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:[email protected]"));
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：
