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
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/$${TARGET}/bin
else: unix:!android: target.path = /opt/$${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$$PWD/halcon/win/lib/x64-win64/ -lhalcon
LIBS += -L$$PWD/halcon/win/lib/x64-win64/ -lhalconc
LIBS += -L$$PWD/halcon/win/lib/x64-win64/ -lhalconcpp
LIBS += -L$$PWD/halcon/win/lib/x64-win64/ -lhalconcppxl
LIBS += -L$$PWD/halcon/win/lib/x64-win64/ -lhalconcxl
LIBS += -L$$PWD/halcon/win/lib/x64-win64/ -lhalconxl
LIBS += -L$$PWD/halcon/win/lib/x64-win64/ -lhdevenginecpp
LIBS += -L$$PWD/halcon/win/lib/x64-win64/ -lhdevenginecppxl
LIBS += -L$$PWD/halcon/win/lib/x64-win64/ -llibiomp5md
#INCLUDEPATH += $$PWD/halcon/win/include
#DEPENDPATH += $$PWD/halcon/win/include
INCLUDEPATH += $$PWD/halcon/linux/include
DEPENDPATH += $$PWD/halcon/linux/include
}
unix:{
LIBS += -L$$PWD/halcon/linux/lib/x64-linux -lhalcon
LIBS += -L$$PWD/halcon/linux/lib/x64-linux -lhalconc
LIBS += -L$$PWD/halcon/linux/lib/x64-linux -lhalconcpp
LIBS += -L$$PWD/halcon/linux/lib/x64-linux -lhalconcppxl
LIBS += -L$$PWD/halcon/linux/lib/x64-linux/ -lhalconcxl
LIBS += -L$$PWD/halcon/linux/lib/x64-linux -lhalconxl
LIBS += -L$$PWD/halcon/linux/lib/x64-linux -lhdevenginecpp
LIBS += -L$$PWD/halcon/linux/lib/x64-linux -lhdevenginecppxl
INCLUDEPATH += $$PWD/halcon/linux/include
DEPENDPATH += $$PWD/halcon/linux/include
}
头文件
#ifndef WIDGET_H
#define WIDGET_H
#include <QWidget>
#include <QLabel>
#include <QPushButton>
#include <QGroupBox>
#include <QRadioButton>
#include <QStackedWidget>
#include <QLineEdit>
#include <QStyle>
#include <QDebug>
#include <QStandardItemModel>
#include <QTabWidget>
#include <QTableWidget>
#include <QHeaderView>
#include <QTableWidgetItem>
#include <QFileDialog>
#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;
HTuple hv_WindowHandle;
//HTuple hv_AcqHandle;
HObject ho_Image;
HTuple hv_Width, hv_Height;
//Hlong windID;
Hlong MainWndID;
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++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("open file"),".",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 "<<endl;
if(!dir.exists()){
qDebug()<<"文件路径错误";
//return false;
}
dir.setFilter(QDir::Files | QDir::NoSymLinks);
QStringList filters;
filters <<"*.bmp"<<"*.jpg"<<"*.pbm"<<"*.pgm"<<"*.png"<<"*.ppm"<<"*.xbm"<<"*.xpm"<<"*.jpeg";
dir.setNameFilters(filters);
filenameList = dir.entryList();
qDebug()<<filenameList;
///
tableWidget->clearContents();
tableWidget->setRowCount(filenameList.count());
for(int i=0;i<filenameList.count();i++)
{
qDebug()<<filenameList[i];
//QTableWidgetItem *item = new QTableWidgetItem();
item0 = new QTableWidgetItem();
item0->setCheckState(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)
{
HTuple hv_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)
{
HTuple hv_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)
{
HTuple hv_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;i<tableWidget->rowCount();i++){
if(tableWidget->item(i, 0)->checkState() == Qt::Checked){
readfilelist.append(file_path+"/"+filenameList[i]);
}
}
qDebug()<<readfilelist;
//readfilelist
}
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