private static void DetectFaces()
{
var grayframe = CurrentFullFrame.Convert <Gray, byte>();
Faces = FrontalFaceCascadeClassifier.DetectMultiScale(grayframe, 1.1, 10, Size.Empty);
FacesDetected = Faces.Length > 0;
}
private void FacesRecognizerElapsed(object sender, System.Timers.ElapsedEventArgs e)
{
Users.Clear();
if (Faces.Length == 0 && IsBrowserOpen)
{
ShutdownBrowserSession();
}
foreach (var face in Faces)
{
var grayframe = CurrentFullFrame.Convert <Gray, byte>();
CurrentCroppedFrame = new Image <Gray, byte>(Crop(grayframe.ToBitmap(), face.Left, face.Top, face.Width, face.Height));
var result = RecognizerEngine.RecognizeUser(CurrentCroppedFrame);
Users.Add(new User
{
UserName = result.UserName,
URL = result.URL,
Distance = result.Distance,
Face = face
});
if (IsBrowserOpen && result.UserName.Equals(Config.UnrecognizedUserName))
{
AuthenticatedButUnrecognizedCount++;
if (AuthenticatedButUnrecognizedCount == 3)
{
ShutdownBrowserSession();
AuthenticatedButUnrecognizedCount = 1;
}
}
// Recognized & valid user found.
if (!result.UserName.Equals(Config.UnrecognizedUserName))
{
if (IsBrowserOpen) // Browser already open.
{
if (result.UserName.Equals(UserName) && result.URL.Equals(URL)) // Same user is still in front of the camera, continue.
{
continue;
}
else // Browser is open but a different user is found. Shut down for privacy.
{
ShutdownBrowserSession();
}
}
else // Browser not open, launch with the current user's URL.
{
IsBrowserOpen = true;
Application.Idle -= ProcessFrame;
UserName = result.UserName;
URL = result.URL;
BrowserProcessID = Process.Start($"http://{URL}").Id;
}
}
}
}
private void FacesRecognizerElapsed(object sender, System.Timers.ElapsedEventArgs e)
{
Users.Clear();
foreach (var face in Faces)
{
var grayframe = CurrentFullFrame.Convert <Gray, byte>();
CurrentCroppedFrame = new Image <Gray, byte>(Crop(grayframe.ToBitmap(), face.Left, face.Top, face.Width, face.Height));
var result = RecognizerEngine.RecognizeUser(CurrentCroppedFrame);
Users.Add(new User
{
UserName = result.UserName,
URL = result.URL,
Distance = result.Distance,
Face = face
});
if (result.UserName.Equals(Config.UnrecognizedUserName))
{
AuthenticatedButUnrecognizedCount++;
if (AuthenticatedButUnrecognizedCount == 3)
{
AuthenticatedButUnrecognizedCount = 1;
}
}
// Recognized & valid user found.
if (!result.UserName.Equals(Config.UnrecognizedUserName))
{
if (result.UserName.Equals(UserName)) // Same user is still in front of the camera, continue.
{
UserName = result.UserName;
continue;
}
}
}
}
private void AddUserButton_Click(object sender, EventArgs e)
{
try
{
if (Faces.Length > 0)
{
var croppedImage = Crop(CurrentFullFrame.Convert <Gray, byte>().ToBitmap(), Faces[0].Left, Faces[0].Top, Faces[0].Width, Faces[0].Height);
var result = RecognizerEngine.RecognizeUser(new Image <Gray, byte>(croppedImage));
File = (byte[])new ImageConverter().ConvertTo(croppedImage, typeof(byte[]));
UserInfo userInfoForm = new UserInfo();
if (!result.UserName.Equals(Config.UnrecognizedUserName))
{
userInfoForm.Populate(result.UserName, result.URL);
}
userInfoForm.Show();
userInfoForm.Activate();
}
}
catch (Exception)
{
return;
}
}