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A new weighted mean filter with a two-phase detector for removing impulse noise
Liu L.1; Chen C.L.P.1; Zhou Y.1; You X.2
2015
Source PublicationInformation Sciences
ISSN200255
Volume315Pages:1
Abstract

This paper proposes a new weighted mean filter with a two-phase noise detector for image denoising. Operations are carried out by the detection followed by filtering strategy. For detection, a two-phase noise detector is presented to detect impulse noise (IN). In the first phase, a rank-ordered difference of ROAD (ROD-ROAD) scheme is introduced for detecting noise candidates. Different from most of the existing IN detectors, the proposed detector identifies a pixel by a fuzzy rule that matches the stochastic nature of IN and greatly improves the denoising performance. In the second phase, a local image statistic minimum edge pixels difference (MEPD) is proposed to identify edge pixels from noise candidates. This preserves edges from being wrongly detected as noise; therefore, improves the detection accuracy. For filtering, we design a new weighted mean filter (WMF) that is more suitable for IN to suppress the detected noisy pixels. Finally, an iterative denoising algorithm is presented by combining the proposed two-phase noise detector and the new WMF. The proposed method is accessible and easy to implement. Experimental results show that the proposed method outperforms all the tested state-of-the-art denoising methods with respect to the visual effects and quantitative measure results. © 2015 Elsevier Inc. All rights reserved.

KeywordEdge Pixels Identification Fuzzy Noise Detector Image Denoising Impulse Noise Weighted Mean Filter
DOIhttp://doi.org/10.1016/j.ins.2015.03.067
URLView the original
Indexed BySCI
Language英语
WOS Research AreaComputer Science
WOS SubjectComputer Science, Information Systems
WOS IDWOS:000355499900001
The Source to ArticleScopus
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Citation statistics
Cited Times [WOS]:49   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionFaculty of Science and Technology
DEPARTMENT OF COMPUTER AND INFORMATION SCIENCE
Corresponding AuthorChen C.L.P.
Affiliation1.Univ Macau, Dept Comp & Informat Sci, Macau 999078, Peoples R China
2.Huazhong Univ Sci & Technol, Dept Elect & Informat Engn, Wuhan 430074, Peoples R China
First Author AffilicationUniversity of Macau
Corresponding Author AffilicationUniversity of Macau
Recommended Citation
GB/T 7714
Liu L.,Chen C.L.P.,Zhou Y.,et al. A new weighted mean filter with a two-phase detector for removing impulse noise[J]. Information Sciences,2015,315:1.
APA Liu L.,Chen C.L.P.,Zhou Y.,&You X..(2015).A new weighted mean filter with a two-phase detector for removing impulse noise.Information Sciences,315,1.
MLA Liu L.,et al."A new weighted mean filter with a two-phase detector for removing impulse noise".Information Sciences 315(2015):1.
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