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how to get values of a square matrix at an degree from center & how to get end points of y

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I have a matrix i.e 400x400
I am at 200,200 now I want to take all values of matrix at an angle
I can think of this but not for any degree? how to do this?
h_180=h(200:400,200);
h_0=h(1:200,200);
h_90=h(200,200:400);
h_270=h(200,200:-1:1);
for phi=0:359
x=[200,200+199*cosd(phi)];
y=[200,200+199*sind(phi)]; % Y how to get end points? as its a square
c(:,phi)=improfile(h,x,y)
end
How to get value of y at the end?

Accepted Answer

Walter Roberson
Walter Roberson on 12 May 2021
improfile() if you have the Image Procesing Toolbox.
If not, then the code for improfile() is based upon interp2()

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