Proceedings of the 2016 International Conference on Computer Engineering and Information Systems

Edge Detection Based on Improved Sobel Operator

Authors
Chao-Chao Zhang, Jian-Dong Fang
Corresponding Author
Chao-Chao Zhang
Available Online November 2016.
DOI
https://doi.org/10.2991/ceis-16.2016.25How to use a DOI?
Keywords
sobel operator; binarization; edge detection; edge thinning
Abstract
Sobel algorithm is an important method of image edge detection. Comparing the Sobel operator with several other edge detection operators used frequently and making a further study on the classical Sobel operator, the advantages of Sobel operator are its fast detection speed, meanwhile , it has an effect on smoothing and suppressing noise. Also, Sobel operator has a good effect on edge detection. Although Sobel operator has advantages in many aspects, it exists some problems: the Sobel operator is a kind of edge detection in horizontal and vertical direction, so it neglects edge points in other directions. It can not achieve a true detection for the points on image edge. In this paper, the algorithm is based on the Sobel operator, an increase of 45 degrees and 135 degrees 2 direction template, while the main edge of the oblique, re-assigned the weight of the operator template. At the same time, in order to achieve an effect of detection, binarization method is used to make an edge thinning for detected image. According to simulation experiments, they show this method is simple and feasible, and the detective result is more concrete and abundant than traditional Sobel edge detection. Some problems are improved, such as traditional Sobel edge is rough and detection is incomplete.
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Proceedings
2016 International Conference on Computer Engineering and Information Systems
Part of series
Advances in Computer Science Research
Publication Date
November 2016
ISBN
978-94-6252-283-1
DOI
https://doi.org/10.2991/ceis-16.2016.25How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

TY  - CONF
AU  - Chao-Chao Zhang
AU  - Jian-Dong Fang
PY  - 2016/11
DA  - 2016/11
TI  - Edge Detection Based on Improved Sobel Operator
BT  - 2016 International Conference on Computer Engineering and Information Systems
PB  - Atlantis Press
UR  - https://doi.org/10.2991/ceis-16.2016.25
DO  - https://doi.org/10.2991/ceis-16.2016.25
ID  - Zhang2016/11
ER  -