As far as I know about the homography, It need to detect 4 corners in order to draw a rectangular shaped homography around the images.
In my case am using ORB to detect the images and I have Images which are circular and triangular in shape. I have to draw a shape which is in a circular and triangular shape around the circle and triangle Images. Is there any functions in which I can achieve my solution or any ideas on how to get circular and traingle shapes.
Based on the Image a line has to be drawn around it according to it's shape.
Thanks
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