基于Qt的yolov5工程

最新推荐文章于 2025-03-06 19:30:03 发布

AphilGuo

最新推荐文章于 2025-03-06 19:30:03 发布

阅读量2.1k

点赞数

文章标签： qt ui 开发语言

本文链接：https://blog.youkuaiyun.com/qq_44798484/article/details/125466947

版权

该博客介绍了一个基于Qt框架的Yolov5工程实现，包括main.cpp、mainwindow.cpp、yolov5.h和yolov5.cpp等关键文件的详细内容，展示了如何在Qt环境中集成和运行Yolov5进行目标检测。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

Yolov5Qt工程
main.cpp

#include "mainwindow.h"

#include <QApplication>

int main(int argc, char *argv[])
{
   
    QApplication a(argc, argv);
    MainWindow w;
    w.show();
    return a.exec();
}

mainwindow.cpp

#include "mainwindow.h"
#include "ui_mainwindow.h"



MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
    , ui(new Ui::MainWindow)
{
   
    ui->setupUi(this);
    setWindowTitle(QStringLiteral("YoloV5目标检测软件"));

    timer = new QTimer(this);
    timer->setInterval(33);
    connect(timer,SIGNAL(timeout()),this,SLOT(readFrame()));
    ui->startdetect->setEnabled(false);
    ui->stopdetect->setEnabled(false);
    Init();
}

MainWindow::~MainWindow()
{
   

    capture->release();
    delete capture;
    delete [] yolo_nets;
    delete yolov5;
    delete ui;
}

void MainWindow::Init()
{
   
    capture = new cv::VideoCapture();
    yolo_nets = new NetConfig[4]{
   
                                {
   0.5, 0.5, 0.5, "yolov5s"},
                                {
   0.6, 0.6, 0.6, "yolov5m"},
                                {
   0.65, 0.65, 0.65, "yolov5l"},
                                {
   0.75, 0.75, 0.75, "yolov5x"}
                            };
    conf = yolo_nets[0];
    yolov5 = new YOLOV5();
    yolov5->Initialization(conf);
    ui->textEditlog->append(QStringLiteral("默认模型类别：yolov5s args: %1 %2 %3")
                            .arg(conf.nmsThreshold)
                            .arg(conf.objThreshold)
                            .arg(conf.confThreshold));
}

void MainWindow::readFrame()
{
   
    cv::Mat frame;
    capture->read(frame);
    if (frame.empty()) return;

    auto start = std::chrono::steady_clock::now();
    yolov5->detect(frame);
    auto end = std::chrono::steady_clock::now();
    std::chrono::duration<double, std::milli> elapsed = end - start;
    ui->textEditlog->append(QString("cost_time: %1 ms").arg(elapsed.count()));
    cv::cvtColor(frame, frame, cv::COLOR_BGR2RGB);
    QImage rawImage = QImage((uchar*)(frame.data),frame.cols,frame.rows,frame.step,QImage::Format_RGB888);
    ui->label->setPixmap(QPixmap::fromImage(rawImage));
}

void MainWindow::on_openfile_clicked()
{
   
    QString filename = QFileDialog::getOpenFileName(this,QStringLiteral("打开文件"),".","*.mp4 *.avi;;*.png *.jpg *.jpeg *.bmp");
    if(!QFile::exists(filename)){
   
        return;
    }
    ui->statusbar->showMessage(filename);

    QMimeDatabase db;
    QMimeType mime = db.mimeTypeForFile(filename);
    if (mime.name().startsWith("image/")) {
   
        cv::Mat src = cv::imread(filename.toLatin1().data());
        if(src.empty()){
   
            ui->statusbar->showMessage("图像不存在！");
            return;
        }
        cv::Mat temp;
        if(src.channels()==4)
            cv::cvtColor(src,temp,cv::COLOR_BGRA2RGB);
        else if

最低0.47元/天解锁文章