MATLAB: How to determine the coordinates of points

Question

I want to determinate the coordinates of this points

Answer 1

I = imread('bwimage.jpg');

I = rgb2gray(I);

N = bwlabel(I);

s = regionprops(N, 'centroid');

XY=[s.Centroid];

XY(1:2:end);

XY(2:2:end);

The XY contains the coordinates the last two lines will give you two arrays of X and Y coordinates