Method and apparatus for despeckling an image

作者: Huanfeng Ma

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摘要: A method, computer readable medium, and device for reducing speckle in an image by detecting the edges of to create edge detected image, binarizing a binary processing, creating list, L, connected components C, list L that are smaller than predetermined number pixels, determining noise candidate pixels from covered computing histogram h e calculating threshold total marking C having pixel intensity as noise. The marked may then be removed setting background color image. Optionally, M N counted percentage p candidates is calculated p=M/N. processing only removes if more stops less percentage.

参考文章(9)
Stuart A. Schweid, Hui Cheng, Ying-wei Lin, Grayscale image de-speckle algorithm ,(2002)
A. Pizurica, W. Philips, I. Lemahieu, M. Acheroy, Despeckling SAR images using wavelets and a new class of adaptive shrinkage estimators international conference on image processing. ,vol. 2, pp. 233- 236 ,(2001) , 10.1109/ICIP.2001.958467
G. Ramponi, C. Moloney, Smoothing speckled images using an adaptive rational operator IEEE Signal Processing Letters. ,vol. 4, pp. 68- 71 ,(1997) , 10.1109/97.558641
Rafael C. Gonzalez, Richard E. Woods, Barry R. Masters, Digital Image Processing, Third Edition Journal of Biomedical Optics. ,vol. 14, pp. 029901- ,(2009) , 10.1117/1.3115362
O.D. Trier, A.K. Jain, Goal-directed evaluation of binarization methods IEEE Transactions on Pattern Analysis and Machine Intelligence. ,vol. 17, pp. 1191- 1201 ,(1995) , 10.1109/34.476511
M.R. Zaman, C.R. Moloney, A comparison of adaptive filters for edge-preserving smoothing of speckle noise IEEE International Conference on Acoustics Speech and Signal Processing. ,vol. 5, pp. 77- 80 ,(1993) , 10.1109/ICASSP.1993.319751
Alan J. Filipski, Marvin T. Ling, Michael E. Higgins, Philip B. Foster, Method and apparatus for automatic cleaning and enhancing of scanned documents ,(2000)