public void AddFingerprint(FingerprintCard card, Image newprint)
{
using (var newconnect = new DbConnection())
{
if (!newconnect.Connect())
{
throw new CannotConnectToDatabaseException();
}
string query;
if (card.FingerprintList.Count == 0) //card is empty => register new card
{
query = "insert into usertbl values(\"" + card.guid + "\",\""
+ card.FirstName + "\",\"" + card.LastName + "\");";
newconnect.SendQueryAndClose(query);
}
query = "insert into fprinttbl values(?File,\""
+ card.guid + "\");";
byte[] rawimg = SerializeImage(newprint);
MySqlParameter pFile = new MySqlParameter("?File", rawimg);
newconnect.SendQueryAndClose(query, pFile);
card.FingerprintList.Add(newprint);
}
CachedDB.UpdateCard(card);
}
public FingerprintCard[] GetFingerprints()
{
FingerprintCard[] resultarray = CachedDB.getCacheDb(); //getCache
if (resultarray != null)
{
return(resultarray);
}
using (var newconnect = new DbConnection())
{
if (!newconnect.Connect())
{
throw new CannotConnectToDatabaseException();
}
string query = "select * from usertbl;";
MySqlDataReader reader = newconnect.SendQuery(query);
List <FingerprintCard> fingerprintlist = new List <FingerprintCard>();
while (reader.Read())
{
FingerprintCard newcard = new FingerprintCard(reader.GetValue(1).ToString(), reader.GetValue(2).ToString());
string guidstr = (string)reader.GetValue(0);
newcard.guid = new Guid(guidstr);
newcard.FingerprintList = GetFingerprintList(newcard.guid);
fingerprintlist.Add(newcard);
}
reader.Close();
resultarray = fingerprintlist.ToArray();
}
CachedDB.UpdateCache(resultarray);
return(resultarray);
}
public void AddFingerprint(FingerprintCard card, Image newprint)
{
using (var newconnect = new DbConnection())
{
if (!newconnect.Connect()) throw new CannotConnectToDatabaseException();
string query;
if (card.FingerprintList.Count == 0) //card is empty => register new card
{
query = "insert into usertbl values(\"" + card.guid + "\",\""
+ card.FirstName + "\",\"" + card.LastName + "\");";
newconnect.SendQueryAndClose(query);
}
query = "insert into fprinttbl values(?File,\""
+ card.guid + "\");";
byte[] rawimg = SerializeImage(newprint);
MySqlParameter pFile = new MySqlParameter("?File", rawimg);
newconnect.SendQueryAndClose(query, pFile);
card.FingerprintList.Add(newprint);
}
CachedDB.UpdateCard(card);
}
public void increaseCache()
{
capacity += 50;
FingerprintCard[] newarray = new FingerprintCard[capacity];
Array.Copy(CachedDatabase, newarray, CachedDatabase.Length);
CachedDatabase = newarray;
}
public void UpdateCard(FingerprintCard fcard)
{
if (CachedDatabase == null)
{
return; // caching is redundant
}
bool found = false;
for (int i = 0; i < loadfactor; ++i)
{
if (CachedDatabase[i].guid == fcard.guid)
{
CachedDatabase[i] = fcard;
found = true;
break;
}
}
if (!found)
{
CachedDatabase[loadfactor] = fcard;
++loadfactor;
}
if (loadfactor == capacity)
{
increaseCache();
}
}
/// <summary>
/// Identification
/// </summary>
/// <param name="fingerprint">image of fingerprint to identificate </param>
/// <param name="cards"></param>
/// <returns></returns>
public FingerprintCard Identify(Image fingerprint, FingerprintCard[] cards)
{
int numberOfVerified = 0;
FingerprintCard identifiedCard = null;
#region paranoia section
if (fingerprint == null)
{
throw new ArgumentNullException("fingerprint");
}
if (cards == null)
{
throw new ArgumentNullException("cards");
}
#endregion
foreach (FingerprintCard card in cards)
{
#region paranoia section
if (card == null)
{
throw new ArgumentNullException("card");
}
if (card.FingerprintList == null)
{
throw new ArgumentNullException("card.FingerprintList");
}
if (card.FingerprintList.Count == 0)
{
throw new ArgumentOutOfRangeException("card.FingerprintList.Count");
}
#endregion
// If successfuly verified
if (Verify(fingerprint, card))
{
identifiedCard = card;
numberOfVerified++;
if (numberOfVerified > 1 || numberOfVerified < 0)
{
throw new Exception("Oh shi~! Here is some critical security error!" +
"For current image successfuly verified more than one fingercard!");
}
}
}
// Decide what to return
switch (numberOfVerified)
{
case 0: return(null);
case 1: return(identifiedCard);
default: throw new Exception("You shouldn't be here!");
}
}
public FingerprintCard[] getCacheDb()
{
if (CachedDatabase == null)
{
return(null);
}
FingerprintCard[] returnarray = new FingerprintCard[loadfactor];
Array.Copy(CachedDatabase, returnarray, loadfactor);
return(returnarray);
}
/// <summary>
/// Verification
/// </summary>
/// <param name="fingerprint">image of fingerprint to verify</param>
/// <param name="card">card</param>
/// <returns>true if success, otherwise false</returns>
public bool Verify(Image fingerprint, FingerprintCard card)
{
// The best verification score reached
int maxScore = 0;
#region paranoia section
if (fingerprint == null)
{
throw new ArgumentNullException("fingerprint");
}
if (card == null)
{
throw new ArgumentNullException("card");
}
if (card.FingerprintList == null)
{
throw new ArgumentNullException("card.FingerprintList");
}
if (card.FingerprintList.Count == 0)
{
throw new ArgumentOutOfRangeException("card.FingerprintList.Count");
}
#endregion
FingerprintTemplate templateToVerify;
FingerprintRawImage rawImageToVerify = RawImageFromImage(fingerprint);
templateToVerify = ExtractTemplate(rawImageToVerify);
foreach (Image tempImage in card.FingerprintList)
{
FingerprintTemplate templateTemp;
FingerprintRawImage rawImageTemp = RawImageFromImage(tempImage);
templateTemp = ExtractTemplate(rawImageTemp);
int result;
fingerPrintCore.Verify(templateToVerify, templateTemp, out result);
if (result > maxScore)
{
maxScore = result;
}
}
// If success...
if (maxScore >= Settings.Default.GriauleMatcherMinScoreToSuccessVerify)
{
return(true);
}
// If failed...
return(false);
}
public FingerprintCard[] GetFingerprints()
{
FingerprintCard[] resultarray = CachedDB.getCacheDb(); //getCache
if (resultarray != null) return resultarray;
using (var newconnect = new DbConnection())
{
if (!newconnect.Connect()) throw new CannotConnectToDatabaseException();
string query = "select * from usertbl;";
MySqlDataReader reader = newconnect.SendQuery(query);
List<FingerprintCard> fingerprintlist = new List<FingerprintCard>();
while (reader.Read())
{
FingerprintCard newcard = new FingerprintCard(reader.GetValue(1).ToString(), reader.GetValue(2).ToString());
string guidstr = (string)reader.GetValue(0);
newcard.guid = new Guid(guidstr);
newcard.FingerprintList = GetFingerprintList(newcard.guid);
fingerprintlist.Add(newcard);
}
reader.Close();
resultarray = fingerprintlist.ToArray();
}
CachedDB.UpdateCache(resultarray);
return resultarray;
}
/// <summary>
/// Identification
/// </summary>
/// <param name="fingerprint">image of fingerprint to identificate </param>
/// <param name="cards"></param>
/// <returns></returns>
public FingerprintCard Identify(Image fingerprint, FingerprintCard[] cards)
{
int numberOfVerified = 0;
FingerprintCard identifiedCard = null;
#region paranoia section
if (fingerprint == null)
throw new ArgumentNullException("fingerprint");
if (cards == null)
throw new ArgumentNullException("cards");
#endregion
foreach (FingerprintCard card in cards)
{
#region paranoia section
if (card == null)
throw new ArgumentNullException("card");
if (card.FingerprintList == null)
throw new ArgumentNullException("card.FingerprintList");
if (card.FingerprintList.Count == 0)
throw new ArgumentOutOfRangeException("card.FingerprintList.Count");
#endregion
// If successfuly verified
if (Verify(fingerprint, card))
{
identifiedCard = card;
numberOfVerified++;
if (numberOfVerified > 1 || numberOfVerified < 0)
{
throw new Exception("Oh shi~! Here is some critical security error!" +
"For current image successfuly verified more than one fingercard!");
}
}
}
// Decide what to return
switch (numberOfVerified)
{
case 0: return null;
case 1: return identifiedCard;
default: throw new Exception("You shouldn't be here!");
}
}
/// <summary>
/// Verification
/// </summary>
/// <param name="fingerprint">image of fingerprint to verify</param>
/// <param name="card">card</param>
/// <returns>true if success, otherwise false</returns>
public bool Verify(Image fingerprint, FingerprintCard card)
{
// The best verification score reached
int maxScore = 0;
#region paranoia section
if (fingerprint == null)
throw new ArgumentNullException("fingerprint");
if (card == null)
throw new ArgumentNullException("card");
if (card.FingerprintList == null)
throw new ArgumentNullException("card.FingerprintList");
if (card.FingerprintList.Count == 0)
throw new ArgumentOutOfRangeException("card.FingerprintList.Count");
#endregion
FingerprintTemplate templateToVerify;
FingerprintRawImage rawImageToVerify = RawImageFromImage(fingerprint);
templateToVerify = ExtractTemplate(rawImageToVerify);
foreach (Image tempImage in card.FingerprintList)
{
FingerprintTemplate templateTemp;
FingerprintRawImage rawImageTemp = RawImageFromImage(tempImage);
templateTemp = ExtractTemplate(rawImageTemp);
int result;
fingerPrintCore.Verify(templateToVerify, templateTemp, out result);
if (result > maxScore)
maxScore = result;
}
// If success...
if (maxScore >= Settings.Default.GriauleMatcherMinScoreToSuccessVerify)
return true;
// If failed...
return false;
}
