DocumentCode
1022606
Title
Gradient-based edge detection using nonlinear edge enhancing prefilters
Author
Hardie, Russell C. ; Boncelet, Charles G.
Author_Institution
Dept. of Electr. Eng., Dayton Univ., OH, USA
Volume
4
Issue
11
fYear
1995
fDate
11/1/1995 12:00:00 AM
Firstpage
1572
Lastpage
1577
Abstract
This correspondence examines the use of nonlinear edge enhancers as prefilters for edge detectors. The filters are able to convert smooth edges to step edges and suppress noise simultaneously. Thus, false alarms due to noise are minimized and edge gradient estimates tend to be large and localized. This leads to significantly improved edge maps
Keywords
edge detection; filtering theory; image enhancement; interference suppression; nonlinear filters; CS filter; LUM filter; WMMR filter; comparison and selection filter; gradient-based edge detection; image processing; lower-upper-middle filter; noise suppression; nonlinear edge enhancing prefilters; smooth edges; step edges; weighted majority of samples with minimum range filter; Data mining; Detectors; Feature extraction; Image converters; Image edge detection; Image processing; Noise level; Nonlinear filters; Smoothing methods;
fLanguage
English
Journal_Title
Image Processing, IEEE Transactions on
Publisher
ieee
ISSN
1057-7149
Type
jour
DOI
10.1109/83.469938
Filename
469938
Link To Document