public void SaveNewDetectedFace(string name, Image <Gray, byte> detectedFace)
{
using (var context = new FaceRecognitionContext())
{
byte[] pixelData;
using (var ms = new MemoryStream())
{
detectedFace.Bitmap.Save(ms, ImageFormat.Bmp);
pixelData = ms.ToArray();
}
var recognizedFace = new RecognizedFace
{
Height = detectedFace.Height,
Width = detectedFace.Width,
PixelData = pixelData
};
var user = new User
{
Face = recognizedFace,
NickName = name
};
context.Users.Add(user);
context.SaveChanges();
}
}
private void SimulateFacialRecognitionData()
{
RecognizedFace simulatedFace = new RecognizedFace();
simulatedFace.position2D = new Vector2(0.5f, 0.5f);
simulatedFace.position3D = new Vector3(0, 0, 1.0f);
simulatedFace.size = new Vector2(100, 100);
recognizedFaces.Add(simulatedFace);
}
private Stream CropFaceImage(RecognizedFace face, Image originalImage)
{
var height = face.Position.Y2 - face.Position.Y1;
var width = face.Position.X2 - face.Position.X1;
var stream = _memoryStreamManager.GetStream("face_crop_stream");
originalImage
.Clone(ctx => ctx.Crop(new Rectangle(face.Position.X1, face.Position.Y1, width, height)))
.SaveAsJpeg(stream);
return(stream);
}
void _threadProcess()
{
if (!_inited)
{
_inited = true;
if (_config.EnableRecognizer)
{
_recognizer = new UnityOpenCVPersonRecognizerAPI(_config.trainingPath);
}
_detector = new UnityOpenCVFaceDetectorAPI(_config.cascadePath, _config.scaler, _config.minNeighbors, _config.minSize, _config.maxSize);
}
while (!_isDone)
{
_signalEvent.WaitOne();
_signalEvent.Reset();
if (_newImage)
{
_detecting = true;
try{
_detector.BindImage(_img);
_faces = _detector.DetectFaces();
TriggerFaceDetected(_detector.DetectedFaces);
Debug.Log("Face Detected : " + _faces.Count.ToString());
if (_recognizer != null)
{
_recognizedFaces.Clear();
for (int i = 0; i < _detector.DetectedFaces.Count; ++i)
{
_recognizer.BindImage(_img);
RecognizedFace f = new RecognizedFace();
f.ID = _recognizer.RecognizeFace(_detector.DetectedFaces[i], ref f.distance);
f.rect = _detector.DetectedFaces[i];
_recognizedFaces.Add(f);
//if(conf<60)
Debug.Log("Face Detected with label: " + f.ID.ToString() + " with distance:" + f.distance.ToString());
}
TriggerFaceRecognized(_recognizedFaces);
}
}catch (Exception) {
}
_detecting = false;
_newImage = false;
}
}
}
