How can I automatically find the maximum distance between two objects?

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khalid jackson
khalid jackson 2018-6-18
编辑： Matt J 2018-6-18
I want to find the distance from the dot on the left to the furthest point on the object to the right. How could I do this?
Thank you very much

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Matt J
Matt J 2018-6-18
编辑：Matt J 2018-6-18
justdot= bwareafilt(yourImage,1,'smallest'); %image of dot only
S=regionprops(justdot,'Centroid'); %find center of dot
ctr=flip( round(S.Centroid) );
ic=ctr(1);
jc=ctr(2);
[Iw,Jw]=find( yourImage & ~justdot ); %coordinates of white pixels excluding dot
max_distance=sqrt( max( (ic-Iw).^2+(jc-Jw).^2) ) ); %the result

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