Title :
On threshold selection using clustering criteria
Author :
Kittler, Josef ; Illingworth, John
Author_Institution :
Rutherford Appleton Lab., Chilton, Didcot, UK
Abstract :
The threshold selection method of N. Otsu (ibid., vol.SMC-9, p.62-6, 1979) is shown to break down for a certain range of object-to-background pixel population ratios. Modifications to Otsu´s method are proposed to overcome some of its limitations. The findings are also relevant to the closely related methods of T. Ridler (1978) and H.J. Trussell (1979).
Keywords :
pattern recognition; picture processing; Otsu´s method; Ridler´s method; Trussell´s method; clustering criteria; pattern recognition; picture processing; pixel population ratios; threshold selection; Histograms; Image edge detection; Image reconstruction; Linear programming; Sociology; Visualization;
Journal_Title :
Systems, Man and Cybernetics, IEEE Transactions on
DOI :
10.1109/TSMC.1985.6313443
