public bool CheckSignature([FromBody] SignatureDTO aSig)
{
SignatureData lSignatureData = SignatureUtils.SignatureUtils.GetSignatureFromBase64String(aSig.Signature, aSig.Email);
Signature lSigWithCharacteristics = SignatureUtils.SignatureUtils.CalculateCharacteristics(lSignatureData.Signature);
lSigWithCharacteristics = SignatureUtils.SignatureUtils.StandardizeSignature(lSigWithCharacteristics);
var lDirectory = "d:\\Signatures\\" + lSignatureData.Email + "\\";
//Get all signatures from folder. True flag indicates, that all characteristics we are working with are stored in the file, these will be loaded too
List <Signature> lSignatures = SignatureFileUtils.GetAllSignaturesFromFolder(lDirectory, true);
DTWConfiguration lDTWConfig = new DTWConfiguration()
.UseXY()
.UseX1Y1()
.UseX2Y2()
.UseForce()
.UseForce1()
.UsePathVelocity();
//Check for NaN values at Force and Force1 characrteristics.
SignatureUtils.SignatureUtils.CheckForNaN(lSigWithCharacteristics, ref lDTWConfig);
return(SignatureQualityEvaluation.Authenticate(lDirectory, lSigWithCharacteristics, lDTWConfig, 0.05));
}
public static void CompareMCYT(string aFolder, int aNrOfTrainingSamples, DTWConfiguration aDTWConfig, ref StreamWriter aSWriter)
{
List <Signature> lSignatures = SignatureFileUtils.GetAllSignaturesFromFolder(aFolder);
List <Signature> lTemplate = lSignatures.Skip(25).Take(aNrOfTrainingSamples).ToList();
List <Signature> lOriginalSignatures = lSignatures.Skip(25 + aNrOfTrainingSamples).Take(25 - aNrOfTrainingSamples).ToList();
List <Signature> lImpostorSignatures = lSignatures.Take(15).ToList();
for (int i = 0; i < lTemplate.Count; ++i)
{
var lElement = lTemplate.ElementAt(i);
var lNewElement = SignatureUtils.SignatureUtils.CalculateCharacteristics(lElement);
lNewElement = SignatureUtils.SignatureUtils.StandardizeSignature(lNewElement);
lTemplate.RemoveAt(i);
lTemplate.Insert(i, lNewElement);
}
for (int i = 0; i < lOriginalSignatures.Count; ++i)
{
var lElement = lOriginalSignatures.ElementAt(i);
var lNewElement = SignatureUtils.SignatureUtils.CalculateCharacteristics(lElement);
lNewElement = SignatureUtils.SignatureUtils.StandardizeSignature(lNewElement);
lOriginalSignatures.RemoveAt(i);
lOriginalSignatures.Insert(i, lNewElement);
}
for (int i = 0; i < lImpostorSignatures.Count; ++i)
{
var lElement = lImpostorSignatures.ElementAt(i);
var lNewElement = SignatureUtils.SignatureUtils.CalculateCharacteristics(lElement);
lNewElement = SignatureUtils.SignatureUtils.StandardizeSignature(lNewElement);
lImpostorSignatures.RemoveAt(i);
lImpostorSignatures.Insert(i, lNewElement);
}
List <double> lOriginalScores = SignatureUtils.SignatureUtils.CompareSignaturesDTW(lTemplate, lOriginalSignatures, aDTWConfig);
List <double> lImpostorScores = SignatureUtils.SignatureUtils.CompareSignaturesDTW(lTemplate, lImpostorSignatures, aDTWConfig);
ErrorCalculation lError = ErrorCalculationFactory.GetDScoreErrorCalculator();
lError.CalculateErrors(lOriginalScores, lImpostorScores, 100);
//var lFARList = lError.GetFARList();
//var lFRRList = lError.GetFRRList();
//var lTresholdList = lError.GetThresholdList();
//for(int i = 0; i < lFARList.Count; ++i)
//{
// aSWriter.WriteLine(lFARList.ElementAt(i) + "," + lFRRList.ElementAt(i) + ", " + lTresholdList.ElementAt(i));
//}
aSWriter.WriteLine(lError.GetERR());
}
public int SaveSignature([FromBody] SignatureDTO aSig)
{
//Get signature from the Base64Encoded string
SignatureData lSignatureData = SignatureUtils.SignatureUtils.GetSignatureFromBase64String(aSig.Signature, aSig.Email);
var lDirectory = "d:\\Signatures\\" + lSignatureData.Email + "\\";
if (!System.IO.Directory.Exists(lDirectory))
{
System.IO.Directory.CreateDirectory(lDirectory);
}
var fileName = lDirectory + DateTime.Now.Ticks.ToString() + ".csv";
var lFeaturesFileName = lDirectory + "\\SignatureFeatures\\" + "SignatureFeatures.csv";
//Calculate characteristics of the received signature and standardize it
Signature lSigWithCharacteristics = SignatureUtils.SignatureUtils.CalculateCharacteristics(lSignatureData.Signature);
lSigWithCharacteristics = SignatureUtils.SignatureUtils.StandardizeSignature(lSigWithCharacteristics);
//Create DTW configuration for the quality evaluation
DTWConfiguration lDTWConfig = new DTWConfiguration()
.UseXY()
.UseX1Y1();
//Check the quality of the signature. If it is a poor quality signature, request it once again
bool lResult = SignatureQualityEvaluation.CheckQuality(lDirectory, lSigWithCharacteristics, lDTWConfig);
if (lResult)
{
//Save function based data to csv file
SignatureFileUtils.SaveSignatureWithCharacteristicsToFile(lSigWithCharacteristics, fileName);
try
{
//Save feature based data to csv file
SignatureFeatures lFEatures = FeatureCalculator.CalculateFeatures(lSigWithCharacteristics);
if (!System.IO.Directory.Exists(lDirectory + "\\SignatureFeatures\\"))
{
System.IO.Directory.CreateDirectory(lDirectory + "\\SignatureFeatures\\");
}
SignatureFileUtils.SaveFeatureSetToFile(lFEatures, lFeaturesFileName);
}
catch (Exception ex)
{
//If an error occurs, do nothing
//An error can occur in case of the pressure related features, beacause some devices don't return the pressure value
}
return(1);
}
else
{
return(0);
}
}
public static void Compare(string aFolder, DTWConfiguration aDTWConfig, ref StreamWriter aSWriter)
{
List <Signature> lSignatures = SignatureFileUtils.GetAllSignaturesFromFolder(aFolder);
List <Signature> lTemplate = lSignatures.Take(5).ToList();
List <Signature> lOriginalSignatures = lSignatures.Skip(5).Take(13).ToList();
List <Signature> lImpostorSignatures = lSignatures.Skip(18).Take(9).ToList();
for (int i = 0; i < lTemplate.Count; ++i)
{
var lElement = lTemplate.ElementAt(i);
var lNewElement = SignatureUtils.SignatureUtils.CalculateCharacteristics(lElement);
lNewElement = SignatureUtils.SignatureUtils.StandardizeSignature(lNewElement);
lTemplate.RemoveAt(i);
lTemplate.Insert(i, lNewElement);
}
for (int i = 0; i < lOriginalSignatures.Count; ++i)
{
var lElement = lOriginalSignatures.ElementAt(i);
var lNewElement = SignatureUtils.SignatureUtils.CalculateCharacteristics(lElement);
lNewElement = SignatureUtils.SignatureUtils.StandardizeSignature(lNewElement);
lOriginalSignatures.RemoveAt(i);
lOriginalSignatures.Insert(i, lNewElement);
}
for (int i = 0; i < lImpostorSignatures.Count; ++i)
{
var lElement = lImpostorSignatures.ElementAt(i);
var lNewElement = SignatureUtils.SignatureUtils.CalculateCharacteristics(lElement);
lNewElement = SignatureUtils.SignatureUtils.StandardizeSignature(lNewElement);
lImpostorSignatures.RemoveAt(i);
lImpostorSignatures.Insert(i, lNewElement);
}
List <double> lOriginalScores = SignatureUtils.SignatureUtils.CompareSignaturesDTW(lTemplate, lOriginalSignatures, aDTWConfig);
List <double> lImpostorScores = SignatureUtils.SignatureUtils.CompareSignaturesDTW(lTemplate, lImpostorSignatures, aDTWConfig);
ErrorCalculation lError = ErrorCalculationFactory.GetDScoreErrorCalculator();
lError.CalculateErrors(lOriginalScores, lImpostorScores, 100);
aSWriter.WriteLine(lError.GetERR());
}
public static double CompareMCYTFusion(string aFolder, int aNrOfTrainingSamples, DTWConfiguration aDTWConfig, ref StreamWriter aSWriter)
{
List <Signature> lSignatures = SignatureFileUtils.GetAllSignaturesFromFolder(aFolder);
List <Signature> lTemplate = lSignatures.Skip(25).Take(aNrOfTrainingSamples).ToList();
List <Signature> lOriginalSignatures = lSignatures.Skip(25 + aNrOfTrainingSamples).Take(25 - aNrOfTrainingSamples).ToList();
List <Signature> lImpostorSignatures = lSignatures.Take(15).ToList();
//retrieve feature set
List <SignatureFeatures> lFeaturesTemplate = new List <SignatureFeatures>();
List <SignatureFeatures> lFeaturesOriginal = new List <SignatureFeatures>();
List <SignatureFeatures> lFeaturesImpostor = new List <SignatureFeatures>();
for (int i = 0; i < lTemplate.Count; ++i)
{
var lElement = lTemplate.ElementAt(i);
var lNewElement = SignatureUtils.SignatureUtils.CalculateCharacteristics(lElement);
lNewElement = SignatureUtils.SignatureUtils.StandardizeSignature(lNewElement);
lTemplate.RemoveAt(i);
lTemplate.Insert(i, lNewElement);
lFeaturesTemplate.Add(FeatureCalculator.CalculateFeatures(lNewElement));
}
for (int i = 0; i < lOriginalSignatures.Count; ++i)
{
var lElement = lOriginalSignatures.ElementAt(i);
var lNewElement = SignatureUtils.SignatureUtils.CalculateCharacteristics(lElement);
lNewElement = SignatureUtils.SignatureUtils.StandardizeSignature(lNewElement);
lOriginalSignatures.RemoveAt(i);
lOriginalSignatures.Insert(i, lNewElement);
lFeaturesOriginal.Add(FeatureCalculator.CalculateFeatures(lNewElement));
}
for (int i = 0; i < lImpostorSignatures.Count; ++i)
{
var lElement = lImpostorSignatures.ElementAt(i);
var lNewElement = SignatureUtils.SignatureUtils.CalculateCharacteristics(lElement);
lNewElement = SignatureUtils.SignatureUtils.StandardizeSignature(lNewElement);
lImpostorSignatures.RemoveAt(i);
lImpostorSignatures.Insert(i, lNewElement);
lFeaturesImpostor.Add(FeatureCalculator.CalculateFeatures(lNewElement));
}
ManhattanDetector lEuclideanDetector = new ManhattanDetector(lFeaturesTemplate);
List <double> lListOfScores = new List <double>();
//aDetector.CalculateScores()
List <double> lOriginalScoresGlobal = lEuclideanDetector.CompareToTemplate(lFeaturesOriginal);
List <double> lImpostorScoresGlobal = lEuclideanDetector.CompareToTemplate(lFeaturesImpostor);
//int lNumberOfOriginalScores;
//int lNumberOfImpostorScores;
//lListOfScores.AddRange(lOriginalScoresGlobal);
//lListOfScores.AddRange(lImpostorScoresGlobal);
//lListOfScores = SignatureUtils.SignatureUtils.MinMaxNormalization(lListOfScores);
//lNumberOfOriginalScores = lOriginalScoresGlobal.Count;
//lNumberOfImpostorScores = lImpostorScoresGlobal.Count;
//lOriginalScoresGlobal = new List<double>();
//lOriginalScoresGlobal.AddRange(lListOfScores.Take(lNumberOfOriginalScores));
//lImpostorScoresGlobal = new List<double>();
//lImpostorScoresGlobal.AddRange(lListOfScores.Skip(lNumberOfOriginalScores).Take(lNumberOfImpostorScores));
List <double> lOriginalScoresLocal = SignatureUtils.SignatureUtils.CompareSignaturesDTW(lTemplate, lOriginalSignatures, aDTWConfig);
List <double> lImpostorScoresLocal = SignatureUtils.SignatureUtils.CompareSignaturesDTW(lTemplate, lImpostorSignatures, aDTWConfig);
aSWriter.WriteLine("Original Scores Local" + "," + "Original Scores Global");
for (int i = 0; i < lOriginalScoresLocal.Count; ++i)
{
aSWriter.WriteLine(lOriginalScoresLocal.ElementAt(i) + "," + lOriginalScoresGlobal.ElementAt(i));
}
//lListOfScores = new List<double>();
//lListOfScores.AddRange(lOriginalScoresLocal);
//lListOfScores.AddRange(lImpostorScoresLocal);
//lListOfScores = SignatureUtils.SignatureUtils.MinMaxNormalization(lListOfScores);
//lNumberOfOriginalScores = lOriginalScoresLocal.Count;
//lNumberOfImpostorScores = lImpostorScoresLocal.Count;
//lOriginalScoresLocal = new List<double>();
//lOriginalScoresLocal.AddRange(lListOfScores.Take(lNumberOfOriginalScores));
//lImpostorScoresLocal = new List<double>();
//lImpostorScoresLocal.AddRange(lListOfScores.Skip(lNumberOfOriginalScores).Take(lNumberOfImpostorScores));
aSWriter.WriteLine("Impostor Scores Local" + "," + "Impostor Scores Global");
for (int i = 0; i < lImpostorScoresLocal.Count; ++i)
{
aSWriter.WriteLine(lImpostorScoresLocal.ElementAt(i) + "," + lImpostorScoresGlobal.ElementAt(i));
}
//List<double> lOriginalScores = SignatureUtils.SignatureUtils.ScoreFusion(lOriginalScoresLocal, lOriginalScoresGlobal);
//List<double> lImpostorScores = SignatureUtils.SignatureUtils.ScoreFusion(lImpostorScoresLocal, lImpostorScoresGlobal);
//aSWriter.WriteLine("Impostor Scores");
//for (int i = 0; i < lImpostorScores.Count; ++i)
//{
// aSWriter.WriteLine(lImpostorScores.ElementAt(i));
//}
//aSWriter.WriteLine("Original Scores");
//for (int i = 0; i < lOriginalScores.Count; ++i)
//{
// aSWriter.WriteLine(lOriginalScores.ElementAt(i));
//}
//ErrorCalculation lError = ErrorCalculationFactory.GetDScoreErrorCalculator();
//lError.CalculateErrors(lOriginalScores, lImpostorScores, 100);
//var lFARList = lError.GetFARList();
//var lFRRList = lError.GetFRRList();
//var lTresholdList = lError.GetThresholdList();
//for(int i = 0; i < lFARList.Count; ++i)
//{
// aSWriter.WriteLine(lFARList.ElementAt(i) + "," + lFRRList.ElementAt(i) + ", " + lTresholdList.ElementAt(i));
//}
//for (int i = 0; i < lOriginalScoresLocal.Count; ++i)
//{
// aSWriter.WriteLine(lOriginalScoresLocal.ElementAt(i) + "," + lOriginalScoresGlobal.ElementAt(i));
//}
//aSWriter.WriteLine(lError.GetERR());
return(1);
}
static void Main(string[] args)
{
StreamWriter file1 = new StreamWriter("d:\\" + "Result_MOBISIG_Scores_" + DateTime.Now.Ticks.ToString() + ".csv");
DTWConfiguration lDTWConfig = new DTWConfiguration();
List <double> lAllOriginalScoresGlobal = new List <double>();
List <double> lAllOriginalScoresGlobal2 = new List <double>();
List <double> lAllOriginalScoresLocal = new List <double>();
List <double> lAllImpostorScoresGlobal = new List <double>();
List <double> lAllImpostorScoresGlobal2 = new List <double>();
List <double> lAllImpostorScoresLocal = new List <double>();
Console.Write("Path to directory: ");
string lPath = Console.ReadLine();
string[] lSubdirectoryEntries = Directory.GetDirectories(lPath);
lDTWConfig = new DTWConfiguration()
.UseXY()
.UseX1Y1()
.UseX2Y2();
int aNrOfTrainingSamples = 10;
foreach (var directory in lSubdirectoryEntries)
{
Console.WriteLine("Processing " + directory + " directory");
List <Signature> lSignatures = SignatureFileUtils.GetAllSignaturesFromFolder(directory);
//MCYT
//List<Signature> lTemplate = lSignatures.Skip(25).Take(aNrOfTrainingSamples).ToList();
//List<Signature> lOriginalSignatures = lSignatures.Skip(25 + aNrOfTrainingSamples).Take(25 - aNrOfTrainingSamples).ToList();
//List<Signature> lImpostorSignatures = lSignatures.Take(15).ToList();
//MOBISIG
List <Signature> lTemplate = lSignatures.Skip(20).Take(aNrOfTrainingSamples).ToList();
List <Signature> lOriginalSignatures = lSignatures.Skip(20 + aNrOfTrainingSamples).Take(25 - aNrOfTrainingSamples).ToList();
List <Signature> lImpostorSignatures = lSignatures.Take(15).ToList();
//retrieve feature set
List <SignatureFeatures> lFeaturesTemplate = new List <SignatureFeatures>();
List <SignatureFeatures> lFeaturesOriginal = new List <SignatureFeatures>();
List <SignatureFeatures> lFeaturesImpostor = new List <SignatureFeatures>();
for (int i = 0; i < lTemplate.Count; ++i)
{
var lElement = lTemplate.ElementAt(i);
var lNewElement = SignatureUtils.SignatureUtils.CalculateCharacteristics(lElement);
lNewElement = SignatureUtils.SignatureUtils.StandardizeSignature(lNewElement);
lTemplate.RemoveAt(i);
lTemplate.Insert(i, lNewElement);
lFeaturesTemplate.Add(FeatureCalculator.CalculateFeatures(lNewElement));
}
for (int i = 0; i < lOriginalSignatures.Count; ++i)
{
var lElement = lOriginalSignatures.ElementAt(i);
var lNewElement = SignatureUtils.SignatureUtils.CalculateCharacteristics(lElement);
lNewElement = SignatureUtils.SignatureUtils.StandardizeSignature(lNewElement);
lOriginalSignatures.RemoveAt(i);
lOriginalSignatures.Insert(i, lNewElement);
lFeaturesOriginal.Add(FeatureCalculator.CalculateFeatures(lNewElement));
}
for (int i = 0; i < lImpostorSignatures.Count; ++i)
{
var lElement = lImpostorSignatures.ElementAt(i);
var lNewElement = SignatureUtils.SignatureUtils.CalculateCharacteristics(lElement);
lNewElement = SignatureUtils.SignatureUtils.StandardizeSignature(lNewElement);
lImpostorSignatures.RemoveAt(i);
lImpostorSignatures.Insert(i, lNewElement);
lFeaturesImpostor.Add(FeatureCalculator.CalculateFeatures(lNewElement));
}
ManhattanDetector lManhattanDetector = new ManhattanDetector(lFeaturesTemplate);
EuclideanDetector lEuclideanDetector = new EuclideanDetector(lFeaturesTemplate);
List <double> lListOfScores = new List <double>();
//aDetector.CalculateScores()
List <double> lOriginalScoresGlobal = lManhattanDetector.CompareToTemplate(lFeaturesOriginal);
List <double> lImpostorScoresGlobal = lManhattanDetector.CompareToTemplate(lFeaturesImpostor);
List <double> lOriginalScoresGlobal2 = lEuclideanDetector.CompareToTemplate(lFeaturesOriginal);
List <double> lImpostorScoresGlobal2 = lEuclideanDetector.CompareToTemplate(lFeaturesImpostor);
List <double> lOriginalScoresLocal = SignatureUtils.SignatureUtils.CompareSignaturesDTW(lTemplate, lOriginalSignatures, lDTWConfig);
List <double> lImpostorScoresLocal = SignatureUtils.SignatureUtils.CompareSignaturesDTW(lTemplate, lImpostorSignatures, lDTWConfig);
lAllOriginalScoresGlobal.AddRange(lOriginalScoresGlobal);
lAllOriginalScoresGlobal2.AddRange(lOriginalScoresGlobal2);
lAllOriginalScoresLocal.AddRange(lOriginalScoresLocal);
lAllImpostorScoresGlobal.AddRange(lImpostorScoresGlobal);
lAllImpostorScoresGlobal2.AddRange(lImpostorScoresGlobal2);
lAllImpostorScoresLocal.AddRange(lImpostorScoresLocal);
}
file1.WriteLine("Original Scores Local" + "," + "Original Scores Manhattan" + "," + "Original Scores Euclidean");
for (int i = 0; i < lAllOriginalScoresLocal.Count; ++i)
{
file1.WriteLine(lAllOriginalScoresLocal.ElementAt(i) + "," + lAllOriginalScoresGlobal.ElementAt(i) + "," + lAllOriginalScoresGlobal2.ElementAt(i));
}
file1.WriteLine("Impostor Scores Local" + "," + "Impostor Scores Manhattan" + "," + "Impostor Scores Euclidean");
for (int i = 0; i < lAllImpostorScoresLocal.Count; ++i)
{
file1.WriteLine(lAllImpostorScoresLocal.ElementAt(i) + "," + lAllImpostorScoresGlobal.ElementAt(i) + "," + lAllImpostorScoresGlobal2.ElementAt(i));
}
file1.Close();
}
public static double CompareMobisigFeatureBased(string aFolder, int aNrOfTrainingSamples, ref StreamWriter aSWriter)
{
List <Signature> lSignatures = SignatureFileUtils.GetAllSignaturesFromFolder(aFolder);
List <Signature> lTemplate = lSignatures.Skip(20).Take(aNrOfTrainingSamples).ToList();
List <Signature> lOriginalSignatures = lSignatures.Skip(20 + aNrOfTrainingSamples).Take(25 - aNrOfTrainingSamples).ToList();
List <Signature> lImpostorSignatures = lSignatures.Take(15).ToList();
//retrieve feature set
List <SignatureFeatures> lFeaturesTemplate = new List <SignatureFeatures>();
List <SignatureFeatures> lFeaturesOriginal = new List <SignatureFeatures>();
List <SignatureFeatures> lFeaturesImpostor = new List <SignatureFeatures>();
for (int i = 0; i < lTemplate.Count; ++i)
{
var lElement = lTemplate.ElementAt(i);
var lNewElement = SignatureUtils.SignatureUtils.CalculateCharacteristics(lElement);
lNewElement = SignatureUtils.SignatureUtils.StandardizeSignature(lNewElement);
lTemplate.RemoveAt(i);
lTemplate.Insert(i, lNewElement);
lFeaturesTemplate.Add(FeatureCalculator.CalculateFeatures(lElement));
}
for (int i = 0; i < lOriginalSignatures.Count; ++i)
{
var lElement = lOriginalSignatures.ElementAt(i);
var lNewElement = SignatureUtils.SignatureUtils.CalculateCharacteristics(lElement);
lNewElement = SignatureUtils.SignatureUtils.StandardizeSignature(lNewElement);
lOriginalSignatures.RemoveAt(i);
lOriginalSignatures.Insert(i, lNewElement);
lFeaturesOriginal.Add(FeatureCalculator.CalculateFeatures(lElement));
}
for (int i = 0; i < lImpostorSignatures.Count; ++i)
{
var lElement = lImpostorSignatures.ElementAt(i);
var lNewElement = SignatureUtils.SignatureUtils.CalculateCharacteristics(lElement);
lNewElement = SignatureUtils.SignatureUtils.StandardizeSignature(lNewElement);
lImpostorSignatures.RemoveAt(i);
lImpostorSignatures.Insert(i, lNewElement);
lFeaturesImpostor.Add(FeatureCalculator.CalculateFeatures(lElement));
}
EuclideanDetector lEuclideanDetector = new EuclideanDetector(lFeaturesTemplate);
//aDetector.CalculateScores()
List <double> lOriginalScores = lEuclideanDetector.CompareToTemplate(lFeaturesOriginal);
List <double> lImpostorScores = lEuclideanDetector.CompareToTemplate(lFeaturesImpostor);
ErrorCalculation lError = ErrorCalculationFactory.GetDScoreErrorCalculator();
lError.CalculateErrors(lOriginalScores, lImpostorScores, 100);
//var lFARList = lError.GetFARList();
//var lFRRList = lError.GetFRRList();
//var lTresholdList = lError.GetThresholdList();
//for(int i = 0; i < lFARList.Count; ++i)
//{
// aSWriter.WriteLine(lFARList.ElementAt(i) + "," + lFRRList.ElementAt(i) + ", " + lTresholdList.ElementAt(i));
//}
aSWriter.WriteLine(lError.GetERR());
return(lError.GetERR());
}
