Author/Authors :
Olyaee، M. H. نويسنده Department of Electrical Engineering, Gonabad Branch, Islamic Azad University, Gonabad, Iran , , Abasi، H. نويسنده Department of Engineering, Damghan Branch, Islamic Azad University, Damghan, Iran , , Yaghoobi، M. H. نويسنده Department of Artificial intelligence, Mashhad Branch, Islamic Azad University, Mashhad, Iran ,
Abstract :
One of the most important topics in image processing is edge detection. Many methods have been proposed for this end but most of them have weak performance in noisy images because noise pixels are determined as edge. In this paper, two new methods are represented based on Hierarchical Adaptive Neuro Fuzzy Systems (HANFIS). Each method consists of desired number of HANFIS operators that receive the value of some neighbouring pixels and decide central pixel is edge or not. Simple train images are used in order to set internal parameters of each HANFIS operator. The presented methods are evaluated by some test images and compared with several popular edge detectors. The experimental results show that these methods are robust against impulse noise and extract edge pixels exactly.
