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How can i draw a circle at a particular centroid?

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MoonPie1
MoonPie1 2016-5-22
评论： MoonPie1 2016-5-23
How can i draw a circle at a particular centroid? I have an image displayed by the function imshow.. I need to draw circle of a particular diameter on the image..

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Image Analyst
Image Analyst 2016-5-22
编辑：Image Analyst 2016-5-22
I just answered this for someone.
hold on;
plot(xCenter, yCenter, 'bo', 'MarkerSize', 30);
Adjust MarkerSize to get different diameter.
If you have row,column instead of x,y, do this:
hold on;
plot(centerColumn, centerRow, 'bo', 'MarkerSize', 30);

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