The Effect of Median Filtering on Edge Estimation and Detection

Alan Conrad Bovik; Thomas S. Huang; David C. Munson

doi:10.1109/TPAMI.1987.4767894

The Effect of Median Filtering on Edge Estimation and Detection

Alan Conrad Bovik, Thomas S. Huang, David C. Munson

Research output: Contribution to journal › Article › peer-review

Abstract

In this paper we consider the effect of median prefiltering on the subsequent estimation and detection of edges in digital images. Where possible, a quantitative statistical comparison is made for a number of filters defined with two-dimensional geometries; in some cases one-dimensional analyses are required to illustrate certain points. Noise images prefiltered by median filters defined with a variety of windowing geometries are used to support the analysis, and it is found that median prefiltering improves the performance of both thresholding and zero-crossing based edge detectors.

Original language	English (US)
Pages (from-to)	181-194
Number of pages	14
Journal	IEEE transactions on pattern analysis and machine intelligence
Volume	PAMI-9
Issue number	2
DOIs	https://doi.org/10.1109/TPAMI.1987.4767894
State	Published - Mar 1987
Externally published	Yes

Keywords

Computer vision
edge detection
image processing
median filter
order statistics

ASJC Scopus subject areas

Software
Computer Vision and Pattern Recognition
Computational Theory and Mathematics
Artificial Intelligence
Applied Mathematics

Online availability

10.1109/TPAMI.1987.4767894

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AB - In this paper we consider the effect of median prefiltering on the subsequent estimation and detection of edges in digital images. Where possible, a quantitative statistical comparison is made for a number of filters defined with two-dimensional geometries; in some cases one-dimensional analyses are required to illustrate certain points. Noise images prefiltered by median filters defined with a variety of windowing geometries are used to support the analysis, and it is found that median prefiltering improves the performance of both thresholding and zero-crossing based edge detectors.

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KW - order statistics

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The Effect of Median Filtering on Edge Estimation and Detection

Abstract

Keywords

ASJC Scopus subject areas

Online availability

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