/// <summary>
/// Set the values of the rotation matrix
/// </summary>
/// <param name="center">Center of the rotation in the source image</param>
/// <param name="angle">The rotation angle in degrees. Positive values mean couter-clockwise rotation (the coordiate origin is assumed at top-left corner). </param>
/// <param name="scale">Isotropic scale factor.</param>
public void SetRotation(PointF center, double angle, double scale)
{
CvInvoke.cv2DRotationMatrix(center, angle, scale, Ptr);
}