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http://dx.doi.org/10.6109/jkiice.2014.18.1.210

A Study on Edge Detection Algorithm using Modified Mask in Salt and Pepper Noise Images  

Lee, Chang-Young (Dept. of Control and Instrumentation Eng., Pukyong National University)
Kim, Nam-Ho (Dept. of Control and Instrumentation Eng., Pukyong National University)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.18, no.1, 2014 , pp. 210-216 More about this Journal
Abstract
The edge in the image is a part which the brightness changes rapidly between the object and the object or objects and background, and includes information of the features such as size, position, orientation, and texture of the object. The edge detection is the technique that acquires these information of the images, and now the researches to detect edges are making steady progress. Typical conventional edge detection methods are Sobel, Prewitt, Roberts using the first derivative operator and Laplacian method using the second derivative operator and so on. These methods is more or less insufficient that the characteristics of the edge detection in the image added salt and pepper noise. therefore, in this paper, an edge detection algorithm using modified mask that applies different size mask according to noise density of local mask is proposed.
Keywords
Edge detection; Salt and Pepper noise; Algorithm; Modified mask;
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