Emgu.CV.MotionHistory.MotionInfo C# (CSharp) Метод

        public void MotionInfo(System.Drawing.Rectangle motionRectangle, out double angle, out double motionPixelCount)
        {
            TimeSpan ts = _lastTime.Subtract(_initTime);
             // select component ROI
             CvInvoke.cvSetImageROI(_foregroundMask, motionRectangle);
             CvInvoke.cvSetImageROI(_mhi, motionRectangle);
             CvInvoke.cvSetImageROI(_orientation, motionRectangle);
             CvInvoke.cvSetImageROI(_mask, motionRectangle);

             // calculate orientation
             angle = CvInvoke.cvCalcGlobalOrientation(_orientation.Ptr, _mask.Ptr, _mhi.Ptr, ts.TotalSeconds, _mhiDuration);
             angle = 360.0 - angle; // adjust for images with top-left origin

             // caculate number of points within silhoute ROI
             motionPixelCount = CvInvoke.cvNorm(_foregroundMask.Ptr, IntPtr.Zero, CvEnum.NORM_TYPE.CV_L1, IntPtr.Zero); // calculate number of points within silhouette ROI

             // reset the ROI
             CvInvoke.cvResetImageROI(_mhi);
             CvInvoke.cvResetImageROI(_orientation);
             CvInvoke.cvResetImageROI(_mask);
             CvInvoke.cvResetImageROI(_foregroundMask);
        }