There is a set of points. I have used fitEllipse to approximate it by ellipse. But i don't know how to get the new position(x,y) of ellipse points. I have checked the document, but cannot find the solution.Can somebody help?
The RotatedRect contains all the information you need. The long side is the semi-major, the short side is the semi-minor, the center, and the rotation.
You can use standard geometry to find the points, or, if you want image pixels, take a blank image and use cv::ellipse to draw with white and make a mask.
To complete, if you want to have the coordinates of points sampled on the fitted ellipse, you can look at the equation for the parametric form of the ellipse.
Asked: 2016-01-18 20:53:56 -0600
Seen: 2,700 times
Last updated: Jan 18 '16
