Two-dimensional rank-conditioned median filter

A version of 2-D median filter specialized to impulse noise removal introducing negligible distortion in noise-free pixels is proposed. Only pixels of prefixed ranks are replaced with the local median. When extreme ranks (min and max) are chosen, spikes are selectively suppressed, more efficiently t...

Full description

Saved in:
Bibliographic Details
Published inIEEE transactions on circuits and systems. 2, Analog and digital signal processing Vol. 42; no. 2; pp. 130 - 132
Main Authors Alparone, L., Baronti, S., Carla, R.
Format Journal Article
LanguageEnglish
Published New York, NY IEEE 01.02.1995
Institute of Electrical and Electronics Engineers
Subjects
Applied sciences
Circuit noise
Circuit properties
Convergence
Digital filters
Digital images
Distortion
Electric, optical and optoelectronic circuits
Electronic circuits
Electronics
Error probability
Exact sciences and technology
Frequency filters
Image converters
Noise level
Pixel
Signal processing
Theoretical study
Image processing
Median filter
Digital filters
Burst noise
Two dimensional structure
Online AccessGet full text

Cover

More Information
Summary:A version of 2-D median filter specialized to impulse noise removal introducing negligible distortion in noise-free pixels is proposed. Only pixels of prefixed ranks are replaced with the local median. When extreme ranks (min and max) are chosen, spikes are selectively suppressed, more efficiently than by median filter. Error probability for salt/pepper noise is theoretically derived. MAE and visual comparisons with median filter attest increased accuracy.< >
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1057-7130
1558-125X
DOI:10.1109/82.365355