Ranked directional morphological filtering of impulse noise in images

In this paper, we present a hybrid rank-order/morphological filtering algorithm for removal of impulse noise. It consists of an impulse noise detector and a weighted rank-order morphological filter. For salt (pepper) noise suppression, a generalized directional opening (closing) filter is selectivel...

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Bibliographic Details
Published in2000 IEEE International Conference on Acoustics, Speech, and Signal Processing. Proceedings (Cat. No.00CH37100) Vol. 4; pp. 2167 - 2170 vol.4
Main Authors Jinsung Oh, Chaparro, L.F.
Format Conference Proceeding
LanguageEnglish
Published IEEE 2000
Subjects
Adaptive filters
Detectors
Filtering algorithms
Image analysis
Image communication
Multi-stage noise shaping
Noise reduction
Noise shaping
Shape
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Summary:In this paper, we present a hybrid rank-order/morphological filtering algorithm for removal of impulse noise. It consists of an impulse noise detector and a weighted rank-order morphological filter. For salt (pepper) noise suppression, a generalized directional opening (closing) filter is selectively used. The detection of impulse noise is easily done using the difference between the signal and its opening and closing. Simulations show that this new filter performs better than other nonlinear filters in preserving desired image features while effectively reducing impulse noise.
ISBN:9780780362932
0780362934
ISSN:1520-6149
2379-190X
DOI:10.1109/ICASSP.2000.859266