基于Qt的图像采集系统

硬件

Point Gray Camera

型号：FL3-U3-13S2C-CS

参数

Sony IMX035 CMOS, 1/3", 3.63 µm
Rolling Shutter
1328x1048 at 120 FPS

USB3.0

系统及环境

Windows 7 64bit

Qt 5.1

驱动：FlyCapture v2.5 Release 4 - Windows 64bit

硬件连接

将相机直接接到电脑的USB3.0接口上就可以了。

程序功能

调用摄像头拍照，并在窗口中显示结果拍照结果。

开发的过程中主要是参考官方的文档，在sdk安装的文件夹里就有。

代码清单

代码结构

很简单，就一个类。

首先要在.pro文件中包含头文件和库

INCLUDEPATH += "C:/Program Files/Point Grey Research/FlyCapture2/include"LIBS += "C:\Program Files\Point Grey Research\FlyCapture2\lib64\FlyCapture2.lib"

main.cpp

#include "mainwindow.h"#include <QApplication>int main(int argc, char *argv[]){    QApplication a(argc, argv);    MainWindow w;     w.show();    return a.exec();}

初始化一个MainWindow，然后显示，没什么好说的。

mainwindows.h

#ifndef MAINWINDOW_H#define MAINWINDOW_H#include <QMainWindow>#include <FlyCapture2.h>#include <iostream>#include <QLabel>#include <QAction>#include <QStatusBar>#include <QMessageBox>#include <QMenu>#include <QMenuBar>using namespace std;using namespace FlyCapture2;class MainWindow : public QMainWindow{    Q_OBJECT    public:    MainWindow(QWidget *parent = 0);    void printCameraInfo();    ~MainWindow();private:    QLabel *imageLabel;    QMenu *operationMenu;    QMenu *aboutMenu;    QMenu *cameraMenu;    QAction *startAction;    QAction *stopAction;    QAction *aboutAction;    QAction *cameraInfoAction;    QLabel *msgLabel;    QLabel *about;    void createActions();    void createMenus();    void printError(Error e);    void getCameraInfo();     PGRGuid guid;     Error error;     Camera cam;     CameraInfo camInfo;public slots:    void slotAbout();    int slotStart();    void slotStop();    void slotShowCameraInfo();};#endif // MAINWINDOW_H

首先要包含 FlyCapture2.h 这个头文件，然后定义好窗体的menu，action等等，还有操作相机的几个相关的私有成员。

main.cpp

#include "mainwindow.h"MainWindow::MainWindow(QWidget *parent)    : QMainWindow(parent){    this->setGeometry(100,100,1000,768);    this->setWindowTitle(tr("FlyCapture View"));    //状态栏设定    msgLabel=new QLabel;    msgLabel->setMinimumSize(msgLabel->sizeHint());    this->statusBar()->addWidget(msgLabel);    this->createActions();    this->createMenus();    imageLabel = new QLabel;    imageLabel->setBackgroundRole(QPalette::Base);    imageLabel->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Ignored);    imageLabel->setScaledContents(true);    QPixmap image(":/images/images/monster.png");    imageLabel->setPixmap(image);    this->setCentralWidget(imageLabel);//Initialization of camera    BusManager busMgr;    error = busMgr.GetCameraFromIndex(0, &guid);    if (error != PGRERROR_OK)    {        printError( error );        //return -1;    }    const int k_numImages = 10;    // Connect to a camera    error = cam.Connect(&guid);    if (error != PGRERROR_OK)    {        printError( error );       // return -1;    }    // Get the camera information    error = cam.GetCameraInfo(&camInfo);    if (error != PGRERROR_OK)    {        printError( error );        //return -1;    }}MainWindow::~MainWindow(){}void MainWindow::createActions(){    this->aboutAction = new QAction(tr("&About"), this);    this->aboutAction->setStatusTip(tr("About author."));    this->connect(aboutAction, SIGNAL(triggered()), this, SLOT(slotAbout()));    this->startAction = new QAction(tr("&Start"), this);    this->startAction->setStatusTip(tr("Start capture."));    this->connect(startAction, SIGNAL(triggered()), this, SLOT(slotStart()));    this->stopAction = new QAction(tr("&Stop"), this);    this->stopAction->setStatusTip(tr("Stop capture."));    this->connect(stopAction, SIGNAL(triggered()), this, SLOT(slotStop()));    this->cameraInfoAction = new QAction(tr("&CameraInfo"), this);    this->cameraInfoAction->setStatusTip(tr("Camera Information."));    this->connect(cameraInfoAction, SIGNAL(triggered()), this, SLOT(slotShowCameraInfo()));}void MainWindow::createMenus(){    this->operationMenu = this->menuBar()->addMenu(tr("&Operation"));    this->operationMenu->addAction(startAction);    this->operationMenu->addAction(stopAction);    this->aboutMenu = this->menuBar()->addMenu(tr("&About"));    this->aboutMenu->addAction(aboutAction);    this->cameraMenu = this->menuBar()->addMenu(tr("&Camera"));    this->cameraMenu->addAction(cameraInfoAction);}void MainWindow::slotAbout(){    QMessageBox msg(this);    msg.setWindowTitle("About");    msg.setText(tr("Version:1.0  Author:[e-mail]"));    msg.exec();}int MainWindow::slotStart(){    // Start capturing images    error = cam.StartCapture();    if (error != PGRERROR_OK)    {        printError( error );        return -1;    }    Image rawImage;    error = cam.RetrieveBuffer( &rawImage );    if (error != PGRERROR_OK)    {        printError( error );        //   continue;    }    // Create a converted image    Image convertedImage;    // Convert the raw image    error = rawImage.Convert( PIXEL_FORMAT_RGB, &convertedImage );    if (error != PGRERROR_OK)    {        printError( error );        return -1;    }    // Save the image. If a file format is not passed in, then the file    // extension is parsed to attempt to determine the file format.    error = convertedImage.Save( "Test.jpg");    if (error != PGRERROR_OK)    {        printError( error );        return -1;    }    //   }    // Stop capturing images    error = cam.StopCapture();    if (error != PGRERROR_OK)    {        printError( error );        return -1;    }    // Disconnect the camera    error = cam.Disconnect();    if (error != PGRERROR_OK)    {        printError( error );        return -1;    }    QPixmap image("Test.jpg");    imageLabel->setPixmap(image);    cout<<"Captured!"<<endl;    return 0;}void MainWindow::slotStop(){    cout<<"Stop!"<<endl;}void MainWindow::slotShowCameraInfo(){    QMessageBox msg(this);    msg.setWindowTitle("Camera Informations");    msg.setText(QString("Serial number - %1\nCamera model - %2\nCamera vendor - %3\nSensor - %4\nResolution - %5\nFirmware version - %6\nFirmware build time - %7\n\n")                .arg(camInfo.serialNumber).arg(camInfo.modelName).arg(camInfo.vendorName).arg(camInfo.sensorInfo).arg(camInfo.sensorResolution)                .arg(camInfo.firmwareVersion).arg(camInfo.firmwareBuildTime));    msg.exec();}void MainWindow::printError(Error e){    e.PrintErrorTrace();}

主要是函数，槽，界面布局的实现。

最终效果：

源码下载