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Removal of Impulse Noise using Iterative Unsymmetrical Trimmed Median Filter

by Glincy Mary Jacob, Tony Sam Thomas, Rahna K.m
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International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 89 - Number 12
Year of Publication: 2014
Authors: Glincy Mary Jacob, Tony Sam Thomas, Rahna K.m
10.5120/15686-4556

Glincy Mary Jacob, Tony Sam Thomas, Rahna K.m . Removal of Impulse Noise using Iterative Unsymmetrical Trimmed Median Filter. International Journal of Computer Applications. 89, 12 ( March 2014), 43-48. DOI=10.5120/15686-4556

@article{ 10.5120/15686-4556,
author = { Glincy Mary Jacob, Tony Sam Thomas, Rahna K.m },
title = { Removal of Impulse Noise using Iterative Unsymmetrical Trimmed Median Filter },
journal = { International Journal of Computer Applications },
issue_date = { March 2014 },
volume = { 89 },
number = { 12 },
month = { March },
year = { 2014 },
issn = { 0975-8887 },
pages = { 43-48 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume89/number12/15686-4556/ },
doi = { 10.5120/15686-4556 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T22:09:05.723258+05:30
%A Glincy Mary Jacob
%A Tony Sam Thomas
%A Rahna K.m
%T Removal of Impulse Noise using Iterative Unsymmetrical Trimmed Median Filter
%J International Journal of Computer Applications
%@ 0975-8887
%V 89
%N 12
%P 43-48
%D 2014
%I Foundation of Computer Science (FCS), NY, USA
Abstract

It is universally accepted that Median filter is the best filter known so far. Based on this fact many variants of median filter were developed to improve the performance of the standard median filter. In this paper a new approach for the restoration of gray scale and color images that are highly corrupted by impulse noise is proposed. The algorithm works on low density noise also. The algorithm has three stages – firstly, finding the corrupted pixels, secondly de-noising the corrupted pixels; thirdly, minimizing the de-noised image to root image. The article proves that the new approach is guaranteed to converge to root image within a finite number of iterations. The proposed algorithm shows better results than the Standard Median Filter, Recursive Median Filter and Decision based Unsymmetrical Trimmed Median Filter.

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Index Terms

Computer Science
Information Sciences

Keywords

Decision based algorithm Median Filter Recursive median filtering salt and pepper noise unsymmetrical trimmed median filter.

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