MATLAB: How measure distance from center of the image to the object

digital image processingimage analysisimage processingimage segmentationMATLABmatlab function

Hi,
I have an image in which i want to measure the distance in pixels from the center of the image to the object as shown in the attached image. any suggestions how to do that? The object will move and get closer to the center of the image so my intenstion is to keep track of that distance. i think if i would be able to measuer the distance from this image i could extend that to rest.
Looking forward to your kind suggestions
Regards
Malik

Best Answer

YOu can measure the distance from center of the object to center of the image as below: 
I = imread('object_with problem.png'); 
% Center of image 
[nx,ny,nz] = size(I) ; 
[X,Y] = meshgrid(1:ny,1:nx) ; 
O = [mean(X(:)) mean(Y(:))] ; 
%% 
I1 = rgb2gray(I) ; 
[y,x] = find(I1) ; 
A = [mean(x) mean(y)] ; 
%% distance 
d = sqrt((O(1)-A(1))^2+(O(2)-A(2))^2) ;
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