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Hello, I am currently trying to use multithreading in opencv. However, this code is not working.

#include <iostream>
#include <thread>

#include "opencv2/nonfree/features2d.hpp"

#include "FeatureMatching.h"
#include "FaceDetection.h"
#include "AugmentedReality.h"

Mat colorImg;
VideoCapture capture(0);

//Captures image from camera
void doCapture(VideoCapture capture)
{
    while (true)
    {
        capture.read(colorImg);
        imshow("HUD", colorImg);
        cvWaitKey(1);
    }
}

//Deicides what to do
void doDecision()
{
    while (true)
    {
        int k = waitKey(1);
        if (k == 49)
        {
            cout << "Detecting..." << endl;
            doMatch(colorImg);
        }
        else if (k == 50)
        {
            cout << "Detecting..." << endl;
            doDetect(colorImg);
        }
        else if (k == 51)
        {
            cout << "Displaying..." << endl;
            while (waitKey(1) != 51)
            {
                doAR(capture);
            }
        }
        else if (k == 27)
        {
            cout << "Stop";
        }
    }
}

//Main function
int main()
{
    thread t1(doCapture, capture);
    thread t2(doDecision);

    //cvNamedWindow("HUD", 0);
    //cvSetWindowProperty("HUD", CV_WND_PROP_FULLSCREEN, CV_WINDOW_FULLSCREEN);

    initMatch();
    initFace();
    initAR();

    t1.join();
    t2.join();
}

If anyone needs to see more of my code, I'll will do so. Can someone please tell what's the problem? Thanks in advance.

Hello, I am currently trying to use multithreading in opencv. However, this code is not working.

#include <iostream>
#include <thread>

#include "opencv2/nonfree/features2d.hpp"

#include "FeatureMatching.h"
#include "FaceDetection.h"
#include "AugmentedReality.h"

Mat colorImg;
VideoCapture capture(0);

//Captures image from camera
void doCapture(VideoCapture capture)
{
    while (true)
    {
        capture.read(colorImg);
        imshow("HUD", colorImg);
        cvWaitKey(1);
    }
}

//Deicides what to do
void doDecision()
{
    while (true)
    {
        int k = waitKey(1);
        if (k == 49)
        {
            cout << "Detecting..." << endl;
            doMatch(colorImg);
        }
        else if (k == 50)
        {
            cout << "Detecting..." << endl;
            doDetect(colorImg);
        }
        else if (k == 51)
        {
            cout << "Displaying..." << endl;
            while (waitKey(1) != 51)
            {
                doAR(capture);
            }
        }
        else if (k == 27)
        {
            cout << "Stop";
        }
    }
}

//Main function
int main()
{
    thread t1(doCapture, capture);
    thread t2(doDecision);

    //cvNamedWindow("HUD", 0);
    //cvSetWindowProperty("HUD", CV_WND_PROP_FULLSCREEN, CV_WINDOW_FULLSCREEN);

    initMatch();
    initFace();
    initAR();

    t1.join();
    t2.join();
}

If anyone needs to see more of my code, I'll will do so. Can someone please tell what's the problem? Thanks in advance.