public override void OnStart()
{
PackageHost.WriteInfo("Package starting - IsRunning: {0} - IsConnected: {1}", PackageHost.IsRunning, PackageHost.IsConnected);
string startupPath = System.Reflection.Assembly.GetExecutingAssembly().CodeBase;
IDBAccess dataStore = new DBAccess("facesDB.db");
recoEngine = new RecognizerEngine(
Path.Combine(Environment.CurrentDirectory, "data/facesDB.db"),
Path.Combine(Environment.CurrentDirectory, "data/RecognizerEngineData.YAML")); //"/data/facesDB.db", startupPath + "/data/RecognizerEngineData.YAML");
cap = new Capture();
//cap.QueryFrame().Save(Path.Combine(Environment.CurrentDirectory, "test.bmp"));
Task.Factory.StartNew(() =>
{
while (PackageHost.IsRunning)
{
Rectangle[] faces;
//string bla = System.Reflection.Assembly.GetExecutingAssembly(). CodeBase + "/haarcascade_frontalface_default.xml";
cascadeClassifier = new CascadeClassifier( Path.Combine(Environment.CurrentDirectory, "haarcascade_frontalface_default.xml"));
using (var imageFrame = cap.QueryFrame().ToImage<Bgr, Byte>())
{
if (imageFrame != null)
{
var grayframe = imageFrame.Convert<Gray, byte>();
faces = cascadeClassifier.DetectMultiScale(grayframe, 1.2, 10, Size.Empty); //the actual face detection happens here
PackageHost.PushStateObject<Rectangle[]>("faces", faces);
foreach (var face in faces)
{
int nameID = recoEngine.RecognizeUser(imageFrame.GetSubRect(face).Convert<Gray, byte>());
if (nameID == 0)
{
PackageHost.WriteWarn("unknown face");
PackageHost.PushStateObject<String>("Face", "Unknown");
}
else
{
string name = dataStore.GetUsername(nameID);
PackageHost.WriteInfo("face recognized : {0}", name);
PackageHost.PushStateObject<String>("Face", name);
}
}
}
}
Thread.Sleep(5000);//PackageHost.GetSettingValue<int>("RefreshRate")
}
});
}
public RecognizerEngine(String databasePath, String recognizerFilePath)
{
this.recognizerFilePath = recognizerFilePath;
dbAccess = new DBAccess(databasePath);
faceRecognizer = new EigenFaceRecognizer(80, double.PositiveInfinity);
}
