public void GetFacesList()
{
//haar cascade classifier
haarCascade = new HaarCascade(Config.HaarCascadePath);
faceList.Clear();
string line;
FaceData faceInstance = null;
//split face text file
StreamReader reader = new StreamReader(Config.FaceListTextFile);
while ((line = reader.ReadLine()) != null)
{
string[] lineParts = line.Split(':');
faceInstance = new FaceData();
faceInstance.FaceImage = new Image <Gray, byte>(Config.FacePhotosPath + lineParts[0] + Config.ImageFileExtension);
faceInstance.PersonName = lineParts[1];
faceList.Add(faceInstance);
}
foreach (var face in faceList)
{
imageList.Add(face.FaceImage);
lList.Add(face.PersonName);
}
reader.Close();
}
public void LoadKnownFaces()
{
_haarCascade = new CascadeClassifier("Cascades/haarcascade_frontalface_default.xml");
_knownFaces.Clear();
string line;
var reader = new StreamReader(Config.FaceListTextFile);
while ((line = reader.ReadLine()) != null)
{
var lineParts = line.Split(':');
var faceInstance = new FaceData
{
FaceImage = new Image <Gray, byte>(Config.FacePhotosPath + lineParts[0] + Config.ImageFileExtension),
PersonName = lineParts[1],
FaceId = int.Parse(Regex.Match(lineParts[0], @"\d+").Value),
};
_knownFaces.Add(faceInstance);
}
reader.Close();
}
public void GetFacesList()
{
//haar cascade classifier
if (!File.Exists(Config.HaarCascadePath))
{
string text = "Cannot find Haar cascade data file:\n\n";
text += Config.HaarCascadePath;
MessageBoxResult result = MessageBox.Show(text, "Error",
MessageBoxButton.OK, MessageBoxImage.Error);
}
haarCascade = new CascadeClassifier(Config.HaarCascadePath);
faceList.Clear();
string line;
FaceData faceInstance = null;
// Create empty directory / file for face data if it doesn't exist
if (!Directory.Exists(Config.FacePhotosPath))
{
Directory.CreateDirectory(Config.FacePhotosPath);
}
if (!File.Exists(Config.FaceListTextFile))
{
string text = "Cannot find face data file:\n\n";
text += Config.FaceListTextFile + "\n\n";
text += "If this is your first time running the app, an empty file will be created for you.";
MessageBoxResult result = MessageBox.Show(text, "Warning",
MessageBoxButton.OK, MessageBoxImage.Warning);
switch (result)
{
case MessageBoxResult.OK:
String dirName = Path.GetDirectoryName(Config.FaceListTextFile);
Directory.CreateDirectory(dirName);
File.Create(Config.FaceListTextFile).Close();
break;
}
}
StreamReader reader = new StreamReader(Config.FaceListTextFile);
int i = 0;
while ((line = reader.ReadLine()) != null)
{
string[] lineParts = line.Split(':');
faceInstance = new FaceData();
faceInstance.FaceImage = new Image <Gray, byte>(Config.FacePhotosPath + lineParts[0] + Config.ImageFileExtension);
faceInstance.PersonName = lineParts[1];
faceList.Add(faceInstance);
}
foreach (var face in faceList)
{
imageList.Push(face.FaceImage.Mat);
nameList.Add(face.PersonName);
labelList.Push(new[] { i++ });
}
reader.Close();
// Train recogniser
if (imageList.Size > 0)
{
recognizer = new EigenFaceRecognizer(imageList.Size);
recognizer.Train(imageList, labelList);
}
}
