houghdemo.m

machine vision 工具箱

%
%	Copyright (c) Peter Corke, 1999  Machine Vision Toolbox for Matlab

im = mksq(64, 1);
idisp(im)
disp('create a square')
pause

im = ilap(im);
idisp(im);
disp('take Laplacian to get 4 line segments')
pause

figure
ihough(im)
disp('now show the Hough accumulator in which 4 peaks can be seen')