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Title: Image segmentation : finding the optimum threshold using discriminant analysis
Authors: Azar, Reina Al
Advisors: Greige, Hanna 
Subjects: Digital imaging
Discriminant analysis
Issue Date: 2017
Digital image processing nowadays became a must. It is used in many domains including medicine, industry, etc…. One of the important techniques in digital image processing is image segmentation where each image is divided into two classes: one for the object and the other for the background. In order to be able to segment an image, we need to find the best threshold for the image. There are many ways to find the best threshold. In this paper, I focused on using discriminant analysis which was proposed by Otsu (1979). So our problem is reduced to either maximizing the between class variance or minimizing the within class variance. The threshold that has the minimum class variance is the optimum threshold and according to this threshold, a new matrix will be generated where each pixel in the matrix of the image will be converted either to 0 or to 255. The resulted matrix will be essential to find the segmented image using MATLAB.
Includes bibliographical references (p. 20-21).

Supervised by Dr. Hanna Greige.
Rights: This object is protected by copyright, and is made available here for research and educational purposes. Permission to reuse, publish, or reproduce the object beyond the personal and educational use exceptions must be obtained from the copyright holder
Ezproxy URL: Link to full text
Type: Project
Appears in Collections:UOB Theses and Projects

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