MATLAB: Find mid position value

digital image processingmid point

Plz help me
How i find the mid position in x y values.
this is my code
clear all;
[filename pathname]=uigetfile('*.jpg;*.png;*.tif;*.tiff;*.gif;*.bmp;');
inputimage=imread([pathname filename]);
I=inputimage;
% I = imread('5.png') ;
I = rgb2gray(I) ;
[y,x] = find(I) ;
figure
imshow(I)
hold on
plot(x,y,'.b')
% x
% y
% z=(y+x)/2
% plot(z,'.r')
plot(x(1),y(1),'*y')
plot(x(end),y(end),'*y')
% 
line([x(1),0],[y(1), 0])
line([x(end),0],[y(end), 0])
figure(1);line([0 1],[0 1]);

Best Answer

Let 2.png be your image.
I = imread('2.png') ;
I = rgb2gray(I) ;
[y,x] = find(I) ;
% Mid position 
mpx = mean(x) ;
mpy = mean(y) ;
imshow(I) ;
hold on
plot(mpx,mpy,'*b')
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