1、采图UI显示

2、硬件连接和IP配置

2.1 外触发硬件接线

根据相机接线图，连接相机的电源的触发信号输入；

2.2 IP配置

Gige网口相机需要电脑网卡和相机在同一ip段内，支持动态、静态等方式配置IP，打开Pylon IP Configurator来匹配IP，如下

3、代码实现

基本采图功能Balser都有对应的Demo进行参考，这里只截取相机采图和部分参数设置功能演示。

balser_gigeCamera.h

#ifndef BALSER_GIGECAMERA_H
#define BALSER_GIGECAMERA_H
/***************************
* @projectName   camera_test
* @brief         Basler相机图像采集及参数设置功能；
* @author        Alaric
* @date          2018-11-04
**************************/#include <QImage>
#include "balser_gigecamera_global.h"
#include <QObject>#include <pylon/PylonIncludes.h>
#include <pylon/BaslerUniversalInstantCamera.h>
#include <pylon/_BaslerUniversalCameraParams.h>
#include <QMutex>using namespace std;
using namespace Pylon;
using namespace GenApi;
using namespace Basler_UniversalCameraParams;class BALSER_GIGECAMERASHARED_EXPORT Balser_GigeCamera : public QObject, public CImageEventHandler
{Q_OBJECT
public:Balser_GigeCamera(QObject *parent = nullptr);~Balser_GigeCamera();enum BaslerCamera_Type{Type_Basler_Freerun, //设置相机的内触发Type_Basler_Line1, //设置相机的外触发Type_Basler_ExposureTimeAbs, //设置相机的曝光时间Type_Basler_GainRaw, //设置相机的增益Type_Basler_AcquisitionFrameRateAbs, //设置相机的频率Type_Basler_Width, //图片的宽度Type_Basler_Height, //图片的高度Type_Basler_LineSource, //灯的触发信号};void initCamera();                   //初始化相机void OpenCamera();                   //打开相机void CloseCamera();                   //关闭相机void deleteAll();                    //删除相机int getExposureTime();                //获得曝光时间void setExposureTime(int time);       //设置曝光时间int getGain();                        //获得增益void setGain(int value);              //设置增益void setFrameRate(int value);         //设置帧率int getFrameRate();                   //获得帧率void OneKeyAutoExTime();              //一键自动曝光void SetCamera(Balser_GigeCamera::BaslerCamera_Type index, int tmpValue = 0); // 设置各种参数int GetCamera(Balser_GigeCamera::BaslerCamera_Type index); // 获取各种参数void AutoExposureOnce(CBaslerUniversalInstantCamera& camera);      //自动曝光void StartAcquire();  //开始采集void StopAcquire();   //结束采集void StartSnap();     //抓图bool GrabOnLine_Signal;     //实时采图信号signals:void canShowImg(QImage img);         //发送图像数据public slots:void WorkTypeSignal(int work_type);         //接收图像处理信号，0为Once,1为Online;
private:CBaslerUniversalInstantCamera m_basler;CGrabResultPtr m_ptrGrabResult;CImageFormatConverter m_formatConverter;//Basler 图片格式转换类CPylonImage pylonImage; //Basler 图像格式QMutex m_mutexLock;int TestImg_WorkType = -1;          //图像处理方式，默认-1为不处理，0为Once，1为Online；QImage CopyImgToQImage(CGrabResultPtr ptrGrabResult);protected:virtual void OnImageGrabbed(CInstantCamera &camera, const CGrabResultPtr &grabResult);
};#endif // BALSER_GIGECAMERA_H

这里balser采集到的BYTE格式的图像数据按照通道数转换成QImage格式，最后发送给UI线程进行显示。

balser_gigecamera.cpp

#include "balser_gigecamera.h"
#include <QDebug>Balser_GigeCamera::Balser_GigeCamera(QObject *parent) : QObject(parent)
{}Balser_GigeCamera::~Balser_GigeCamera()
{}void Balser_GigeCamera::initCamera()
{PylonInitialize();m_basler.RegisterImageEventHandler(this, RegistrationMode_Append, Cleanup_Delete);m_basler.Attach(CTlFactory::GetInstance().CreateFirstDevice(),Cleanup_Delete);qDebug()<<"Using device " << m_basler.GetDeviceInfo().GetModelName()<<endl;m_basler.Open();if (!m_basler.IsOpen() || m_basler.IsGrabbing()){qDebug()<<"camera open failed"<<endl;return;}
}void Balser_GigeCamera::CloseCamera()
{if(m_basler.IsOpen()) {m_basler.DetachDevice();m_basler.Close();m_basler.DestroyDevice();m_ptrGrabResult.Release();}
}void Balser_GigeCamera::deleteAll()
{//停止采集if(GrabOnLine_Signal) {StopAcquire();}//关闭摄像头try{CloseCamera();m_basler.DeregisterImageEventHandler(this);//关闭库qDebug() << "SBaslerCameraControl deleteAll: PylonTerminate" ;PylonTerminate();}catch (const Pylon::GenericException& e){qDebug() << e.what();}
}int Balser_GigeCamera::getExposureTime()
{return GetCamera(Type_Basler_ExposureTimeAbs);
}void Balser_GigeCamera::setExposureTime(int time)
{SetCamera(Type_Basler_ExposureTimeAbs, time);
}void Balser_GigeCamera::setGain(int value)
{SetCamera(Type_Basler_GainRaw, value);
}int Balser_GigeCamera::getGain()
{return GetCamera(Type_Basler_GainRaw);
}int Balser_GigeCamera::getFrameRate()
{return GetCamera(Type_Basler_AcquisitionFrameRateAbs);
}void Balser_GigeCamera::setFrameRate(int value)
{SetCamera(Type_Basler_AcquisitionFrameRateAbs, value);
}void Balser_GigeCamera::OneKeyAutoExTime()
{AutoExposureOnce(m_basler);
}void Balser_GigeCamera::SetCamera(Balser_GigeCamera::BaslerCamera_Type index, int tmpValue)
{INodeMap &cameraNodeMap = m_basler.GetNodeMap();switch (index) {case Type_Basler_Freerun: {CEnumerationPtr  ptrTriggerSel = cameraNodeMap.GetNode ("TriggerSelector");ptrTriggerSel->FromString("FrameStart");CEnumerationPtr  ptrTrigger  = cameraNodeMap.GetNode ("TriggerMode");
#ifdef Real_FreerunptrTrigger->SetIntValue(0);
#else //SoftwareptrTrigger->SetIntValue(1);CEnumerationPtr  ptrTriggerSource = cameraNodeMap.GetNode ("TriggerSource");ptrTriggerSource->FromString("Software");
#endif} break;case Type_Basler_Line1: {CEnumerationPtr  ptrTriggerSel = cameraNodeMap.GetNode ("TriggerSelector");ptrTriggerSel->FromString("FrameStart");CEnumerationPtr  ptrTrigger  = cameraNodeMap.GetNode ("TriggerMode");ptrTrigger->SetIntValue(1);CEnumerationPtr  ptrTriggerSource = cameraNodeMap.GetNode ("TriggerSource");ptrTriggerSource->FromString("Line1");} break;case Type_Basler_ExposureTimeAbs: {const CFloatPtr exposureTime = cameraNodeMap.GetNode("ExposureTimeAbs");exposureTime->SetValue(tmpValue);} break;case Type_Basler_GainRaw: {const CIntegerPtr cameraGen = cameraNodeMap.GetNode("GainRaw");cameraGen->SetValue(tmpValue);} break;case Type_Basler_AcquisitionFrameRateAbs: {const CBooleanPtr frameRate = cameraNodeMap.GetNode("AcquisitionFrameRateEnable");frameRate->SetValue(TRUE);const CFloatPtr frameRateABS = cameraNodeMap.GetNode("AcquisitionFrameRateAbs");frameRateABS->SetValue(tmpValue);} break;case Type_Basler_Width: {const CIntegerPtr widthPic = cameraNodeMap.GetNode("Width");widthPic->SetValue(tmpValue);} break;case Type_Basler_Height: {const CIntegerPtr heightPic = cameraNodeMap.GetNode("Height");heightPic->SetValue(tmpValue);} break;case Type_Basler_LineSource: {CEnumerationPtr  ptrLineSource = cameraNodeMap.GetNode ("LineSource");ptrLineSource->SetIntValue(2);} break;default:break;}
}int Balser_GigeCamera::GetCamera(Balser_GigeCamera::BaslerCamera_Type index)
{INodeMap &cameraNodeMap = m_basler.GetNodeMap();switch (index) {case Type_Basler_ExposureTimeAbs: {const CFloatPtr exposureTime = cameraNodeMap.GetNode("ExposureTimeAbs");return exposureTime->GetValue();} break;case Type_Basler_GainRaw: {const CIntegerPtr cameraGen = cameraNodeMap.GetNode("GainRaw");return cameraGen->GetValue();} break;case Type_Basler_AcquisitionFrameRateAbs: {const CBooleanPtr frameRate = cameraNodeMap.GetNode("AcquisitionFrameRateEnable");frameRate->SetValue(TRUE);const CFloatPtr frameRateABS = cameraNodeMap.GetNode("AcquisitionFrameRateAbs");return frameRateABS->GetValue();} break;case Type_Basler_Width: {const CIntegerPtr widthPic = cameraNodeMap.GetNode("Width");return widthPic->GetValue();} break;case Type_Basler_Height: {const CIntegerPtr heightPic = cameraNodeMap.GetNode("Height");return heightPic->GetValue();} break;default:return -1;break;}
}void Balser_GigeCamera::OnImageGrabbed(CInstantCamera &camera, const CGrabResultPtr &grabResult)
{m_mutexLock.lock();qDebug() <<"Capturest"<<endl;if (grabResult->GrabSucceeded()){m_ptrGrabResult = grabResult;//将捕获到的图像传递出去qDebug() <<"Captureok"<<endl;QImage CurrentImg;CurrentImg = CopyImgToQImage(m_ptrGrabResult);if(TestImg_WorkType == 1){emit canShowImg(CurrentImg);//            startImgProcess(CurrentImg);qDebug() <<"Captureok"<<endl;}else{emit canShowImg(CurrentImg);}}m_mutexLock.unlock();
}void Balser_GigeCamera::StartAcquire()
{if ( !m_basler.IsGrabbing() ){qDebug()<<"grabstart"<<endl;GrabOnLine_Signal = true;m_basler.StartGrabbing(GrabStrategy_LatestImageOnly,GrabLoop_ProvidedByInstantCamera);}else {qDebug()<<"error"<<endl;}
}void Balser_GigeCamera::StartSnap()
{m_basler.StartGrabbing(1);CBaslerUniversalGrabResultPtr ptrGrabResult;m_basler.RetrieveResult( 5000, ptrGrabResult, TimeoutHandling_ThrowException);if (ptrGrabResult->GrabSucceeded()){qDebug()<<"snapok"<<endl;QImage CurrentImg = CopyImgToQImage(ptrGrabResult);emit canShowImg(CurrentImg);if(TestImg_WorkType == 0){//            startImgProcess(CurrentImg);TestImg_WorkType = -1;}}
}void Balser_GigeCamera::StopAcquire()
{if ( m_basler.IsGrabbing()){GrabOnLine_Signal = false;m_basler.StopGrabbing();  // 停止抓取图像}
}void Balser_GigeCamera::AutoExposureOnce(CBaslerUniversalInstantCamera& camera)
{if ( !camera.ExposureAuto.IsWritable()){cout << "The camera does not support Exposure Auto." << endl << endl;return;}camera.ExposureAuto.SetValue(ExposureAuto_Once);int n = 0;while (camera.ExposureAuto.GetValue() != ExposureAuto_Off){++n;//For demonstration purposes only. Wait until the image is shown.WaitObject::Sleep(100);//Make sure the loop is exited.if (n > 100){throw TIMEOUT_EXCEPTION( "The adjustment of auto exposure did not finish.");}}
}void Balser_GigeCamera::WorkTypeSignal(int work_type)
{TestImg_WorkType = work_type;
}QImage Balser_GigeCamera::CopyImgToQImage(CGrabResultPtr ptrGrabResult)
{QImage Qimg;//格式转换m_formatConverter.Convert(pylonImage, ptrGrabResult);uchar * din = (uchar *)(pylonImage.GetBuffer()); //数据指针//单通道Momoif(IsMono(pylonImage.GetPixelType())){qDebug()<<"黑白图像";Qimg = QImage(din, ptrGrabResult->GetWidth(), ptrGrabResult->GetHeight(), QImage::Format_Indexed8);}else{//此处可以根据相机的格式获取特定格式的彩色图像if(IsRGB(pylonImage.GetPixelType())){Qimg = QImage(din, ptrGrabResult->GetWidth(), ptrGrabResult->GetHeight(), QImage::Format_RGB888);}}return Qimg;
}

4、源码下载

相机采图及相机设置部分封装成动态库，可以在UI线程调用相机类来实现相机的加载，采图及参数设置操作。
源码下载：https://download.csdn.net/download/fengyaowuhui/85002116?spm=1001.2014.3001.5501

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