//
// 摘要:
// Calculates ellipse that fits best (in least-squares sense) to a set of 2D
// points. The meaning of the returned structure fields is similar to those
// in cvEllipse except that size stores the full lengths of the ellipse axises,
// not half-lengths
//
// 参数:
// points:
// Sequence or array of points
//
// 返回结果:
// The ellipse that fits best (in least-squares sense) to a set of 2D points
public extern static MCvBox2D cvFitEllipse2(IntPtr points);