protected DPFP.FeatureSet ExtractFeatures(DPFP.Sample Sample, DPFP.Processing.DataPurpose Purpose)
{
DPFP.Processing.FeatureExtraction Extractor = new DPFP.Processing.FeatureExtraction(); // Create a feature extractor
DPFP.Capture.CaptureFeedback feedback = DPFP.Capture.CaptureFeedback.None;
DPFP.FeatureSet features = new DPFP.FeatureSet();
Extractor.CreateFeatureSet(Sample, Purpose, ref feedback, ref features); // TODO: return features as a result?
debugFeedback = feedback;
if (feedback == DPFP.Capture.CaptureFeedback.Good)
{
notifyEvent = new FingerArgs(ReaderSerialNumber, FingerArgs.FingerNotify.RN_CaptureGood, "Capture is Good");
if (NotifyEvent != null)
{
NotifyEvent(this, notifyEvent);
}
return(features);
}
else
{
notifyEvent = new FingerArgs(ReaderSerialNumber, FingerArgs.FingerNotify.RN_CaptureBad, feedback.ToString());
if (NotifyEvent != null)
{
NotifyEvent(this, notifyEvent);
}
return(null);
}
}
protected void Stop()
{
SetTextBox("Request Stop", DateTime.Now);
if (null != Capturer)
{
try
{
Capturer.StopCapture();
notifyEvent = new FingerArgs(ReaderSerialNumber, FingerArgs.FingerNotify.RN_FingerSucceedToStopCapture, "Fingerprint Stopped");
if (NotifyEvent != null)
{
SetTextBox("Fingerprint Stopped", DateTime.Now);
NotifyEvent(this, notifyEvent);
}
}
catch
{
notifyEvent = new FingerArgs(ReaderSerialNumber, FingerArgs.FingerNotify.RN_FingerFailedToStopCapture, "Fingerprint fails to stop");
if (NotifyEvent != null)
{
SetTextBox("Can't terminate capture!", DateTime.Now);
NotifyEvent(this, notifyEvent);
}
}
}
}
protected void Start()
{
SetTextBox("Request Start", DateTime.Now);
if (null != Capturer)
{
try
{
Capturer.StartCapture();
if (Mode == FingerprintMode.Verify)
{
notifyEvent = new FingerArgs(ReaderSerialNumber, FingerArgs.FingerNotify.RN_FingerSucceedToStartCapture, "Fingerprint wait Capture");
if (NotifyEvent != null)
{
SetTextBox("Capture Process", DateTime.Now);
NotifyEvent(this, notifyEvent);
}
}
}
catch
{
notifyEvent = new FingerArgs(ReaderSerialNumber, FingerArgs.FingerNotify.RN_FingerFailedToStartCapture, "Can't initiate capture!");
if (NotifyEvent != null)
{
SetTextBox("Can't initiate capture!", DateTime.Now);
NotifyEvent(this, notifyEvent);
}
}
}
}
protected virtual void Init(string serialFinger)
{
try
{
SetTextBox("Request Init", DateTime.Now);
Stop();
if (serialFinger != null)
{
Capturer = new DPFP.Capture.Capture(serialFinger, DPFP.Capture.Priority.Low); // Create a capture operation.
}
else
{
Capturer = new DPFP.Capture.Capture(DPFP.Capture.Priority.Low);
}
if (null != Capturer)
{
Capturer.EventHandler = this;
notifyEvent = new FingerArgs(ReaderSerialNumber, FingerArgs.FingerNotify.RN_FingerSucceedToInit, "Finger Initialized");
if (NotifyEvent != null)
{
SetTextBox("Finger Initialized", DateTime.Now);// Subscribe for capturing events.
NotifyEvent(this, notifyEvent);
}
}
else
{
notifyEvent = new FingerArgs(ReaderSerialNumber, FingerArgs.FingerNotify.RN_FingerFailedToInit, "Finger failed to Initialize");
if (NotifyEvent != null)
{
SetTextBox("Can't initiate capture operation!", DateTime.Now);
NotifyEvent(this, notifyEvent);
}
}
}
catch
{
notifyEvent = new FingerArgs(ReaderSerialNumber, FingerArgs.FingerNotify.RN_FingerFailedToInit, "Finger failed to Initialize");
if (NotifyEvent != null)
{
SetTextBox("Finger failed to Initialize", DateTime.Now);
NotifyEvent(this, notifyEvent);
}
}
if (Mode == FingerprintMode.Verify)
{
Verificator = new DPFP.Verification.Verification(FarThreshold); // Create a fingerprint template verificator FAR 0.01% > 214748
SetTextBox("Init Verificator with FAR : " + Verificator.FARRequested.ToString(), DateTime.Now);
if (bUseEmbedDB)
{
#if UseSQLITE
DBClassUser dbJob = new DBClassUser(UserList);
dbJob.RecoverUser();
#endif
}
}
}
public void OnReaderDisconnect(object Capture, string ReaderSerialNumber)
{
// Stop();
notifyEvent = new FingerArgs(ReaderSerialNumber, FingerArgs.FingerNotify.RN_FingerprintDisconnect, "The fingerprint reader was disconnected.");
if (NotifyEvent != null)
{
SetTextBox("The fingerprint reader was disconnected.", DateTime.Now);
NotifyEvent(this, notifyEvent);
}
}
public void OnReaderConnect(object Capture, string ReaderSerialNumber)
{
/*Init(FingerSerialNumber);
* Start(); */
TimeFingerTouch = DateTime.Now;
notifyEvent = new FingerArgs(ReaderSerialNumber, FingerArgs.FingerNotify.RN_FingerprintConnect, "The fingerprint reader was connected.");
if (NotifyEvent != null)
{
SetTextBox("The fingerprint reader was connected.", DateTime.Now);
NotifyEvent(this, notifyEvent);
}
}
public void OnComplete(object Capture, string ReaderSerialNumber, DPFP.Sample Sample)
{
bIsProcessed = true;
notifyEvent = new FingerArgs(ReaderSerialNumber, FingerArgs.FingerNotify.RN_CaptureGood, "The finger was successively capture by the fingerprint reader.");
if (NotifyEvent != null)
{
SetTextBox("The finger was successively capture by the fingerprint reader.", DateTime.Now);
NotifyEvent(this, notifyEvent);
}
saveBitmap(new Bitmap(ConvertSampleToBitmap(Sample)));
BmpFP = new Bitmap(ConvertSampleToBitmap(Sample));
Process(Sample);
}
public void OnFingerTouch(object Capture, string ReaderSerialNumber)
{
bIsProcessed = false;
serialFingerTouched = ReaderSerialNumber;
notifyEvent = new FingerArgs(ReaderSerialNumber, FingerArgs.FingerNotify.RN_FingerTouch, "The fingerprint reader was touched.");
if (NotifyEvent != null)
{
SetTextBox("The fingerprint reader was touched.", DateTime.Now);
NotifyEvent(this, notifyEvent);
}
TimeFingerTouch = DateTime.Now;
CloseFarFinger = int.MaxValue;
debugFeedback = DPFP.Capture.CaptureFeedback.None;
BmpFP = null;
TimeFingerGone = TimeFingerTouch;
debugFirstName = string.Empty;
debugLastName = string.Empty;
debugFinger = FingerIndexValue.Unknown_Finger;
pathImage = string.Empty;
errorCaptFP = true;
}
public void OnFingerGone(object Capture, string ReaderSerialNumber)
{
TimeSpan ts = TimeSpan.MinValue;
notifyEvent = new FingerArgs(ReaderSerialNumber, FingerArgs.FingerNotify.RN_FingerGone, "The finger was removed from the fingerprint reader.");
if (NotifyEvent != null)
{
SetTextBox("The finger was removed from the fingerprint reader.", DateTime.Now);
NotifyEvent(this, notifyEvent);
}
try
{
TimeFingerGone = DateTime.Now;
ts = TimeFingerGone - TimeFingerTouch;
if ((debugFP) && (ts.TotalSeconds < 10.0) && (errorCaptFP))
{
DebugFP wf = new DebugFP(debugFPFormVisible,
debugWindowTimeout,
sendDebugMail,
BmpFP,
this.ReaderSerialNumber,
TimeFingerTouch,
TimeFingerGone,
debugFirstName,
debugLastName,
debugFinger,
CloseFarFinger,
FarThreshold,
debugFeedback,
pathImage,
bIsProcessed,
SenderAdress,
LoginName,
Password,
SMTPServer,
SMTPPort);
wf.Show();
errorCaptFP = false;
}
}
catch (Exception exp)
{
SetTextBox("FP exception : " + exp.Message, DateTime.Now);
//MessageBox.Show("FP exception : " + exp.Message);
}
if (!bIsProcessed)
{
//renewFP();
//Stop();
//Init(FingerSerialNumber);
//Start();
//System.Threading.Thread.Sleep(500);
notifyEvent = new FingerArgs(ReaderSerialNumber, FingerArgs.FingerNotify.RN_CaptureBad, "The finger was not successively capture by the fingerprint reader.");
if (NotifyEvent != null)
{
SetTextBox("The finger was not successively capture by the fingerprint reader.", DateTime.Now);
NotifyEvent(this, notifyEvent);
}
}
}
protected virtual void Process(DPFP.Sample Sample)
{
if (Mode == FingerprintMode.Verify)
{
bool bVerified = false;
int fingerFind = -1;
UserClass VerifiedUser = new UserClass();
// Process the sample and create a feature set for the enrollment purpose.
DPFP.FeatureSet features = ExtractFeatures(Sample, DPFP.Processing.DataPurpose.Verification);
if (features != null)
{
foreach (UserClass TheUser in UserList)
{
FingerData fingdata = new FingerData();
fingdata.CopyUserToFinger(TheUser);
//foreach (DPFP.Template Template in fingdata.Templates)
for (int index = 0; index < 10; index++)
{
DPFP.Template Template = fingdata.Templates[index];
if (Template != null)
{
FingerIndexValue fiv = (FingerIndexValue)index;
// Compare the feature set with our template
DPFP.Verification.Verification.Result result = new DPFP.Verification.Verification.Result();
Verificator.Verify(features, Template, ref result);
SetTextBox("Verify : " + TheUser.firstName + " " + TheUser.lastName + " : " + fiv.ToString() +
" - FAR :" + result.FARAchieved.ToString() + " / " + Verificator.FARRequested.ToString()
+ " - Verified : " + result.Verified.ToString(), DateTime.Now);
if (CloseFarFinger > result.FARAchieved)
{
CloseFarFinger = result.FARAchieved;
}
if ((result.Verified) || (result.FARAchieved < Verificator.FARRequested))
{
bVerified = true;
VerifiedUser = TheUser;
fingerFind = index;
break;
}
}
}
if (bVerified)
{
break;
}
}
if (bVerified)
{
string strUser = VerifiedUser.firstName + ";" + VerifiedUser.lastName + ";" + fingerFind.ToString();
debugFirstName = VerifiedUser.firstName;
debugLastName = VerifiedUser.lastName;
debugFinger = (FingerIndexValue)fingerFind;
if (debugOnFailedOnly)
{
errorCaptFP = false;
}
notifyEvent = new FingerArgs(ReaderSerialNumber, FingerArgs.FingerNotify.RN_AuthentificationCompleted, strUser);
if (NotifyEvent != null)
{
SetTextBox("User verify : " + strUser, DateTime.Now);
NotifyEvent(this, notifyEvent);
}
}
else
{
debugFirstName = "Unknown User";
debugLastName = "Unknown User";
debugFinger = FingerIndexValue.Unknown_Finger;
notifyEvent = new FingerArgs(ReaderSerialNumber, FingerArgs.FingerNotify.RN_FingerUserUnknown, "Unknown User");
if (NotifyEvent != null)
{
SetTextBox("Unknown User", DateTime.Now);
NotifyEvent(this, notifyEvent);
}
}
}
}
}
