An Edge Detection A lgorithm based on Fuzzy Logic

  ijett-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
© 2013 by IJETT Journal
Volume-4 Issue-3                       
Year of Publication : 2013
Authors :  Shikha Bharti , Sanjeev Kumar


Shikha Bharti , Sanjeev Kumar. "An Edge Detection A lgorithm based on Fuzzy Logic ". International Journal of Engineering Trends and Technology (IJETT). V4(3):289-293 Mar 2013. ISSN:2231-5381. published by seventh sense research group


Edges characterize boundaries and are therefore considered for prime importance in image processing. Edge detection filters out useless data, noise and frequencies while preserving the important structural properties in an image . The proposed method adopts fuzzy reasoning in order to extract edges. Here the scanning of an image using the windowing technique takes place which is subjected to a set of fuzzy conditions . A 2*2 scanning mask is used and the Fuzzy inference system designed has four inputs, which corresponds to four pixels of the scanning matrix, one output that tells whether the pixel under consideration is “edge” or “non - edge” pixel. In this paper, we evaluate the performance of a fuzzy inference system in edge detection. The results for images with high contrast variation are compared to those obtained with the linear Sobel operator.


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Image processing, Fuzzy logic, Fuzzy image processing, MATLAB, Edge detection, fuzzy rules, fuzzification, defuzzification