denoising Algorithm Based on Dyadic Contourlet Transform

Hui Fan1, Yongliang Wang2, Jinjiang Li2
1Shandong Institute of Business and Technology, Yantai, China
2Shandong Normal University, Jinan, China

Abstract—This paper constructs a dyadic non-subsampled Contourlet transform for denoising on the image. The transformation has more directional subband, using the non-subsampled filter group for decompositing of direction, so it has the translation invariance, eliminated image distortion from Contourlet transform’s lack of translation invariance. Non-subsampled filter reduces noise interference and data redundancy. Using the feature of NSCT translation invariance, multiresolution, multidirection, and can according to the energy of NSCT in all directions and in all scale, adaptive denoising threshold. Experimental results show that compared to wavelet denoising and traditional Contourlet denoising, the method achieves a higher PSNR value, while preserving image edge details, can effectively reduce the Gibbs distortion, improve visual images.

Index Terms—component, Image denoising, Dyadic contourlet, Wavelet, Threshold value


Cite: Hui Fan, Yongliang Wang, Jinjiang Li, "Image Denoising Algorithm Based on Dyadic Contourlet Transform," Journal of Software vol. 6, no. 6, pp. 1117-1124, 2011.

General Information

ISSN: 1796-217X (Online)
Frequency: Monthly (2006-2019); Bimonthly (Since 2020)
Editor-in-Chief: Prof. Antanas Verikas
Executive Editor: Ms. Yoyo Y. Zhou
Abstracting/ Indexing: DBLP, EBSCO, Google Scholar, ProQuest, INSPEC, ULRICH's Periodicals Directory, WorldCat, etc
E-mail: jsw@iap.org
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