private void Recognize_Click(object sender, RoutedEventArgs e)
{
// Create OpenFileDialog
Microsoft.Win32.OpenFileDialog dlg = new Microsoft.Win32.OpenFileDialog();
// Set filter for file extension and default file extension
dlg.DefaultExt = ".png";
dlg.Filter = "JPG Files (*.jpg)|*.jpg|JPEG Files (*.jpeg)|*.jpeg|PNG Files (*.png)|*.png";
// Display OpenFileDialog by calling ShowDialog method
Nullable <bool> result = dlg.ShowDialog();
string filename;
// Get the selected file name and display in a TextBox
if (result == true)
{
// Open document
filename = dlg.FileName;
Capture capture = new Capture(filename);
var path = @"C:\opencv\build\etc\haarcascades\haarcascade_frontalface_alt2.xml";
try
{
CascadeClassifier _cascadeClassifier = new CascadeClassifier(path);
using (var imageFrame = capture.QueryFrame().ToImage <Bgr, Byte>())
{
if (imageFrame != null)
{
var grayframe = imageFrame.Convert <Gray, byte>();
var faces = _cascadeClassifier.DetectMultiScale(grayframe, 1.1, 10, System.Drawing.Size.Empty);
foreach (var face in faces)
{
imageFrame.Draw(face, new Bgr(Color.Red), 3);
}
}
var personalFace = BitmapToImageSource(imageFrame.Bitmap);
image.Source = personalFace;
var faceToRecognize = new Image <Gray, byte>(imageFrame.Bitmap);
var recogResult = dataStore.GetUsername(engine.Recognize(faceToRecognize));
if (recogResult == "")
{
recogResult = "No match.";
}
System.Windows.Forms.MessageBox.Show(recogResult, "Recognition Result", MessageBoxButtons.OK);
}
}
catch (Exception ex)
{
}
}
}
