void InitializeFaceDetection(int cameraindex)
{
Thread thread = new Thread(() =>
{
try
{
ReleasePreviousDetectors();
WebcamManager.SetPropertyValueManual(cameraindex, WebcamManager.CAMERA_PROPERTY.CAMERA_FOCUS, camerafocus);
WebcamManager.SetPropertyValueManual(cameraindex, WebcamManager.CAMERA_PROPERTY.CAMERA_ZOOM, camerazoom);
faceDetector = new WebCamFaceDetector();
faceDetector.ToggleVisualization();
faceDetector.RegisterForImages(WebcamManager.GetCamera(cameraindex));
faceDetector.SelectedCameraIndex = cameraindex;
faceDetector.RoiX = roiX;
faceDetector.RoiY = roiY;
faceDetector.RoiWidth = roiWidth;
faceDetector.RoiHeight = roiHeight;
faceDetector.FaceDetected += WebCamFaceDetected;
}
catch (Exception err)
{
MessageBox.Show(err.ToString());
}
});
thread.SetApartmentState(ApartmentState.STA);
thread.Start();
}
protected void ReleasePreviousDetectors()
{
if (faceDetector != null && selectedCameraIndex != -1)
{
for (int i = 0; i < faceDetector.SubscribedImagers.Count; i++)
{
faceDetector.UnregisterForImages(faceDetector.SubscribedImagers[i]);
}
faceDetector.Clear();
faceDetector = null;
}
}
