public MarkerDetetection()
{
Emgu.CV.Image <Emgu.CV.Structure.Bgr, byte> m = new Image <Bgr, byte>("marker2.bmp");
Emgu.CV.Image <Gray, byte> gray = m.Convert <Gray, byte>();
gray = gray.Resize(30, 30, INTER.CV_INTER_LINEAR);
gray._ThresholdBinary(new Gray(50), new Gray(255.0));
_marker = gray;
_marker_size = _marker.Width;
_dest = new PointF[] {
new PointF(0, 0),
new PointF(0, _marker_size),
new PointF(_marker_size, _marker_size),
new PointF(_marker_size, 0)
};
_roi = new Image <Gray, byte>(_marker_size, _marker_size);
_tmp = new Image <Gray, byte>(_marker_size, _marker_size);
}