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http://dx.doi.org/10.6109/jkiice.2011.15.11.2474

A Study on Removing Impulse Noise using Modified Adaptive Switching Median Filter  

Gao, Yinyu (부경대학교 제어계측공학과)
Kim, Nam-Ho (부경대학교 제어계측공학과)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.15, no.11, 2011 , pp. 2474-2479 More about this Journal
Abstract
As society has developed rapidly toward a highly advanced digital information age, a multimedia communication service for acquisition, transmission and storage of image data as well as voice has being commercialized. However, image data is always corrupted by various noises during image processing, so researches for removing noises have been continued until now. In this paper, in order to remove impulse noise we proposed modified adaptive switching median filter that consists of two stages: noise detection and noise removal. Proposed algorithm only processes noise pixels and these noise pixels are replaced by filter output, so proposed algorithm performs well not only removes noise but also preserves edge information. Also we compare existing methods using PSNR(peak signal to noise ratio) as the standard of judgement of improvement effect and choose conventional algorithms to compare with our proposed method.
Keywords
Impulse noise; Noise free pixel; Noise removing; Edge;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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