iopen.m

来自澳大利亚Qeensland大学的计算机视觉Matlab工具箱。 This Toolbox provides a number of functions that are useful in co

%IOPEN	Morphological opening
%
%	B = IOPEN(A, SE [,N])
%
%	Return the image A after morphological opening with the structuring
%	element SE.  N (default to 1) erosions then N dilations are performed.
%
% SEE ALSO:	iclose imorph
%
%
%	Copyright (c) Peter Corke, 1999  Machine Vision Toolbox for Matlab

function b = iopen(a, se, n)
	if nargin == 2,
		n = 1;
	end

	b = a;
	for i=1:n,
		b = imorph(b, se, 'min');
	end
	for i=1:n,
		b = imorph(b, se, 'max');
	end