?? localmax.m
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%Written by Hailin Jin and Paolo Favaro
%Copyright (c) Washington University, 2001
%All rights reserved
%Last updated 10/18/2001
function [maxima] = LocalMax(image)
%
% LOCALMAX Finds local maxima of image
%
% [maxima,i,j] = LocalMax(image)
%
% outputs array maxima of zeros and ones with ones
% at maxima position (Extended to 9 points by JYB)
[m,n] = size(image);
center_cols = [1:n];
center_rows = [1:m];
left = [2:n n];
right = [1 1:n-1];
top = [2:m m];
bot = [1 1:m-1];
maxima = ( ( (image(center_rows,center_cols) > image(center_rows,left)) & ...
(image(center_rows,center_cols) > image(center_rows,right)) & ...
(image(center_rows,center_cols) > image(top,center_cols)) & ...
(image(center_rows,center_cols) > image(bot,center_cols)) & ...
(image(center_rows,center_cols) > image(top,left)) & ...
(image(center_rows,center_cols) > image(top,right)) & ...
(image(center_rows,center_cols) > image(bot,left)) & ...
(image(center_rows,center_cols) > image(bot,right))));
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