How measure distance from center of the image to the object

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

Answer 1

[KSSV]

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) ; 

[Malik Malik]

Thank you KSSV!

After your suggestion realized that i am already measuring the object length, and i could use the end point of the object and subtract it from the center of the image to get the distance.

Best Regards

Malik