private Task <RetrieveResult> FindFaceEyesIrisAsync()
{
return(Task <RetrieveResult> .Run(() =>
{
detector.DetectFace(grayFrame, out FaceRetrieveResult face, out EyeRetrieveResult eye);
if (!face.HasFace)
{
return null;
}
bool hasLeftPupil = false;
CIRCLE leftPupil = default;
if (eye.HasLeftEye)
{
RECT leftEye = eye.LeftEye;
int offsety = (int)(leftEye.Height * 0.2);
int offsetx = (int)(leftEye.Width * 0.1);
leftEye.Offset(offsetx, offsety);
leftEye.Height = leftEye.Height - offsety - offsety;
leftPupil = Iris.SearchInnerBoundary(grayBytes, img_width, img_height, leftEye.Left, leftEye.Top, leftEye.Right, leftEye.Bottom);
}
bool hasRightPupil = false;
CIRCLE rightPupil = default;
if (eye.HasRightEye)
{
RECT rightEye = eye.RightEye;
int offsety = (int)(rightEye.Height * 0.2);
int offsetx = (int)(rightEye.Width * 0.1);
rightEye.Offset(-offsetx, offsety);
rightEye.Height = rightEye.Height - offsety - offsety;
rightPupil = Iris.SearchInnerBoundary(grayBytes, img_width, img_height, rightEye.Left, rightEye.Top, rightEye.Right, rightEye.Bottom);
}
return new RetrieveResult()
{
Face = face,
Eye = eye,
Pupil = new PupilRetrieveResult(hasLeftPupil, leftPupil, hasRightPupil, rightPupil),
};
}));
}
private void FindFaceFeatures()
{
Marshal.Copy(grayFrame.DataPointer, grayBytes, 0, img_size);
FindFaceEyesIrisAsync().ContinueWith((tsk) =>
{
RetrieveResult retrieveResult = tsk.Result;
if (retrieveResult == null)
{
Dispatcher.BeginInvoke((Action)(() =>
{
BitmapSource grayImage = BitmapSource.Create(
img_width, img_height,
96.0, 96.0, PixelFormats.Gray8,
new BitmapPalette(new System.Windows.Media.Color[] { System.Windows.Media.Color.FromRgb(0, 0, 0), System.Windows.Media.Color.FromRgb(255, 255, 255) }),
grayBytes, img_width);
resultWindow.SetResult(grayImage, grayImage);
lock (_locker)
{
isReady = true;
if ((capture.Grab() == false))
{
App.Current.Shutdown();
}
}
}), DispatcherPriority.Render);
return;
}
FaceRetrieveResult faceRetrieveResult = retrieveResult.Face;
EyeRetrieveResult eyeRetrieveResult = retrieveResult.Eye;
PupilRetrieveResult pupilRetrieveResult = retrieveResult.Pupil;
Emgu.CV.Structure.MCvScalar whiteColor = new Emgu.CV.Structure.MCvScalar(100, 255, 255);
Emgu.CV.Structure.MCvScalar redColor = new Emgu.CV.Structure.MCvScalar(100, 255, 100);
if (faceRetrieveResult.HasFace)
{
RECT face = faceRetrieveResult.Face;
CvInvoke.Rectangle(cameraFrame, face, whiteColor, 3);
if (eyeRetrieveResult.HasLeftEye)
{
RECT leftEye = eyeRetrieveResult.LeftEye;
CIRCLE leftPupil = pupilRetrieveResult.LeftPupil;
CvInvoke.Rectangle(cameraFrame, leftEye, whiteColor, 3);
CvInvoke.Circle(cameraFrame, leftPupil.Center, leftPupil.Radius, redColor, 2);
}
if (eyeRetrieveResult.HasRightEye)
{
RECT rightEye = eyeRetrieveResult.RightEye;
CIRCLE rightPupil = pupilRetrieveResult.RightPupil;
CvInvoke.Rectangle(cameraFrame, rightEye, whiteColor, 3);
CvInvoke.Circle(cameraFrame, rightPupil.Center, rightPupil.Radius, redColor, 2);
}
}
Dispatcher.BeginInvoke((Action)(() =>
{
OnFeatureRead(eyeRetrieveResult, pupilRetrieveResult);
BitmapSource grayImage = BitmapSource.Create(
img_width, img_height,
96.0, 96.0, PixelFormats.Gray8,
new BitmapPalette(new System.Windows.Media.Color[] { System.Windows.Media.Color.FromRgb(0, 0, 0), System.Windows.Media.Color.FromRgb(255, 255, 255) }),
grayBytes, img_width);
BitmapSource resultImage = Bitmap2BitmapImage(cameraFrame.Bitmap);
resultWindow.SetResult(grayImage, resultImage);
lock (_locker)
{
isReady = true;
if ((capture.Grab() == false))
{
App.Current.Shutdown();
}
}
}), DispatcherPriority.Render);
});
}