private void frameProcessing()
{
_capture = new Capture(_file);
totalFrameCount = _capture.GetCaptureProperty(Emgu.CV.CvEnum.CapProp.FrameCount);
progressBar1.Maximum = (int)totalFrameCount;
timer.Start();
_capture.ImageGrabbed += ProcessFrame;
if (timer.ElapsedMilliseconds == 1000) _capture.Stop();
}
private void 关闭相机ToolStripMenuItem_Click(object sender, EventArgs e)
{
if (this.camp != null)
{
camp.Close();
}
task.Abort();
capture.ImageGrabbed -= Capture_ImageGrabbed;
capture.Stop();
capture.Dispose();
}
public bool GetVideoData(System.Windows.Forms.PictureBox picturebox1, System.Windows.Forms.PictureBox picturebox2)
{
CameraHasData = false;
frm.SetText(frm.Controls["textBoxImageY"], "0");
frm.SetText(frm.Controls["textBoxDeg"], "0");
frm.SetText(frm.Controls["textBoxImageX"], "0");
capture.Start();
int cappturecounter = 1;
while (!CameraHasData || cappturecounter <= 20)
{
GetCameraXY(picturebox1, picturebox2);
cappturecounter++;
}
capture.Stop();
return(true);
}
private void getFrame(object sender, EventArgs arg)
{
try
{
m = capture.QueryFrame();
displayImage(m.Bitmap);
if (!detectWorker.IsBusy)
{
if (!detectWorker.CancellationPending)
{
detectWorker.RunWorkerAsync();
}
}
}
catch (NullReferenceException e)
{
Application.Idle -= getFrame;
capture.Stop();
MessageBox.Show(e.Message);
}
}
public async void StartCapture()
{
// Can only access the first camera without CL Eye SDK
if (_camera.TrackerId == 0 && !_camera.Design)
{
_capture = new Capture(_camera.TrackerId);
_ctsCameraCalibration = new CancellationTokenSource();
CancellationToken token = _ctsCameraCalibration.Token;
_capture.Start();
try
{
// needed to avoid bitmapsource access violation?
_captureTask = Task.Run(() =>
{
while (!token.IsCancellationRequested)
{
ImageGrabbed();
}
}, token);
await _captureTask;
}
catch (OperationCanceledException)
{
}
catch (Exception ex)
{
Console.WriteLine(ex.StackTrace);
}
finally
{
_capture.Stop();
_capture.Dispose();
}
}
}