double Fractais::press(Mat image, int op, int d)
{
double c = (double)d/2;
int pr = 0;
switch (op) {
case 1:
pr = pressMax(c, image.cols/d);
break;
default:
pr = pressMax(c, image.rows/d);
break;
}
double delta = 0;
for(int i=0; i<(int)image.rows/d; i++){
int op = 0;
for(int j=0; j<(int)image.cols/d; j++){
setRoi(Rect(j*d,i*d,d,d));
op = countNonZero(image(roi))/image(roi).total();
if(op){
delta += op*(c+(j*d))/pr;
}
}
}
return delta;
}
int Fractais::calculaN(Mat img, int d)
{
Mat aux;
threshold(img,aux,200.0,255.0,THRESH_BINARY);
//cvtColor(aux,aux,CV_BGR2GRAY);
int n = 0;
unsigned noZeros;
for(int i=0; i<d; i++){
for(int j=0; j<d; j++){
setRoi(Rect(j*aux.cols/d,i*aux.rows/d,(int)aux.cols/d,aux.rows/d));
noZeros = countNonZero(aux(roi));
if(noZeros < aux(roi).total()){
n++;
}
}
}
return n;
}
double Fractais::DiferentialBoxCounting(int r)
{
r = r*2;
double min, max;
int mr;
double lr = 0;
double pN = 0;
double pD = 0;
int q = (image.rows/r)*(image.cols/r);
Mat aux;
cvtColor(image,aux,CV_BGR2GRAY);
for(int i=0; i<aux.rows/r;i++){
for(int j=0; j<aux.cols/r;j++){
setRoi(Rect(j*r,i*r,r,r));
minMaxLoc(aux(roi),&min,&max);
mr = (int)(ceilf(max/r) - ceilf(min/r)) + 1;
pN += (double)pow(mr,2);
pD += (double)mr/q;
}
}
lr = (pN/q)/pow(pD,2);
return lr;
}
pure::pure(QWidget *parent) : QMainWindow(parent) {
//the meta types of the opencv datatypes have to be registered
//that one can use them in Qt's signal and slot system
qRegisterMetaType<cv::Rect>("cv::Rect");
qRegisterMetaType<cv::Mat>("cv::Mat");
ui.setupUi(this);
//setAttribute(Qt::WA_DeleteOnClose);
grabber = new Grabber();
sigProc = new SignalProcessor();
imgProc = new ImageProcessor(1);
recorder = new RecorderWidget();
//QThread is a thread handling class, that represents the thread
//itself. The code that is run inside the thread is determined
//by moving a QObject to the thread. once the thread is started
//the QObject behaves as it normally would but runs inside the
//thread.
grabberThread = new QThread(this);
imgProcThread = new QThread(this);
sigProcThread = new QThread(this);
recorderThread = new QThread(this);
grabber->moveToThread(sigProcThread);
imgProc->moveToThread(imgProcThread);
sigProc->moveToThread(grabberThread);
recorder->moveToThread(recorderThread);
grabberThread->start();
imgProcThread->start();
sigProcThread->start();
recorderThread->start();
//the connections of the singal and slot system. when you connect two QObjects
//using
// connect(sender, signal, receiver, slot)
//the slot function gets called everytime the sender emits the signal.
//signals can also carry data. datatypes unknown to Qt (here cv::Mat and cv::Rect)
//must be declared and registered first.
connect(grabber, SIGNAL(output(cv::Mat)), ui.display, SLOT(setFrame(cv::Mat)));
connect(grabber, SIGNAL(output(cv::Mat)), imgProc, SLOT(input(cv::Mat)));
connect(imgProc, SIGNAL(output(double, double, double)), sigProc, SLOT(input(double, double, double)));
connect(imgProc, SIGNAL(output(double, double, double)), recorder, SLOT(input(double, double, double)));
connect(imgProc, SIGNAL(output(double, double, double)), this, SLOT(onNewSamples(double, double, double)));
connect(imgProc, SIGNAL(newRoi(cv::Rect)), ui.display, SLOT(setRoi(cv::Rect)));
connect(sigProc, SIGNAL(output(double, double, double)), ui.meanPlot, SLOT(input(double, double, double)));
connect(sigProc, SIGNAL(output(double, double, double)), ui.fftWidget, SLOT(addSamples(double, double, double)));
connect(ui.fftWidget, SIGNAL(newHrEstimation(QString)), ui.labelHr, SLOT(setText(const QString &)));
if(grabber->init(15,0) == 0) {
//showFullScreen();
grabber->start();
showMaximized();
}
else {
QMessageBox msgBox;
msgBox.setText("No camera found, ending now.");
msgBox.exec();
close();
}
}
