CONTRAST BASED EDGE-DETECTION

被引：39

作者：

JOHNSON, RP

机构：

[1] Australian Defence Science and Technology Organisation, Weapons Systems Research Laboratory, Weapons Division, Salisbury, SA

来源：

PATTERN RECOGNITION | 1990年 / 23卷 / 3-4期

关键词：

Contrast; Edge detection; Image processing; Infrared; Sobel; T.V;

D O I：

10.1016/0031-3203(90)90018-G

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

The detection of edges in scenes containing poorly lit regions has been studied from the viewpoint of the physical processes underlying the formation of an image. It is shown that consistent edge detection can be achieved in unevenly illuminated visible-band images if edge detection algorithms are formulated to respond to contrast rather than absolute brightness values. The process of contrast modification is illustrated using Sobel and 5 × 5 gradient operators as examples and the applicability of the technique to i.r. images is examined. © 1990.

引用

页码：311 / 318

页数：8

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