void TrackThreadRun(AutoResetEvent stop, IExperiment experiment)
{
//Set up image for small region around fish
Image8 fishImage = new Image8(60, 60);
CameraLinkCamera camera = null;
try
{
camera = new CameraLinkCamera(Properties.Settings.Default.CameraInterface);
using (Image8 image = new Image8(camera.Width, camera.Height))
{
if (experiment != null && experiment.SuggestedBufferSeconds != null)
{
int buffsize = (int)(experiment.SuggestedBufferSeconds.Value * FrameRate);
camera.Start(buffsize > 2 ? buffsize : 2);
}
else
{
camera.Start(100);//start camera with 100 frames in buffer by default
}
while (!stop.WaitOne(0))
{
try
{
FrameIndex = camera.Extract(image, FrameIndex) + 1;
IppiPoint?fishCentroid = null;
if (experiment != null)
{
if (!experiment.ProcessNext((int)FrameIndex, image, out fishCentroid))
{
break;
}
}
//at 10Hz display camera and fish image
if (FrameIndex % (FrameRate / 10) == 0)
{
//blank the fish image
ip.ippiSet_8u_C1R(0, fishImage.Image, fishImage.Stride, fishImage.Size);
if (experiment is PreviewTrack && DisplayImage != ImageType.Camera)
{
Image8 toHandle = null;
PreviewTrack pt = experiment as PreviewTrack;
switch (DisplayImage)
{
case ImageType.Background:
toHandle = pt.Background;
MainImage.CMax = 255;
FishImage.CMax = 255;
break;
case ImageType.Foreground:
toHandle = pt.Foreground;
MainImage.CMax = 255;
FishImage.CMax = 255;
break;
default:
toHandle = pt.Thresholded;
MainImage.CMax = 1;
FishImage.CMax = 1;
break;
}
if (toHandle != null)
{
if (fishCentroid != null)
{
CopyRegionImage(fishCentroid.Value, fishImage, toHandle);
}
MainImage.Write(toHandle, stop);
FishImage.Write(fishImage, stop);
}
}
else
{
//In preview we also apply our mask
if (experiment is PreviewTrack)
{
if (_maskImage == null || _maskImage.Width != image.Width || _maskImage.Height != image.Height)
{
if (_maskImage != null)
{
_maskImage.Dispose();
}
_maskImage = new Image8(image.Width, image.Height);
DishCenter = new IppiPoint(_maskImage.Width / 2, _maskImage.Height / 2);
CreateCircularMask(_maskImage, DishCenter, MaskRadius);
}
DrawMask(_maskImage, image);
}
if (fishCentroid != null)
{
CopyRegionImage(fishCentroid.Value, fishImage, image);
}
MainImage.CMax = 255;
FishImage.CMax = 255;
MainImage.Write(image, stop);
FishImage.Write(fishImage, stop);
}
}
}
catch (OperationCanceledException)
{
break;
}
}
}
}
catch (NIImaqException camException)
{
System.Diagnostics.Debug.WriteLine(camException);
}
finally
{
if (experiment != null && experiment is IDisposable)
{
(experiment as IDisposable).Dispose();
}
if (camera != null)
{
camera.Dispose();
}
if (fishImage != null)
{
fishImage.Dispose();
}
if (IsRunning)
{
DispatcherHelper.CheckBeginInvokeOnUI(() => { Stop(); });
}
}
}
