/// <summary>
/// Return the blob given the specific index
/// </summary>
/// <param name="i">The index of the blob</param>
/// <returns>The blob in the specific index</returns>
public override MCvBlob this[int i]
{
get
{
return (MCvBlob)Marshal.PtrToStructure(BlobTrackerAutoInvoke.CvBlobTrackerAutoGetBlob(_ptr, i), typeof(MCvBlob));
}
}
/// <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);
}
/// <summary>
/// Process a frame
/// </summary>
/// <param name="currentFrame">The frame to be processed</param>
/// <param name="foregroundMask">the foreground mask to be used</param>
public void Process(Image<TColor, Byte> currentFrame, Image<Gray, Byte> foregroundMask)
{
BlobTrackerAutoInvoke.CvBlobTrackerAutoProcess(_ptr, currentFrame.Ptr, foregroundMask == null ? IntPtr.Zero : foregroundMask.Ptr);
}
/// <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 = BlobTrackerAutoInvoke.CvCreateBlobTrackerAuto1(ref p);
}
/// <summary>
/// Release the blob tracker auto
/// </summary>
protected override void DisposeObject()
{
BlobTrackerAutoInvoke.CvBlobTrackerAutoRelease(ref _ptr);
}
/// <summary>
/// Get the blob with the specific id
/// </summary>
/// <param name="blobID">The id of the blob</param>
/// <returns>The blob of the specific id, if it doesn't exist, MCvBlob.Empty is returned</returns>
public override MCvBlob GetBlobByID(int blobID)
{
IntPtr blobPtr = BlobTrackerAutoInvoke.CvBlobTrackerAutoGetBlobByID(_ptr, blobID);
if (blobPtr == IntPtr.Zero) return MCvBlob.Empty;
return (MCvBlob)Marshal.PtrToStructure(blobPtr, typeof(MCvBlob));
}