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A morphological edge detector for gray-level image thresholding

  • Bin Chen*
  • , Lei He
  • , Ping Liu
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A morphological edge detector for robust real time image segmentation is proposed in this paper. Different from traditional thresholding methods that determine the threshold based on image gray level distribution, our method derives the threshold from object boundary point gray values and the boundary points are detected in the image using the proposed morphological edge detector. Firstly, the morphological edge detector is applied to compute the image morphological gradients. Then from the resultant image morphological gradient histogram, the object boundary points can be selected, which have higher gradient values than those of points within the object and background. The threshold is finally determined from the object boundary point gray values. Thus noise points inside the object and background are avoided in threshold computation. Experimental results on currency image segmentation for real time printing quality inspection are rather encouraging.

Original languageEnglish
Title of host publicationImage Analysis and Recognition - Second International Conference, ICIAR 2005, Proceedings
PublisherSpringer Verlag
Pages659-666
Number of pages8
ISBN (Print)3540290699, 9783540290698
DOIs
StatePublished - 2005
Externally publishedYes
Event2nd International Conference on Image Analysis and Recognition, ICIAR 2005 - Toronto, Canada
Duration: 28 Sep 200530 Sep 2005

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume3656 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference2nd International Conference on Image Analysis and Recognition, ICIAR 2005
Country/TerritoryCanada
CityToronto
Period28/09/0530/09/05

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