private void executeFaceRecognition()
{
//array containing the 16 facial parameters resulting from the program
double[] facialParamters = doFaceRecognitionTask(mainPictureBox.Image);
//When the algorithm is unsuccesful, the facial parameters can be null
if (facialParamters != null)
{
//Gezicht inscannen
if (scanRadioButton.Checked == true)
{
//retrieve the TestSet-file location, if it doesn't exist create it and save the (new) path in the config-file
if ((ConfigManager.GetSetting("testSetPath") != null || ConfigManager.GetSetting("testSetPath") != ""))
{
TestSetFile tsf = TestSetFile.readFromFile();
string imgPath = saveImageToTestSetDir(mainPictureBox.Image, (nameTextBox.Text == "" ? "<unknown>" : nameTextBox.Text));
tsf.testSets.Add(new TestSet((nameTextBox.Text == "" ? "<unknown>" : nameTextBox.Text), facialParamters, imgPath));
tsf.writeToFile();
log(imgPath);
log("inscannen succesvol.");
}
}
//Gezicht vergelijken
else if (recognizeRadioButton.Checked == true || sequenceRadioButton.Checked == true)
{
//retrieve the TestSet-file location form the config-file, if it doesn't exist do nothing
if ((ConfigManager.GetSetting("testSetPath") != null || ConfigManager.GetSetting("testSetPath") != ""))
{
string bestMatchName = "";
double bestMatchDifference = 999;
string bestMatchPath = "";
//compare the facial parameters to each item in the TestSet-file
TestSetFile tsf = TestSetFile.readFromFile();
foreach (TestSet ts in tsf.testSets)
{
double difference = 0;
for (int i = 0; i < ts.Parameters.Length; i++)
{
difference += Math.Abs(ts.Parameters[i] - facialParamters[i]);
}
//the representation is currently compared by the average difference in values
difference /= facialParamters.Length;
if (difference < bestMatchDifference)
{
bestMatchDifference = difference;
bestMatchName = ts.Name;
bestMatchPath = ts.ImagePath;
}
}
if (tsf.testSets.Count < 1 || bestMatchPath == null)
{
//Test set is empty!
log("TestSet is leeg. Scan eerst een aantal gezichten in! ");
}
else
{
resultPictureBox.Image = new Bitmap(bestMatchPath);
log("Best match is: " + bestMatchName + " (gemiddeld verschil:" + bestMatchDifference + ")");
}
}
else
{
log("Testset-file bestaat niet of is niet gevonden.");
}
}
for (int i = 0; i < facialParamters.Length; i++)
{
//uncomment if you want to print the found facial parameters in the feedbackTextBox
//log("param#" + (i + 1) + ": " + facialParamters[i]);
}
}
else
{
log("Geen facial parameters beschikbaar.");
log("Match berekenen is mislukt.");
}
}