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C++|C++ Qt之halcon读取像素项目过程详解

项目环境：win10，qt5.14，halcon20
功能：1.读取指定图像2.读取指定目录下的图像
C++|C++ Qt之halcon读取像素项目过程详解
文章图片

C++|C++ Qt之halcon读取像素项目过程详解
文章图片

项目配置文件

QT+= core gui greaterThan(QT_MAJOR_VERSION, 4): QT += widgets CONFIG += c++11 # The following define makes your compiler emit warnings if you use# any Qt feature that has been marked deprecated (the exact warnings# depend on your compiler). Please consult the documentation of the# deprecated API in order to know how to port your code away from it.DEFINES += QT_DEPRECATED_WARNINGS # You can also make your code fail to compile if it uses deprecated APIs.# In order to do so, uncomment the following line.# You can also select to disable deprecated APIs only up to a certain version of Qt.#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000# disables all the APIs deprecated before Qt 6.0.0 SOURCES += \main.cpp \widget.cpp HEADERS += \widget.h # Default rules for deployment.qnx: target.path = /tmp/$${TARGET}/binelse: unix:!android: target.path = /opt/$${TARGET}/bin!isEmpty(target.path): INSTALLS += target #win32和unix下的include实际上是一样的win32:{#halcon配置代码，已经将include、lib拷贝到项目之下LIBS += -L$$PWD/halcon/win/lib/x64-win64/ -lhalconLIBS += -L$$PWD/halcon/win/lib/x64-win64/ -lhalconcLIBS += -L$$PWD/halcon/win/lib/x64-win64/ -lhalconcppLIBS += -L$$PWD/halcon/win/lib/x64-win64/ -lhalconcppxlLIBS += -L$$PWD/halcon/win/lib/x64-win64/ -lhalconcxlLIBS += -L$$PWD/halcon/win/lib/x64-win64/ -lhalconxlLIBS += -L$$PWD/halcon/win/lib/x64-win64/ -lhdevenginecppLIBS += -L$$PWD/halcon/win/lib/x64-win64/ -lhdevenginecppxlLIBS += -L$$PWD/halcon/win/lib/x64-win64/ -llibiomp5md #INCLUDEPATH += $$PWD/halcon/win/include#DEPENDPATH += $$PWD/halcon/win/include INCLUDEPATH += $$PWD/halcon/linux/includeDEPENDPATH += $$PWD/halcon/linux/include} unix:{LIBS += -L$$PWD/halcon/linux/lib/x64-linux -lhalconLIBS += -L$$PWD/halcon/linux/lib/x64-linux -lhalconcLIBS += -L$$PWD/halcon/linux/lib/x64-linux -lhalconcppLIBS += -L$$PWD/halcon/linux/lib/x64-linux -lhalconcppxlLIBS += -L$$PWD/halcon/linux/lib/x64-linux/ -lhalconcxlLIBS += -L$$PWD/halcon/linux/lib/x64-linux -lhalconxlLIBS += -L$$PWD/halcon/linux/lib/x64-linux -lhdevenginecppLIBS += -L$$PWD/halcon/linux/lib/x64-linux -lhdevenginecppxl INCLUDEPATH += $$PWD/halcon/linux/includeDEPENDPATH += $$PWD/halcon/linux/include}

头文件
#ifndef WIDGET_H#define WIDGET_H #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "halconcpp/HalconCpp.h"#include "Halcon.h" using namespace HalconCpp; #pragma execution_character_set("utf-8") //支持中文 class Widget : public QWidget{Q_OBJECT public:Widget(QWidget *parent = nullptr); ~Widget(); private:QLabel *image_label; HTuplehv_WindowHandle; //HTuplehv_AcqHandle; HObjectho_Image; HTuplehv_Width, hv_Height; //Hlong windID; HlongMainWndID; QGroupBox *groupbox1; QRadioButton *radio1; QRadioButton *radio2; QStackedWidget *stackedwidget; QWidget *page1; QWidget *page2; QLineEdit *ledit1; QPushButton *btn1; QLineEdit *ledit2; QPushButton *btn2; QTableWidget *tableWidget; QTableWidgetItem *item0; QString file_path; QStringList filenameList; //QStringList fullfilename; QPushButton *btn3; void create_widget(); void filelist_refresh(); QStringList readfilelist; QString file_name1; QString file_name2; int imageNo=0; /*enum CellType{ct_isUsed,ct_rowNo}; enum FieldColNum{col_isUsed,col_rowNo}; QLabel *labCellIndex; QLabel *labCellType; QLabel *labID; void createItemsARow(bool isUsed,int rowNo,QString FileName); */ private slots:void on_radioButton1_clicked(); void on_radioButton2_clicked(); void on_btn1_clicked(); void on_btn2_clicked(); void on_btn3_clicked(); //void on_item_clicked(QTableWidgetItem * item); void on_checkchangestate(int, int); //void slotHeaderClicked(int); }; #endif // WIDGET_H

【C++|C++ Qt之halcon读取像素项目过程详解】c++文件
#include "widget.h" Widget::Widget(QWidget *parent): QWidget(parent){create_widget(); connect(radio1,SIGNAL(clicked(bool)),this,SLOT(on_radioButton1_clicked())); connect(radio2,SIGNAL(clicked(bool)),this,SLOT(on_radioButton2_clicked())); connect(btn1,SIGNAL(clicked(bool)),this,SLOT(on_btn1_clicked())); connect(btn2,SIGNAL(clicked(bool)),this,SLOT(on_btn2_clicked())); connect(btn3,SIGNAL(clicked(bool)),this,SLOT(on_btn3_clicked())); connect(tableWidget, SIGNAL(cellClicked(int, int)), this, SLOT(on_checkchangestate(int, int))); //connect(tableWidget->horizontalHeader(), SIGNAL(sectionClicked(int)), this, SLOT(slotHeaderClicked(int))); } Widget::~Widget(){} void Widget::create_widget(){this->setFixedSize(916,547); this->setWindowTitle("图像读取"); image_label =new QLabel(this); image_label->setGeometry(290,20,611,461); MainWndID = (Hlong)this->image_label->winId(); SetWindowAttr("background_color","gray"); //设置背景为灰色OpenWindow(0, 0, image_label->width(), image_label->height(), MainWndID,"visible", "", &hv_WindowHandle); HDevWindowStack::Push(hv_WindowHandle); groupbox1 = new QGroupBox(this); groupbox1->setGeometry(10,20,261,121); QLabel *label1 =new QLabel(this->groupbox1); label1->setText("采集模式"); label1->setGeometry(0,0,261,21); radio1 = new QRadioButton(tr("指定图像"),this->groupbox1); radio2 = new QRadioButton(tr("文件目录"),this->groupbox1); radio1->setGeometry(50,40,100,20); radio2->setGeometry(50,70,100,20); radio1->setChecked(true); stackedwidget = new QStackedWidget(this); stackedwidget->setGeometry(20,160,251,301); page1 = new QWidget(); QLabel *label2 =new QLabel(page1); label2->setGeometry(0,0,100,20); label2->setText("指定图片"); ledit1 = new QLineEdit(page1); //ledit1->setGeometry(30,130,150,30); ledit1->setGeometry(0,130,200,30); ledit1->setReadOnly(true); btn1 = new QPushButton(page1); btn1->setGeometry(200,130,30,30); btn1->setIcon(style()->standardIcon(QStyle::SP_FileDialogContentsView)); page2 = new QWidget(); QLabel *label3 =new QLabel(page2); label3->setGeometry(0,0,100,20); label3->setText("文件目录"); ledit2 = new QLineEdit(page2); ledit2->setGeometry(30,30,150,30); btn2 = new QPushButton(page2); btn2->setGeometry(180,30,30,30); btn2->setIcon(style()->standardIcon(QStyle::SP_FileDialogContentsView)); //QTableWidget *tableWidget = new QTableWidget(10,3,page2); tableWidget = new QTableWidget(page2); //QTableWidget *tableWidget = new QTableWidget(page2); tableWidget->setRowCount(0); tableWidget->setColumnCount(3); //page2->addWidget(); tableWidget->setGeometry(0,70,251,230); //tableWidget->resizeColumnsToContents(); //tableWidget->resizeRowsToContents(); //tableWidget->setColumnWidth(3,200); tableWidget->setColumnWidth(0,50); tableWidget->setColumnWidth(1,50); //tableWidget->setColumnWidth(2,QHeaderView::Stretch); tableWidget->setColumnWidth(2,120); //tableWidget->setRowHeight(3,60); tableWidget->verticalHeader()->setVisible(false); //隐藏列表头//tableWidget->horizontalHeader()->setVisible(false); //隐藏行表头 tableWidget->show(); QStringList headerText; headerText<<"选取"<<"索引"<<"文件名"; tableWidget->setHorizontalHeaderLabels(headerText); tableWidget->setEditTriggers(QAbstractItemView::NoEditTriggers); tableWidget->horizontalHeader()->setDisabled(true); //禁止用户拖动改变列宽tableWidget->verticalHeader()->setDisabled(true); //设置行不能拖动//tableWidget->setEnabled(false); stackedwidget->addWidget(page1); stackedwidget->addWidget(page2); btn3 = new QPushButton(this); btn3->setGeometry(540,505,91,31); btn3->setText("执行"); } void Widget::on_radioButton1_clicked(){qDebug()<<"1"; stackedwidget->setCurrentIndex(0); } void Widget::on_radioButton2_clicked(){qDebug()<<"2"; stackedwidget->setCurrentIndex(1); } void Widget::on_btn1_clicked(){qDebug()<<"btn1"; qDebug() << "按下了1号按钮，读取图片"; file_name1 = QFileDialog::getOpenFileName(this,tr("openfile"),".",tr("Video Files(*.bmp *.jpg *.pbm *.pgm *.png *.ppm *.xbm *.xpm *.jpeg)")); ledit1->setText(file_name1); } void Widget::on_btn2_clicked(){//imageNo = 0; qDebug()<<"btn2"; qDebug() << "按下了2号按钮，读取图片"; try{ file_path = QFileDialog::getExistingDirectory(this,tr("Open Directory"),"./"); qDebug() << file_path; ledit2->setText(file_path); QDir dir(file_path); //cout<<"bian li kai shi "<clearContents(); tableWidget->setRowCount(filenameList.count()); for(int i=0; isetCheckState(Qt::Checked); tableWidget->setItem(i, 0, item0); QTableWidgetItem *item1 = new QTableWidgetItem(QString::number(i)); tableWidget->setItem(i, 1, item1); QTableWidgetItem *item2 = new QTableWidgetItem(filenameList[i]); tableWidget->setItem(i, 2, item2); } filelist_refresh(); }catch (HException &HDevExpDefaultException){HTuplehv_Exception; HDevExpDefaultException.ToHTuple(&hv_Exception); } } void Widget::on_btn3_clicked(){qDebug() << "按下了3号按钮，读取图片"; ClearWindow(hv_WindowHandle); if(radio1->isChecked()){//显示指定图片try{//QString file_name; QString image; if(file_name1.isNull()){image = ""; }else{image=file_name1; }ReadImage(&ho_Image,image.toLatin1().data()); GetImageSize(ho_Image, &hv_Width, &hv_Height); SetPart(hv_WindowHandle, 0, 0, hv_Height, hv_Width); DispObj(ho_Image, HDevWindowStack::GetActive()); }catch (HException &HDevExpDefaultException){HTuplehv_Exception; HDevExpDefaultException.ToHTuple(&hv_Exception); } }else if(radio2->isChecked()){//显示文件目录下选取图像]if(imageNo>=readfilelist.count()){imageNo=0; }try{//QString file_name; QString image; if(readfilelist.isEmpty()){image=""; }else{image = readfilelist[imageNo]; }ReadImage(&ho_Image,image.toLatin1().data()); GetImageSize(ho_Image, &hv_Width, &hv_Height); SetPart(hv_WindowHandle, 0, 0, hv_Height, hv_Width); DispObj(ho_Image, HDevWindowStack::GetActive()); imageNo++; }catch (HException &HDevExpDefaultException){HTuplehv_Exception; HDevExpDefaultException.ToHTuple(&hv_Exception); }} } void Widget::on_checkchangestate(int value1, int value2){ if(value2==0&&tableWidget->item(value1, value2)->checkState() == Qt::Checked){qDebug()<<"选中"; }else if(value2==0&&tableWidget->item(value1, value2)->checkState() == Qt::Unchecked){qDebug()<<"未选中"; }filelist_refresh(); } void Widget::filelist_refresh(){imageNo = 0; readfilelist.clear(); for(int i=0; irowCount(); i++){if(tableWidget->item(i, 0)->checkState() == Qt::Checked){readfilelist.append(file_path+"/"+filenameList[i]); }}qDebug()<
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