This is not circle finding in an image, which has been well covered, but in an array.
I have an array P with several approximately-circular areas of a low value. I would like to find the centres of those areas to calibrate my device. Here is a contour 2D plot of P. The contour plot looks a bit odd because I only obtained a patch of data around each circle (the box) and it is doing a linear interpolation between those.
This is a one-time calibration so I’m happy to do some manual setting up work.
Thanks in advance!
Jack

This is how I display the contour:
figure(1)
pcolor(X,Y,P);
shading interp
hold on
colorbar
hold off

PS this is my first question so do say if there is anything I can improve for next time.This is not circle finding in an image, which has been well covered, but in an array.
I have an array P with several approximately-circular areas of a low value. I would like to find the centres of those areas to calibrate my device. Here is a contour 2D plot of P. The contour plot looks a bit odd because I only obtained a patch of data around each circle (the box) and it is doing a linear interpolation between those.
This is a one-time calibration so I’m happy to do some manual setting up work.
Thanks in advance!
Jack

This is how I display the contour:
figure(1)
pcolor(X,Y,P);
shading interp
hold on
colorbar
hold off

PS this is my first question so do say if there is anything I can improve for next time. This is not circle finding in an image, which has been well covered, but in an array.
I have an array P with several approximately-circular areas of a low value. I would like to find the centres of those areas to calibrate my device. Here is a contour 2D plot of P. The contour plot looks a bit odd because I only obtained a patch of data around each circle (the box) and it is doing a linear interpolation between those.
This is a one-time calibration so I’m happy to do some manual setting up work.
Thanks in advance!
Jack

This is how I display the contour:
figure(1)
pcolor(X,Y,P);
shading interp
hold on
colorbar
hold off

PS this is my first question so do say if there is anything I can improve for next time. circles, finding, arrays, variables, matlab MATLAB Answers — New Questions

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