Ridler and Calvard's, Kittler and Illingworth's and Otsu's methods for image thresholding
There are close relationships between three popular approaches to image thresholding, namely Ridler and Calvard's iterative-selection (IS) method, Kittler and Illingworth's minimum-error-thresholding (MET) method and Otsu's method. The relationships can be briefly described as: the IS method is an iterative version of Otsu's method; Otsu's method can be regarded as a special case of the MET method. The purpose of this correspondence is to provide a comprehensive clarification, some practical implications and further discussions of these relationships. (C) 2012 Elsevier B.V. All rights reserved.
otsu's method image thresholding iterative selection discriminant analysis minimum error thresholding mixture of gaussian distributions