public static Point GetCenter(MatOfPoint matOfPoint)
{
var points = matOfPoint.toArray();
var minX = points.OrderBy(e => e.x).First().x;
var minY = points.OrderBy(e => e.y).First().y;
return(new Point(minX + ((double)matOfPoint.width()) / 2.0, ((double)matOfPoint.height()) / 2.0));
}