/// <summary>
/// Create a auto blob tracker using the specific parameters
/// </summary>
/// <param name="param">The parameters for this blob tracker auto</param>
public BlobTrackerAuto(BlobTrackerAutoParam <TColor> param)
{
_param = param;
MCvBlobTrackerAutoParam1 p = _param.MCvBlobTrackerAutoParam1;
_ptr = CvInvoke.CvCreateBlobTrackerAuto1(ref p);
}
/// <summary>
/// Create a default auto blob tracker
/// </summary>
public BlobTrackerAuto()
{
BlobTrackerAutoParam<TColor> param = new BlobTrackerAutoParam<TColor>();
param.FGDetector = new FGDetector<TColor>(Emgu.CV.CvEnum.FORGROUND_DETECTOR_TYPE.FGD);
_param = param;
MCvBlobTrackerAutoParam1 p = _param.MCvBlobTrackerAutoParam1;
_ptr = BlobTrackerAutoInvoke.CvCreateBlobTrackerAuto1(ref p);
}
public void TestBlobColor()
{
int width = 300;
int height = 400;
Image<Bgr, Byte> bg = new Image<Bgr, byte>(width, height);
bg.SetRandNormal(new MCvScalar(), new MCvScalar(100, 100, 100));
Size size = new Size(width / 10, height / 10);
Point topLeft = new Point((width >> 1) - (size.Width >> 1), (height >> 1) - (size.Height >> 1));
Rectangle rect = new Rectangle(topLeft, size);
BlobTrackerAutoParam<Bgr> param = new BlobTrackerAutoParam<Bgr>();
param.BlobDetector = new BlobDetector(Emgu.CV.CvEnum.BLOB_DETECTOR_TYPE.CC);
//param.FGDetector = new FGDetector<Gray>(Emgu.CV.CvEnum.FORGROUND_DETECTOR_TYPE.FGD);
param.BlobTracker = new BlobTracker(Emgu.CV.CvEnum.BLOBTRACKER_TYPE.MSFGS);
param.FGTrainFrames = 5;
BlobTrackerAuto<Bgr> tracker = new BlobTrackerAuto<Bgr>(param);
//ImageViewer viewer = new ImageViewer();
//viewer.Show();
for (int i = 0; i < 20; i++)
{
using (Image<Bgr, Byte> img1 = bg.Copy())
{
rect.Offset(5, 0); //shift the rectangle 5 pixels horizontally
img1.Draw(rect, new Bgr(Color.Red), -1);
tracker.Process(img1);
//viewer.Image = img1;
}
}
//MCvBlob blob = tracker[0];
//int id = blob.ID;
//ImageViewer.Show(forground);
}
public void TestBlobTracking()
{
Capture capture = new Capture();
ImageViewer viewer = new ImageViewer();
BlobTrackerAutoParam<Gray> param = new BlobTrackerAutoParam<Gray>();
//param.BlobDetector = new BlobDetector(Emgu.CV.CvEnum.BLOB_DETECTOR_TYPE.CC);
param.FGDetector = new FGDetector<Gray>(Emgu.CV.CvEnum.FORGROUND_DETECTOR_TYPE.FGD);
//param.BlobTracker = new BlobTracker(Emgu.CV.CvEnum.BLOBTRACKER_TYPE.CCMSPF);
param.FGTrainFrames = 10;
BlobTrackerAuto<Gray> tracker = new BlobTrackerAuto<Gray>(param);
MCvFont font = new MCvFont(Emgu.CV.CvEnum.FONT.CV_FONT_HERSHEY_SIMPLEX, 1.0, 1.0);
Application.Idle += new EventHandler(delegate(object sender, EventArgs e)
{
tracker.Process(capture.QuerySmallFrame().PyrUp().Convert<Gray, Byte>());
Image<Gray, Byte> img = tracker.ForgroundMask;
//viewer.Image = tracker.GetForgroundMask();
foreach (MCvBlob blob in tracker)
{
img.Draw(Rectangle.Round(blob), new Gray(255.0), 2);
img.Draw(blob.ID.ToString(), ref font, Point.Round(blob.Center), new Gray(255.0));
}
viewer.Image = img;
});
viewer.ShowDialog();
}
