구멍 채우기 - fitEllipse

fitEllipse

Fits an ellipse around a set of 2D points.

C++: RotatedRect fitEllipse(InputArray points)

Python: cv2.fitEllipse(points) → retval

C: CvBox2D cvFitEllipse2(const CvArr* points)

Python: cv.FitEllipse2(points) → Box2D

Parameters:	points – Input 2D point set, stored in: std::vector<> or Mat (C++ interface) CvSeq* or CvMat* (C interface) Nx2 numpy array (Python interface)

The function calculates the ellipse that fits (in a least-squares sense) a set of 2D points best of all. It returns the rotated rectangle in which the ellipse is inscribed. The algorithm [Fitzgibbon95] is used. Developer should keep in mind that it is possible that the returned ellipse/rotatedRect data contains negative indices, due to the data points being close to the border of the containing Mat element.

Note

• An example using the fitEllipse technique can be found at opencv_source_code/samples/cpp/fitellipse.cpp