|Table of Contents|

An Improved Edge Detection Algorithm(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2008年第03期
Page:
323-
Research Field:
应用地球物理
Publishing date:

Info

Title:
An Improved Edge Detection Algorithm
Author(s):
CUI Jian-jun1; ZHAN Shi-fu2; ZHENG Xiong-w ei2; GU Jun-kai1
1. School o f Geological Engineering and Surveying, Changan University, Xian 710054, Shaanxi, China; 2. China Aero Geophysical Survey and Remote Sensing Center for Land and Resources, Beijing 100083, China
Keywords:
edge detection;  differential operator;  algorithm;  improving
PACS:
P23
DOI:
-
Abstract:
The defects of conventional gradient edge detection are analyzed and evaluated. In order to avoid the defects of gradient operators, this paper proposes a new edge detection method. The new algorithm alters the traditional method of considering one pixel separately by considering the neighborhood of one image pixel as a whole part. Some special parameters of the area can be presented through calculating the pixel and its neighborhood. The edge detection is based on those parameters. The new algorithm thoroughly considers the neighborhood of one image pixel and improves the stability of the gradient results by introducing the value of the neighborhood to the gradient. The edge detection results of test image show that the new method can detect thinner edges and is more reliable under salt and pepper noisy condition.

References:

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Memo

Memo:
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Last Update: 2008-09-20