bool StudentLocalization::stepFindChinContours(const IntensityImage &image, FeatureMap &features) const {
//Get the position of the mouth
Feature Mouth = features.getFeature(Feature::FEATURE_MOUTH_TOP);
Point2D<double> MouthPosition;
//Initialise the chin feature
std::vector<Point2D<double>> ChinPositions;
Feature Chin = Feature(Feature::FEATURE_CHIN);
Feature ChinContour = Feature(Feature::FEATURE_CHIN_CONTOUR);
int y = 0;
int m = 0;
//Draw a half circle starting from the center of the mouth
for (int j = HALF_CIRCLE; j > 0; j -= DEGREE_STEP){
//reset the position of the mouth
MouthPosition.set(Mouth.getX(), Mouth.getY());
MouthPosition.set(drawLine(j, START_POSITION, MouthPosition));
m = m + 1;
for (int i = 0; i < MEASURE_RANGE; i++){
MouthPosition.set(drawLine(j, MEASURE_STEP, MouthPosition));
Intensity pixel = image.getPixel(MouthPosition.getX(), MouthPosition.getY());
// If the intensity of the current pixel is lower than 2 (which means it is black)
if (pixel < 2){
// If the current angle is within the bounds of the half circle
if (j < RIGHT_HALF && j > LEFT_HALF){
ChinContour.addPoint(drawLine(j, 2, MouthPosition));
}
else{
//Draw a point on the mouth position, to indicate the detection failed.
ChinContour.addPoint(MouthPosition);
}
break;
}
}
}
features.putFeature(ChinContour);
return true;
}
bool StudentLocalization::stepFindChinContours(const IntensityImage &image, FeatureMap &features) const {
// Maak een basetimer object om de tijd bij te houden dat de implementatie nodig heeft.
BaseTimer basetimer;
// Start de basetimer.
basetimer.start();
// test getal
int startStep = 15;
bool first = true;
// Sla het middenpunt van de mond op.
Point2D<double> MouthCenterPoint = features.getFeature(Feature::FEATURE_MOUTH_CENTER).getPoints()[0];
// Sla het kin punt op.
Point2D<double> ChinPoint = features.getFeature(Feature::FEATURE_CHIN).getPoints()[0];
int range = MouthCenterPoint.getY() - ChinPoint.getY();
// Object om kincountoer punten in op te slaan.
Feature output = Feature(Feature::FEATURE_CHIN_CONTOUR);
int degrees;
int steps = 15;
int lastdif;
double correction = -1;
int lastSteps = 0;
int vorigeX = 0;
// Bereken 20 punten van de kin.
for (int i = 0; i < 19; i++)
{
bool ireg = false;
if (i>9)
{
correction = 1;
}
else if (i < 9)
{
correction =0;
}
// Sla middelpunt mond x op.
int checkX = MouthCenterPoint.getX();
// Sla middelpunt mond y op.
int checkY = MouthCenterPoint.getY();
double gradenInRad = (-90+(i * 10)) *(PI/180);
steps = startStep;
Point2D<double> gevondenPunt;
// Middelste punt van de kin is als het goed is bekend. Dit is punt nummer 9 dus zal worden overgeslagen.
if (i != 9)
{
while (true)
{
if (!first&&steps > startStep + 10)
{
lastdif / i;
ireg = true;
gevondenPunt.set(MouthCenterPoint.getX() + ((lastSteps + correction)* std::sin(gradenInRad)), MouthCenterPoint.getY() + ((lastSteps + correction) * std::cos(gradenInRad)));
steps = lastSteps + correction;
break;
}
checkX = MouthCenterPoint.getX()+ (steps * std::sin(gradenInRad));
checkY = MouthCenterPoint.getY()+(steps * std::cos(gradenInRad));
Intensity pixel = image.getPixel(std::round(checkX), std::round(checkY));
if (int(pixel) == 0)
{
if (checkX - vorigeX <2)
{
lastdif / i;
ireg = true;
gevondenPunt.set(MouthCenterPoint.getX() + ((lastSteps + correction)* std::sin(gradenInRad)), MouthCenterPoint.getY() + ((lastSteps + correction) * std::cos(gradenInRad)));
steps = lastSteps + correction;
break;
}
ireg=false;
gevondenPunt.set(checkX, checkY); break;
}
steps++;
}
vorigeX = checkX;
std::cout << gevondenPunt <<"\n";
startStep = steps - 5;
output.addPoint(Point2D<double>(gevondenPunt.x,gevondenPunt.y));
first=false;
if (ireg)
{
startStep = steps-5;
lastSteps = steps;
}
else
{
lastdif = lastSteps - steps;
lastSteps = steps;
}
}
else
{
output.addPoint(ChinPoint);
}
}
features.putFeature(output);
basetimer.stop();
std::ofstream myfile;
myfile.open("tijd.txt", std::ofstream::ate);
myfile << "Chincontours convert tijd in s: " << basetimer.elapsedSeconds() << " tijd ms:" << basetimer.elapsedMilliSeconds() << " tijd us" << basetimer.elapsedMicroSeconds();
myfile.close();
return true;
}
