Qt开发Mindvision相机简单功能

#include <QFileDialog> #include <QGraphicsPixmapItem> #include "mainwindow.h" #include "ui_mainwindow.h" #include "capturethread.h" #include <stdio.h> #ifdef _WIN64 #pragma comment(lib,"MVCAMSDK_X64.lib") #else #pragma comment(lib,"MVCAMSDK.lib") #endif // _WIN64 //SDK int g_hCamera = -1; //设备句柄 unsigned char * g_pRawBuffer = NULL; //raw数据 unsigned char * g_pRgbBuffer = NULL; //处理后数据缓存区 tSdkFrameHead g_tFrameHead; //图像帧头信息 tSdkCameraCapbility g_tCapability; //设备描述信息 int g_SaveParameter_num = 0; //保存参数组 int g_SaveImage_type = 0; //保存图像格式 Width_Height g_W_H_INFO; //显示画板到大小和图像大小 BYTE *g_readBuf = NULL; //画板显示数据区 int g_read_fps = 0; //统计读取帧率 int g_disply_fps = 0; //统计显示帧率 MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWindow), m_scene(0), m_image_item(0) { if (init_SDK() == -1){ status = 0; } ui->setupUi(this); m_scene = new QGraphicsScene(this); ui->graphicsView->setScene(m_scene); m_timer = new QTimer(this); //connect(m_timer, SIGNAL(timeout()), this, SLOT(camera_statues())); m_timer->start(1000); m_thread = new CaptureThread(this); //qDebug() << m_thread;//检测是否创建线程 connect(m_thread, SIGNAL(captured(QImage)), this, SLOT(Image_process(QImage)), Qt::BlockingQueuedConnection); //m_camera_statuesFps = new QLabel(this); //m_camera_statuesFps->setAlignment(Qt::AlignHCenter); //ui->statusBar->addWidget(m_camera_statuesFps); //GUI_init_Resolution(g_hCamera, &g_tCapability); //GUI_init_speed(g_hCamera, &g_tCapability); //GUI_init_parameter(g_hCamera, &g_tCapability); init_Camera(); set_Resolution(); //m_thread->start(); //m_thread->stream(); //status = 1; } MainWindow::~MainWindow() { delete ui; } void MainWindow::changeEvent(QEvent *e) { QMainWindow::changeEvent(e); switch (e->type()) { case QEvent::LanguageChange: ui->retranslateUi(this); break; default: break; } } void MainWindow::closeEvent(QCloseEvent *e) { m_thread->stop(); while (!m_thread->wait(100)) { QCoreApplication::processEvents(); } if (g_readBuf != NULL){ free(g_readBuf); g_readBuf = NULL; } if (g_pRgbBuffer != NULL){ free(g_pRgbBuffer); g_pRgbBuffer = NULL; } if (g_hCamera > 0){ //相机反初始化。释放资源。 CameraUnInit(g_hCamera); g_hCamera = -1; } QMainWindow::closeEvent(e); } void MainWindow::Image_process(QImage img) { if (m_thread->quit) { return; } if (m_image_item) { m_scene->removeItem(m_image_item); delete m_image_item; m_image_item = 0; } m_image_item = m_scene->addPixmap(QPixmap::fromImage(img)); m_scene->setSceneRect(0, 0, img.width(), img.height()); //m_scene->setSceneRect(0, 0, 800, 600); g_disply_fps++; } int MainWindow::init_SDK() { int iCameraCounts = 4; int iStatus = -1; tSdkCameraDevInfo tCameraEnumList[4]; //sdk初始化 0 English 1中文 CameraSdkInit(1); //枚举设备，并建立设备列表 CameraEnumerateDevice(tCameraEnumList, &iCameraCounts); //没有连接设备 if (iCameraCounts == 0){ return -1; } //相机初始化。初始化成功后，才能调用任何其他相机相关的操作接口 iStatus = CameraInit(&tCameraEnumList[0], -1, -1, &g_hCamera); //初始化失败 if (iStatus != CAMERA_STATUS_SUCCESS){ return -1; } //获得相机的特性描述结构体。该结构体中包含了相机可设置的各种参数的范围信息。决定了相关函数的参数 CameraGetCapability(g_hCamera, &g_tCapability); g_pRgbBuffer = (unsigned char*)malloc(g_tCapability.sResolutionRange.iHeightMax*g_tCapability.sResolutionRange.iWidthMax * 3); g_readBuf = (unsigned char*)malloc(g_tCapability.sResolutionRange.iHeightMax*g_tCapability.sResolutionRange.iWidthMax * 3); /*让SDK进入工作模式，开始接收来自相机发送的图像 数据。如果当前相机是触发模式，则需要接收到 触发帧以后才会更新图像。 */ CameraPlay(g_hCamera); /* 设置图像处理的输出格式，彩色黑白都支持RGB24位 */ if (g_tCapability.sIspCapacity.bMonoSensor){ CameraSetIspOutFormat(g_hCamera, CAMERA_MEDIA_TYPE_MONO8); } else{ CameraSetIspOutFormat(g_hCamera, CAMERA_MEDIA_TYPE_RGB8); } return 0; } void MainWindow::set_Resolution() { tSdkImageResolution *pImageSizeDesc = g_tCapability.pImageSizeDesc;// 预设分辨率选择 //pImageSizeDesc->iIndex = 0xff; //pImageSizeDesc->iHeightFOV = 1200; //pImageSizeDesc->iWidthFOV = 1600; //g_W_H_INFO.sensor_width = pImageSizeDesc->iWidth = 1600; //g_W_H_INFO.sensor_height = pImageSizeDesc->iHeight = 1200; //m_thread->pause(); //CameraSetImageResolution(g_hCamera, pImageSizeDesc); //m_thread->stream(); int index = 9; //pImageSizeDesc[index].iHeightZoomSw = 1; //pImageSizeDesc[index].iWidthZoomSw = 1; g_W_H_INFO.sensor_width = pImageSizeDesc[index].iWidth; g_W_H_INFO.sensor_height = pImageSizeDesc[index].iHeight; g_W_H_INFO.buffer_size = g_W_H_INFO.sensor_width*g_W_H_INFO.sensor_height; pImageSizeDesc[index].iWidthZoomSw=551; pImageSizeDesc[index].iHeightZoomSw=401; if (pImageSizeDesc[index].iWidthZoomSw){ g_W_H_INFO.sensor_width = pImageSizeDesc[index].iWidthZoomSw; g_W_H_INFO.sensor_height = pImageSizeDesc[index].iHeightZoomSw; } if (g_W_H_INFO.sensor_width < g_W_H_INFO.display_width){ g_W_H_INFO.xOffsetFOV = (g_W_H_INFO.display_width - g_W_H_INFO.sensor_width) / 2; } else{ g_W_H_INFO.xOffsetFOV = 0; } if (g_W_H_INFO.sensor_height < g_W_H_INFO.display_height){ g_W_H_INFO.yOffsetFOV = (g_W_H_INFO.display_height - g_W_H_INFO.sensor_height) / 2; } else{ g_W_H_INFO.yOffsetFOV = 0; } m_thread->pause(); CameraSetImageResolution(g_hCamera, &(pImageSizeDesc[index])); m_thread->stream(); } void MainWindow::set_exposuretime() { double pfExposureTime; int pusAnalogGain; double m_fExpLineTime = 0; //设置相机的曝光时间 CameraGetExposureLineTime(g_hCamera, &m_fExpLineTime); pfExposureTime = 60; CameraSetExposureTime(g_hCamera,91395); //设置图像信号的模拟增益值。 pusAnalogGain = 2; CameraSetAnalogGain(g_hCamera, pusAnalogGain); } void MainWindow::init_Camera() { CameraSetTriggerMode(g_hCamera, 0);//设置连续采集模式 set_exposuretime();//设置曝光时间 CameraSetGamma(g_hCamera, 100);//设置GAMMA值 //CameraSetSaturation(g_hCamera, 100); CameraSetContrast(g_hCamera, 100);//设置对比度 CameraSetSharpness(g_hCamera, 0);//锐化 CameraSetFrameSpeed(g_hCamera, 1);//设置中速速度模式 } //通过打开线程打开相机 void MainWindow::on_pushButton_clicked() { m_thread->start(); m_thread->stream(); status = 1; } //捕获图片并保存 void MainWindow::on_pushButton_2_clicked() { tSdkFrameHead tFrameHead; BYTE *pbyBuffer; BYTE *pbImgBuffer; char filename[512] = { 0 }; QString path = {".\\test\\"}; char* dir; QByteArray tmp = path.toLatin1(); dir = tmp.data(); sprintf(filename, "%stest", dir); if (CameraSnapToBuffer(g_hCamera, &tFrameHead, &pbyBuffer, 1000) == CAMERA_STATUS_SUCCESS) { g_SaveImage_type = 3; switch (g_SaveImage_type){ case 1: break; case 2: break; case 3: pbImgBuffer = (unsigned char*)malloc(g_tCapability.sResolutionRange.iHeightMax*g_tCapability.sResolutionRange.iWidthMax * 3); /* 将获得的相机原始输出图像数据进行处理，叠加饱和度、 颜色增益和校正、降噪等处理效果，最后得到RGB888 格式的图像数据。 */ CameraImageProcess(g_hCamera, pbyBuffer, pbImgBuffer, &tFrameHead); //将图像缓冲区的数据保存成图片文件。 CameraSaveImage(g_hCamera, filename, pbImgBuffer, &tFrameHead, FILE_BMP, 100); //释放由CameraGetImageBuffer获得的缓冲区。