testccc/autoflash.cpp

#include "autoflash.h"




autoFlash::autoFlash(QObject *parent)
    : QObject{parent}
{
    thread = new  QThread();
    thread->start();
    this->moveToThread(thread);

    b_sv = false; //
    //    lastlight;
    count = 0;

    //    double threshold;

    threshold = 6000;
}

void autoFlash::slotprocimg(cv::Mat img)
{
    if(count>0){
        b_sv = false;
        count -=1;
        return;
    }

    double avg = 0;
    for(int i = 0;i<img.rows;i+=10){
        for(int j = 0;j<img.cols;j+=10){
            avg  += img.at<ushort>(i,j);
        }
    }
    avg = avg/int(img.rows/10)/int(img.cols/10)/4;
    if(b_sv){
        lastlight  = lastlight/20*19 +avg/20;
    }
    else{
        lastlight  = avg;
        b_sv = true;
    }
    if(lastlight-threshold<-1000){
        emit signalSetIT(-1);
        count = 5;
    }
    if(lastlight-threshold>1000){
        emit signalSetIT(1);
        count = 5;
    }


}

void autoFlash::slotsetshre(double thre)
{
    this->threshold = thre;
}