- 最近开发一个项目，用映美精相机配合halcon做取图开发，由于网上资料小特意写个记录。
- 到映美精官网下载驱动，映美精官网，下载映美精的工具开发包SDK 映美精的SDK
- 下载SDK后找到classlib文件夹
里面就是SDK - 新建一个qt程序，引入SDK
- 新建一个相机类
头文件
#ifndef CAMERAGRAP_H
#define CAMERAGRAP_H#include <QObject>
#include "QDebug"
#include <tisudshl.h>
#include <algorithm>/***sink监控***/
class SinkListener : public DShowLib::FrameQueueSinkListener
{
public:/***槽链接成功***/void sinkConnected(DShowLib::FrameQueueSink& sink,const DShowLib::FrameTypeInfo& frameType );/***取到图片是响应***/void framesQueued( DShowLib::FrameQueueSink& sink );/***槽链接断开回调***/void sinkDisconnected(DShowLib::FrameQueueSink& sink );
};class CameraGrap : public QObject
{Q_OBJECT
public:explicit CameraGrap(QObject *parent = nullptr);~CameraGrap();/***初始化***/void Init();/***读取配置***/void ReadConfig();/***保存配置***/bool WriteConfig();/***开始相机***/void StartCamera();/***停止相机***/void StopCamera();/***释放资源***/void ReleaseSource();/***设置相机的触发模式为触发取图***/void SetCameraTriggerTakeImage();/***设置相机试试视频取图***/void SetCameraLiveTakeImage();/***设置相机曝光***/void SetCameraExpource(double expource_);/***设置相机增益***/void SetCameraGain(double gain_);/***触发下相机取图***/void TriggerCameraTakeImage();// /***槽链接成功***/// void sinkConnected(DShowLib::FrameQueueSink& sink,// const DShowLib::FrameTypeInfo& frameType );// /***取到图片是响应***/// void framesQueued( DShowLib::FrameQueueSink& sink );// /***槽链接断开回调***/// void sinkDisconnected(DShowLib::FrameQueueSink& sink );// /***重写取图回调函数***/// void frameReady(DShowLib::Grabber& caller, smart_ptr<DShowLib::MemBuffer> pBuffer, DWORD FrameNumber ) override;// void overlayCallback(DShowLib::Grabber& caller, smart_ptr<DShowLib::OverlayBitmap> pBitmap, const DShowLib::tsMediaSampleDesc& desc );signals:// /***获取图片完成标志***/// void FinallyGetImage();
public:static CameraGrap _camer_grap;/***相机名称***/QString _camera_name;/***相机视频的格式***/QString _camera_video_format;/***相机曝光***/double _camera_expource;/***相机增益***/double _camera_gain;/***相机抗干扰数***/double _camera_noise_suppression;/***相机有无标志***/bool _camera_exist;/***创建一个抓拍,一定创建成指针形式，不然会跟***/DShowLib::Grabber* _grabber;// /***sink监控***/SinkListener _listener_instance;// DShowLib::FrameTypeInfoArray _accepted_types;/***接受图片的格式***/DShowLib::FrameTypeInfo _accepted_type;/***槽***/DShowLib::tFrameQueueSinkPtr _psink;
};#endif // CAMERAGRAP_H内容文件
#include "cameragrap.h"
#include <DeeplearnInspection/deeplearninspection.h>
#include <QCoreApplication>
#include "xlsxdocument.h"
#include "QMetaMethod"
// #include "ic4-interop/interop-HALCON.h"CameraGrap CameraGrap::_camer_grap;void SinkListener::sinkConnected(DShowLib::FrameQueueSink& sink,const DShowLib::FrameTypeInfo& frameType )
{UNREFERENCED_PARAMETER( frameType );/***链接成功分配内存***/sink.allocAndQueueBuffers(1);
}void SinkListener::framesQueued(DShowLib::FrameQueueSink& sink)
{DShowLib::tFrameQueueBufferPtr buffer = sink.popOutputQueueBuffer();//unsigned int frame_number = buffer->getFrameMetaData().mediaSampleDesc.FrameNumber;// DShowLib::tColorformatEnum format_= buffer->getFrameType().getColorformat();int width_=buffer->getFrameType().dim.cx;int height_=buffer->getFrameType().dim.cy;// HalconCpp::GenImageInterleaved(&ho_Image, (void*)pBuffer, "rgb", width, height, 0, "byte", width * 3, height, 0, 0);HalconCpp::HTuple hptr_=(Hlong)buffer->getPtr();HalconCpp::GenImage1(&DeeplearnInspection::_deeplearn_inspection._image,"byte",width_,height_,hptr_);DeeplearnInspection::_deeplearn_inspection._image_exist=true;hptr_.Clear();/***释放内存资源***/buffer.destroy();int size_input_= sink.getInputQueueSize();int size_output_=sink.getOutputQueueSize();sink.popAllOutputQueueBuffers().clear();sink.popAllInputQueueBuffers().clear();/***重新分配内存资源***/sink.allocAndQueueBuffers(1);size_input_= sink.getInputQueueSize();size_output_=sink.getOutputQueueSize();/***触发相机取图完成***/DeeplearnInspection::_deeplearn_inspection.TriggerCameraImageWriteFinally();
}void SinkListener::sinkDisconnected(DShowLib::FrameQueueSink& sink)
{;
}CameraGrap::CameraGrap(QObject *parent): QObject{parent}
{
}CameraGrap::~CameraGrap()
{
}void CameraGrap::Init()
{/***读取配置***/ReadConfig();/***初始化相机底层***/DShowLib::InitLibrary();/***创建一个抓拍***/_grabber=new DShowLib::Grabber();/***获取相机驱动***/auto cameras_= _grabber->getAvailableVideoCaptureDevices();/***判断有没有相机***/int camera_count_= cameras_->size();if(camera_count_>0){for(int i=0;i<camera_count_;i++){/***获取相机名称***/std::string camera_name_;camera_name_=cameras_->at(i).getName();if(camera_name_==_camera_name.toStdString()){i=camera_count_;if(_grabber->openDev(camera_name_)){//_grabber->showVCDPropertyPage();/***设置图片格式***/// _grabber->setVideoFormat("Y800 (1424x712)");DShowLib::dstringa video_format_=_camera_video_format.toStdString();_grabber->setVideoFormat(video_format_);/***设置外部出发***/_grabber->setExternalTrigger(1);/***给如抗误触发参数***/DShowLib::tIVCDAbsoluteValuePropertyPtr noise_suppression_time_ = _grabber->getVCDPropertyInterface<DShowLib::IVCDAbsoluteValueProperty>(DShowLib::VCDID_Trigger, DShowLib::VCDElement_TriggerNoiseSuppressionTime);if(noise_suppression_time_==NULL){qDebug() << "noise suppression time auto is failed";}else{long max_=noise_suppression_time_->getRangeMax();long min_=noise_suppression_time_->getRangeMin();long cvalue_;cvalue_=noise_suppression_time_->getValue();qDebug() << "noise suppression time is "+QString::number(cvalue_);if((max_>=_camera_noise_suppression)&&(min_<=_camera_noise_suppression)){noise_suppression_time_->setValue(_camera_noise_suppression);}else{noise_suppression_time_->setValue(min_);}}/***设置帧率***/_grabber->setFPS(120);// Enable the overlay bitmap to display the frame counter in the live video._grabber->setOverlayBitmapPathPosition( DShowLib::ePP_DEVICE );_grabber->getOverlay(DShowLib::ePP_DEVICE )->setEnable( true );// Create a FrameTypeInfoArray data structure describing the allowed color formats.//_accepted_types= DShowLib::FrameTypeInfoArray::createStandardTypesArray();/***设置槽接受图片的格式***/_accepted_type =DShowLib::eY800;// Create the frame sink_psink= DShowLib::FrameQueueSink::create(this->_listener_instance, _accepted_type);// Apply the sink to the grabber._grabber->setSinkType(_psink);/***设置曝光手动***/DShowLib::tIVCDSwitchPropertyPtr exposure_auto = _grabber->getVCDPropertyInterface<DShowLib::IVCDSwitchProperty>( DShowLib::VCDID_Exposure, DShowLib::VCDElement_Auto);if( exposure_auto == NULL ){qDebug() << "exposure auto is failed";}else{exposure_auto->setSwitch(false);}/***获取曝光的范围，设置相机曝光***/DShowLib::tIVCDRangePropertyPtr exposure_range = _grabber->getVCDPropertyInterface<DShowLib::IVCDRangeProperty>(DShowLib::VCDID_Exposure, DShowLib::VCDElement_Value);if( exposure_range == NULL ){qDebug() << "exposure auto is failed";}else{// std::cout << "Current Exposure range value: " << exposure_range->getValue() << std::endl;// std::cout << "Exposure range range: [" << exposure_range->getRangeMin() << ".." << exposure_range->getRangeMax() << "]" << std::endl;long max_=exposure_range->getRangeMax();long min_=exposure_range->getRangeMin();long cvalue_;cvalue_=exposure_range->getValue();qDebug() << "expource is "+QString::number(cvalue_);if((max_>=_camera_expource)&&(min_<=_camera_expource)){exposure_range->setValue(_camera_expource);}else{exposure_range->setValue(min_);}}// /***确认曝光是否设置成功***/// DShowLib::tIVCDAbsoluteValuePropertyPtr exposure_absolute = _grabber.getVCDPropertyInterface<DShowLib::IVCDAbsoluteValueProperty>( DShowLib::VCDID_Exposure,DShowLib::VCDElement_Value);// if( exposure_absolute == NULL )// {// qDebug() << "vilation is failed";// }// else// {// long exposure_= exposure_absolute->getValue();// qDebug() << "expource is "+QString::number(exposure_);// }/***设置增益手动***/DShowLib::tIVCDSwitchPropertyPtr gain_auto = _grabber->getVCDPropertyInterface<DShowLib::IVCDSwitchProperty>( DShowLib::VCDID_Gain, DShowLib::VCDElement_Auto);if( gain_auto == NULL ){qDebug() << "exposure auto is failed";}else{gain_auto->setSwitch(false);}/***获取增益范围,设置增益***/DShowLib::tIVCDRangePropertyPtr gain_range = _grabber->getVCDPropertyInterface<DShowLib::IVCDRangeProperty>(DShowLib::VCDID_Gain, DShowLib::VCDElement_Value);if( gain_range == NULL ){qDebug() << "exposure auto is failed";}else{long max_=gain_range->getRangeMax();long min_=gain_range->getRangeMin();long cvalue_;cvalue_=gain_range->getValue();if((max_>=_camera_gain)&&(min_<=_camera_gain)){gain_range->setValue(_camera_gain);}else{gain_range->setValue(min_);}}// /***确认曝光是否设置成功***/// DShowLib::tIVCDAbsoluteValuePropertyPtr gain_absolute = _grabber.getVCDPropertyInterface<DShowLib::IVCDAbsoluteValueProperty>( DShowLib::VCDID_Gain,DShowLib::VCDElement_Value);// if( gain_absolute == NULL )// {// qDebug() << "vilation is failed";// }// else// {// long gain_= gain_absolute->getValue();// qDebug() << "gain is "+QString::number(gain_);// }_camera_exist=true;}}}}else{_camera_exist=false;qDebug() << "no found devices";}
}void CameraGrap::ReadConfig()
{QString config_path_=QCoreApplication::applicationDirPath()+"/CameraConfig.xlsx";QFile file_(config_path_);if(file_.exists()){QXlsx::Document xlsx_(config_path_);if(xlsx_.load()){int row_count_=xlsx_.dimension().rowCount();int column_count_=xlsx_.dimension().columnCount();if((row_count_>4)&&(column_count_>1)){_camera_name= xlsx_.cellAt(2,2)->value().toString();_camera_expource=xlsx_.cellAt(3,2)->value().toDouble();_camera_gain=xlsx_.cellAt(4,2)->value().toDouble();_camera_video_format=xlsx_.cellAt(5,2)->value().toString();_camera_noise_suppression=xlsx_.cellAt(6,2)->value().toDouble();}else{qDebug() << "Failed to load CameraConfig.xlsx file.";}}}else{qDebug() << "CameraConfig.xlsx file is not exist";}file_.close();
}bool CameraGrap::WriteConfig()
{bool ok_=false;QString config_path_=QCoreApplication::applicationDirPath()+"/CameraConfig.xlsx";QXlsx::Document xlsx_;/***写入抬头***/xlsx_.write(1,1,"名称");xlsx_.write(1,2,"值");xlsx_.write(2,1,"CameraName");xlsx_.write(2,2,_camera_name);xlsx_.write(3,1,"Expource");xlsx_.write(3,2,QString::number(_camera_expource));xlsx_.write(4,1,"Gain");xlsx_.write(4,2,QString::number(_camera_gain));xlsx_.write(5,1,"VideoFormat");xlsx_.write(5,2,_camera_video_format);xlsx_.write(6,1,"NoiseSuppression");xlsx_.write(6,2,_camera_noise_suppression);if(!xlsx_.saveAs(config_path_)){qDebug() << "save the DataCache.xlsx failed";}else{ok_=true;}return ok_;
}void CameraGrap::StartCamera()
{if(_camera_exist==true){_grabber->startLive(false);}
}void CameraGrap::StopCamera()
{if(_camera_exist==true){_grabber->stopLive();}
}void CameraGrap::ReleaseSource()
{if(_camera_exist==true){if (_grabber->isDevOpen()){if(_grabber->isLive()){_grabber->stopLive();}_grabber->closeDev();}}delete _grabber;
}void CameraGrap::SetCameraTriggerTakeImage()
{if(_camera_exist==true){/***设置触发模式为软触发***/_grabber->setExternalTrigger(true);}
}void CameraGrap::SetCameraLiveTakeImage()
{if(_camera_exist==true){/***设置相机直播模式***/_grabber->setExternalTrigger(false);}
}void CameraGrap::SetCameraExpource(double expource_)
{if(_camera_exist==true){_camera_expource =expource_;/***获取曝光的范围，设置相机曝光***/DShowLib::tIVCDRangePropertyPtr exposure_range = _grabber->getVCDPropertyInterface<DShowLib::IVCDRangeProperty>(DShowLib::VCDID_Exposure, DShowLib::VCDElement_Value);if( exposure_range == NULL ){qDebug() << "exposure auto is failed";}else{// std::cout << "Current Exposure range value: " << exposure_range->getValue() << std::endl;// std::cout << "Exposure range range: [" << exposure_range->getRangeMin() << ".." << exposure_range->getRangeMax() << "]" << std::endl;long max_=exposure_range->getRangeMax();long min_=exposure_range->getRangeMin();long cvalue_;cvalue_=exposure_range->getValue();qDebug() << "expource is "+QString::number(cvalue_);if((max_>_camera_expource)&&(min_<_camera_expource)){exposure_range->setValue(_camera_expource);}else{exposure_range->setValue(min_);}}}
}void CameraGrap::SetCameraGain(double gain_)
{if(_camera_exist==true){_camera_gain=gain_;DShowLib::tIVCDRangePropertyPtr gain_range = _grabber->getVCDPropertyInterface<DShowLib::IVCDRangeProperty>(DShowLib::VCDID_Gain, DShowLib::VCDElement_Value);if( gain_range == NULL ){qDebug() << "exposure auto is failed";}else{long max_=gain_range->getRangeMax();long min_=gain_range->getRangeMin();long cvalue_;cvalue_=gain_range->getValue();if((max_>_camera_gain)&&(min_<_camera_gain)){gain_range->setValue(_camera_gain);}else{gain_range->setValue(min_);}}}
}void CameraGrap::TriggerCameraTakeImage()
{if(_camera_exist==true){DShowLib::tIVCDButtonPropertyPtr btn_= _grabber->getVCDPropertyInterface<DShowLib::IVCDButtonProperty>(DShowLib::VCDID_TriggerMode, DShowLib::VCDElement_SoftwareTrigger);if(btn_==NULL){}else{btn_->push();}}
}// void CameraGrap::frameReady(DShowLib::Grabber& caller,smart_ptr<DShowLib::MemBuffer> pBuffer,DWORD FrameNumber)
// {
// // int width_=pBuffer->getFrameType().dim.cx;
// // int height_=pBuffer->getFrameType().dim.cy;// // uchar* ptr_=static_cast<uchar*>(pBuffer->getPtr());
// // HalconCpp::HTuple hptr_=(int)ptr_;// // HalconCpp::GenImage1(&DeeplearnInspection::_deeplearn_inspection._image,
// // "byte",
// // width_,
// // height_,
// // hptr_);
// // hptr_.Clear();// // QMetaMethod value_change_signal_=QMetaMethod::fromSignal(&CameraGrap::FinallyGetImage);
// // if(this->isSignalConnected(value_change_signal_))
// // {
// // emit FinallyGetImage();
// // }
// ;
// }// void CameraGrap::overlayCallback(DShowLib::Grabber& caller,
// smart_ptr<DShowLib::OverlayBitmap> pBitmap,
// const DShowLib::tsMediaSampleDesc& desc)
// {// }6.代码分析
要获取相机的图片，主要创建一个类继承public DShowLib::FrameQueueSinkListener，
然后设置sink，代码如下:
// Create the frame sink
_psink= DShowLib::FrameQueueSink::create(this->_listener_instance, _accepted_type);
// Apply the sink to the grabber.
_grabber->setSinkType(_psink);
在相机取到图片后会回调sink，即回调framesQueued函数，在里面进行转换。
