th_ptile.m File Reference

T = th_ptile(I,p,n) More...

Functions
function T =	th_ptile (I, p, n)
	T = th_ptile(I,p,n)

Detailed Description

T = th_ptile(I,p,n)

Function Documentation

th_ptile()

function T = th_ptile	(		I,
			p,
			n )

T = th_ptile(I,p,n)

Find a global threshold for a grayscale image by using the p-tile method.

In

I grayscale image p fraction of foreground pixels (defaults to 0.5) n maximum graylevel (defaults to 255)

Out

T threshold

References:

W. Doyle, "Operation useful for similarity-invariant pattern recognition," Journal of the Association for Computing Machinery, vol. 9,pp. 259-267, 1962.

C. A. Glasbey, "An analysis of histogram-based thresholding algorithms," CVGIP: Graphical Models and Image Processing, vol. 55, pp. 532-537, 1993.

% Copyright (C) 2004-2013 Antti Niemistö % % This file is part of HistThresh toolbox. % % HistThresh toolbox is free software: you can redistribute it and/or modify % it under the terms of the GNU General Public License as published by % the Free Software Foundation, either version 3 of the License, or % (at your option) any later version. % % HistThresh toolbox is distributed in the hope that it will be useful, % but WITHOUT ANY WARRANTY; without even the implied warranty of % MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the % GNU General Public License for more details. % % You should have received a copy of the GNU General Public License % along with HistThresh toolbox. If not, see http://www.gnu.org/licenses/.

References A(), min, and n.

Referenced by mibHistThresController.continueBtn_Callback(), mibHistThresController.previewBtn_Callback(), and th_median().

Here is the call graph for this function:

Here is the caller graph for this function: