public static double CompareFingerprints(Bitmap bitmap1, Bitmap bitmap2)
//public static double CompareFingerprints(byte[] inputFingerprint, byte[] databaseFingerprint)
{
//var incomingImage1 = Image.FromStream(new MemoryStream(inputFingerprint));
//var bitmap1 = new Bitmap(incomingImage1);
//var incomingImage2 = Image.FromStream(new MemoryStream(databaseFingerprint));
//var bitmap2 = new Bitmap(incomingImage2);
var fingerprintImg1 = bitmap1;
var fingerprintImg2 = bitmap2;
// Building feature extractor and extracting features
var featExtractor = new MTripletsExtractor()
{
MtiaExtractor = new Ratha1995MinutiaeExtractor()
};
var features1 = featExtractor.ExtractFeatures(fingerprintImg1);
var features2 = featExtractor.ExtractFeatures(fingerprintImg2);
// Building matcher and matching
var matcher = new M3gl();
var similarity = matcher.Match(features1, features2);
return(similarity);
}
public override void Show(List <Minutia> features, Graphics g)
{
var mtpFeatureExtractor = new MTripletsExtractor()
{
NeighborsCount = 2
};
MtripletsFeature mtriplets = mtpFeatureExtractor.ExtractFeatures(features);
foreach (MTriplet mt in mtriplets.MTriplets)
{
Pen pen = new Pen(Color.Blue)
{
Width = 2
};
Point[] points = new Point[3];
for (int i = 0; i < 3; i++)
{
points[i] = new Point()
{
X = Convert.ToInt32(mt[i].X),
Y = Convert.ToInt32(mt[i].Y)
}
}
;
g.DrawPolygon(new Pen(Color.White, 4), points);
g.DrawPolygon(pen, points);
}
var mtiaDisplay = new MinutiaeDisplay();
mtiaDisplay.Show(mtriplets.Minutiae, g);
}
}
public static bool compareFP(Image inFp, List <Image> dbFp)
{
// Description: compares the scanned fingerprint to all of the ones in the database
bool isMatch = false;
double matchTol = 0.4;
// Build feature extractor, and extract features of each fingerprint image
MTripletsExtractor featExtract = new MTripletsExtractor()
{
MtiaExtractor = new Ratha1995MinutiaeExtractor()
};
var inFeat = featExtract.ExtractFeatures(new Bitmap(inFp));
// Build matcher
M3gl matcher = new M3gl();
// Compare scanned image to all the ones in the database
int numFp = dbFp.Count;
//inFp.Save("in.bmp"); testing
for (int i = 0; i < numFp; i++)
{
// Convert dbFp to Bitmap image object
// DEBUG: save to file
// Extract features of dbBmp
var dbFeat = featExtract.ExtractFeatures(new Bitmap(dbFp[i]));
// Run similarity check
var match = matcher.Match(inFeat, dbFeat);
//dbFp[i].Save("dbFP-"+i.ToString()+".bmp"); testing
if (match >= matchTol)
{
// Fingerprints have above 0.5 similarity
isMatch = true;
Console.WriteLine("Similarity: ", match); // Debug
break; // Comment for debug
}
}
return(isMatch);
}
private double MatchfingerPrints(Bitmap im1, Bitmap im2)
{
// Loading fingerprints
var fingerprintImg1 = im1;
var fingerprintImg2 = im2;
// Building feature extractor and extracting features
var featExtractor = new MTripletsExtractor()
{
MtiaExtractor = new Ratha1995MinutiaeExtractor()
};
var features1 = featExtractor.ExtractFeatures(fingerprintImg1);
var features2 = featExtractor.ExtractFeatures(fingerprintImg2);
// Building matcher and matching
var matcher = new M3gl();
double similarity = matcher.Match(features1, features2);
return(similarity * 100);
}
public void Test1()
{
string s;
try
{
//https://www.codeproject.com/Articles/97590/A-Framework-in-C-for-Fingerprint-Verification
double similarity = 0;
s = "Hello";
// Loading fingerprints
var fingerprintImg1 = ImageLoader.LoadImage2("fp1.jpg");
var fingerprintImg2 = ImageLoader.LoadImage2("fp1.jpg");
//var fingerprintImg1 = new Bitmap(stream1);
//var fingerprintImg2 = new Bitmap(stream2);
// Building feature extractor and extracting features
var featExtractor = new MTripletsExtractor()
{
MtiaExtractor = new Ratha1995MinutiaeExtractor()
};
var features1 = featExtractor.ExtractFeatures(fingerprintImg1);
var features2 = featExtractor.ExtractFeatures(fingerprintImg2);
// Building matcher and matching
var matcher = new M3gl();
similarity = matcher.Match(features1, features2);
s = "Bye with similarity: " + similarity.ToString();
}
catch (Exception e)
{
var errorMsg = ("Error: " + e.ToString());
s = errorMsg;
}
}
