public void DetectFaces()
{
try
{
Update_DetectorImageScale_DividedBy_CameraViewImageScale();
var scale = DetectorImageScale_DividedBy_CameraViewImageScale;
var detectorImageWidth = (int)(CameraViewImageWidth * scale);
var detectorImageHeight = (int)(CameraViewImageHeight * scale);
if (false)
{
Debug.WriteLine("DetectorImageWidth: " + detectorImageWidth);
Debug.WriteLine("DetectorImageHeight: " + detectorImageHeight);
}
if (ApplicationCommonSettings.IsDeveloperRelease)
{
DetectionElapsedStopwatch.Reset(); DetectionElapsedStopwatch.Start();
}
DlibArray2dUcharImage.ResizeImage(detectorImageWidth, detectorImageHeight);
DetectedFaceRectsInCameraViewImage = DlibHogSvm.DetectFaces(DlibArray2dUcharImage, DlibHogSvmThreshold)
.Select(e => new System.Drawing.Rectangle((int)(e.X / scale), (int)(e.Y / scale), (int)(e.Width / scale), (int)(e.Height / scale)))
.ToList();
if (ApplicationCommonSettings.IsDeveloperRelease)
{
DetectionElapsedMilliseconds = (int)DetectionElapsedStopwatch.ElapsedMilliseconds;
}
}
catch (Exception ex)
{
if (ApplicationCommonSettings.IsDebugging)
{
Debugger.Break();
}
Console.WriteLine(ex.Message);
}
}
public void DetectFaces(OpenCvSharp.Mat inputColorImage, double threshold)
{
if (IsEnabled == false)
{
return;
}
Trace.Assert(inputColorImage != null);
Elapsed.Restart();
Image.SetBitmap(inputColorImage.ToBitmap());
DetectedFaceRects = DlibHogSvm.DetectFaces(Image, threshold)
.Select(e => new OpenCvSharp.Rect(e.X, e.Y, e.Width, e.Height));
Elapsed.Stop();
var fps = (1000.0 / (double)Elapsed.ElapsedMilliseconds);
FpsFiltered = 0.7 * FpsFiltered + 0.3 * fps;
}
protected virtual void Dispose(bool disposing)
{
if (disposed)
{
return;
}
if (disposing)
{
// dispose managed objects, and dispose objects that implement IDisposable
if (Device != null)
{
// When InitializeOnceAtStartup is not called.
Device.CameraViewImageSourceBitmapCapture.CameraViewImageSourceBitmapChanged -= Device_CameraViewImageSourceBitmapCapture_CameraViewImageSourceBitmapChanged;
}
DetectFaceIntervalMinimumStopwatch.Reset();
DetectFaceIntervalMinimumStopwatch.Start();
while (IsDetecting)
{
System.Threading.Thread.Sleep(50);
if (DetectFaceIntervalMinimumStopwatch.ElapsedMilliseconds > 2000)
{
if (ApplicationCommonSettings.IsDebugging)
{
Debugger.Break();
}
Console.WriteLine("FaceDetection BackgroundWorkder did not completed.");
break;
}
}
if (DlibArray2dUcharImage != null)
{
DlibArray2dUcharImage.Dispose(); DlibArray2dUcharImage = null;
}
if (DlibHogSvm != null)
{
DlibHogSvm.Dispose(); DlibHogSvm = null;
}
}
// release any unmanaged objects and set the object references to null
disposed = true;
}
protected virtual void Dispose(bool disposing)
{
if (disposed)
{
return;
}
if (disposing)
{
// dispose managed objects, and dispose objects that implement IDisposable
if (DlibHogSvm != null)
{
DlibHogSvm.Dispose(); DlibHogSvm = null;
}
if (Image != null)
{
Image.Dispose(); Image = null;
}
}
// release any unmanaged objects and set the object references to null
disposed = true;
}
