public Human GetHumanFromId(int id)
{
return
(ServicesWorker.GetInstance <DatabaseService>().Query <Human>(new Dictionary <string, object> {
{ "Id", id }
}));
}
public void LoadFromDb()
{
People.Clear();
bool has_deleting_objs = false;
foreach (var human in ServicesWorker.GetInstance <DatabaseService>().QueryByClassName <Human>())
{
if (Directory.Exists("Images\\" + human.Name))
{
var fileNames = Directory.GetFiles("Images\\" + human.Name, "*.jpg");
human.ImagesEmgu =
new List <Image <Gray, byte> >(fileNames.Select(fileName => new Image <Gray, byte>(fileName)).ToList());
People.Add(human);
}
else
{
has_deleting_objs = true;
}
}
if (has_deleting_objs)
{
ServicesWorker.GetInstance <DatabaseService>().Clear();
foreach (var human in People)
{
ServicesWorker.GetInstance <DatabaseService>().Insert <Human>(human.Id, human);
}
}
}
public void AddHuman(string label, List <Image <Gray, byte> > images)
{
var id = People.Count;
var human = new Human(id, label, images);
People.Add(human);
ServicesWorker.GetInstance <DatabaseService>().Insert <Human>(id, human);
}
public void Load()
{
ServicesWorker.GetInstance <HumanService>().LoadFromDb();
if (File.Exists("facerecognizer"))
{
_faceRecognizer.Load("facerecognizer");
_faceRecognizerTrained = true;
}
if (File.Exists("genderfacerecognizer"))
{
_genderFaceRecognizer.Load("genderfacerecognizer");
}
}
public void TrainFaceRecognizer()
{
var allImages = new List <Image <Gray, byte> >();
var idList = new List <int>();
foreach (var human in ServicesWorker.GetInstance <HumanService>().People)
{
allImages.AddRange(human.ImagesEmgu);
idList.AddRange(human.ImagesEmgu.Select(hm => human.Id));
}
if (idList.Count == 0 || allImages.Count == 0)
{
throw new NoHumanException("Нет данных о людях для обучения!");
}
_faceRecognizer.Train(allImages.ToArray(), idList.ToArray());
_faceRecognizerTrained = true;
_faceRecognizer.Save("facerecognizer");
}
private bool RecognizeFamiliarPerson(Image <Gray, byte> detectedFace)
{
var result = _faceRecognizer.Predict(detectedFace);
if (result.Label != -1)
{
var human = ServicesWorker.GetInstance <HumanService>().GetHumanFromId(result.Label);
if (human != null)
{
Recognized?.Invoke(human.Name, result.Distance);
}
else
{
Recognized?.Invoke(result.Label.ToString(), result.Distance);
}
return(true);
}
return(false);
}
public List <Image <Gray, byte> > AddImagesToHuman(string name)
{
var images = new List <Image <Gray, byte> >();
var count = 0;
var capture = new Capture();
while (count < FaceCount)
{
var image = capture.QueryFrame().ToImage <Gray, byte>();
var detectedFace = DetectFace(image);
if (detectedFace != null)
{
images.Add(detectedFace);
count++;
OnCount(count, FaceCount);
Thread.Sleep(500);
}
}
ServicesWorker.GetInstance <HumanService>().AddHuman(name, images);
capture.Dispose();
return(images);
}
