Title :
Comments on Picture thresholding using an iterative selection method
Author :
Magid, A. ; Rotman, S.R. ; Weiss, A.M.
Author_Institution :
Dept. of Electr. & Comput. Eng., Ben Gurion Univ., Beer-Sheva, Israel
Abstract :
T.W. Ridler and E.S. Calvard (ibid., vol.SMC-8, p.630-2, Aug. 1978) presented a method of picture thresholding that was further mathematically developed by H.J. Trussel (ibid., vol.SMC-9, p.311, 1979). The principle of this method is to evaluate the unique threshold T for any image with a bimodal histogram. The present paper reinterprets the procedure as an algorithm designed to optimize the conversion of a multiple gray-level picture to a bimodel picture while maintaining as closely as possible the average luminance of the picture.<>
Keywords :
iterative methods; picture processing; bimodal histogram; iterative selection method; luminance; multiple gray-level picture; picture processing; picture thresholding; Automatic control; Control systems; Cost function; Entropy; Iterative methods; Manufacturing systems; Production facilities; Signal design; Uncertainty; Working environment noise;
Journal_Title :
Systems, Man and Cybernetics, IEEE Transactions on
