C++ e“mysecondqtproject.h” #包括“showerrordialog.h” #包括 #包括“objectdetect.h” MySecondQtProject:：MySecondQtProject（QWidget*parent） ：QDialog（父级） { ui.setupUi（这个）； } MySecondQtProject:：~MySecondQtProject（） { } void MySecondQtProject:：在\u pushImage\u clicked（）上 { 形象= QFileDialog:：getOpenFileName（this，tr（“打开文件”），“C:/Users/mankum93/Documents/Visual Studio 2013/Projects/BananaClassifiedRopencv/BananaClassifiedRopencv”， “图像（*.png*.xpm*.jpg）”； } void MySecondQtProject:：在单击时 { 分级机= QFileDialog:：getOpenFileName（this，tr（“打开文件”），“C:/Users/mankum93/Documents/Visual Studio 2013/Projects/BananaClassifiedRopencv/BananaClassifiedRopencv”， “XML文件（*.XML）”）； } void MySecondQtProject:：在点击确定时（） { 接受（）； //现在让我们比较任何字符串的无效性： if（image.isNull（）| | classifier.isNull（）） { 打开对话框（此）； dialog.exec（）； } 其他的 { //将Qstring转换为std:：string 字符串imageFileName=image.toLocal8Bit（）.constData（）； 字符串cascadeFileName=分类器.toLocal8Bit（）.constData（）； //现在，我们可以转到主检测逻辑 detectObject（图像文件名、级联文件名）； } }

编辑3:以下是您可能想要查看的其他有用文件

/********************************************************************************
** Form generated from reading UI file 'mysecondqtproject.ui'
**
** Created by: Qt User Interface Compiler version 5.4.1
**
** WARNING! All changes made in this file will be lost when recompiling UI file!
********************************************************************************/

#ifndef UI_MYSECONDQTPROJECT_H
#define UI_MYSECONDQTPROJECT_H

#include <QtCore/QVariant>
#include <QtWidgets/QAction>
#include <QtWidgets/QApplication>
#include <QtWidgets/QButtonGroup>
#include <QtWidgets/QDialog>
#include <QtWidgets/QHeaderView>
#include <QtWidgets/QPushButton>
#include <QtWidgets/QVBoxLayout>
#include <QtWidgets/QWidget>

QT_BEGIN_NAMESPACE

class Ui_MySecondQtProjectClass
{
public:
    QPushButton *pushOK;
    QWidget *layoutWidget;
    QVBoxLayout *verticalLayout;
    QPushButton *pushImage;
    QPushButton *pushClassifier;

    void setupUi(QDialog *MySecondQtProjectClass)
    {
        if (MySecondQtProjectClass->objectName().isEmpty())
            MySecondQtProjectClass->setObjectName(QStringLiteral("MySecondQtProjectClass"));
        MySecondQtProjectClass->resize(600, 272);
        pushOK = new QPushButton(MySecondQtProjectClass);
        pushOK->setObjectName(QStringLiteral("pushOK"));
        pushOK->setGeometry(QRect(290, 220, 91, 31));
        layoutWidget = new QWidget(MySecondQtProjectClass);
        layoutWidget->setObjectName(QStringLiteral("layoutWidget"));
        layoutWidget->setGeometry(QRect(200, 100, 181, 91));
        verticalLayout = new QVBoxLayout(layoutWidget);
        verticalLayout->setSpacing(6);
        verticalLayout->setContentsMargins(11, 11, 11, 11);
        verticalLayout->setObjectName(QStringLiteral("verticalLayout"));
        verticalLayout->setContentsMargins(0, 0, 0, 0);
        pushImage = new QPushButton(layoutWidget);
        pushImage->setObjectName(QStringLiteral("pushImage"));

        verticalLayout->addWidget(pushImage);

        pushClassifier = new QPushButton(layoutWidget);
        pushClassifier->setObjectName(QStringLiteral("pushClassifier"));

        verticalLayout->addWidget(pushClassifier);


        retranslateUi(MySecondQtProjectClass);
        QObject::connect(pushImage, SIGNAL(clicked()), MySecondQtProjectClass, SLOT(on_pushImage_clicked()));
        QObject::connect(pushClassifier, SIGNAL(clicked()), MySecondQtProjectClass, SLOT(on_pushClassifier_clicked()));
        QObject::connect(pushOK, SIGNAL(clicked()), MySecondQtProjectClass, SLOT(on_pushOK_clicked()));

        QMetaObject::connectSlotsByName(MySecondQtProjectClass);
    } // setupUi

    void retranslateUi(QDialog *MySecondQtProjectClass)
    {
        MySecondQtProjectClass->setWindowTitle(QApplication::translate("MySecondQtProjectClass", "MySecondQtProject", 0));
        pushOK->setText(QApplication::translate("MySecondQtProjectClass", "OK", 0));
        pushImage->setText(QApplication::translate("MySecondQtProjectClass", "Browse for the Image", 0));
        pushClassifier->setText(QApplication::translate("MySecondQtProjectClass", "Browse for the classifier", 0));
    } // retranslateUi

};

namespace Ui {
    class MySecondQtProjectClass: public Ui_MySecondQtProjectClass {};
} // namespace Ui

QT_END_NAMESPACE

#endif // UI_MYSECONDQTPROJECT_H

/********************************************************************************
**从读取UI文件“mysecondqtproject.UI”生成的表单
**
**创建人：Qt用户界面编译器版本5.4.1
**
**警告！重新编译UI文件时，此文件中所做的所有更改都将丢失！
********************************************************************************/
#ifndef UI_MYSECONDQTPROJECT_H
#定义UI_MYSECONDQTPROJECT_H
#包括
#包括
#包括
#包括
#包括
#包括
#包括
#包括
#包括
QT_开始名称空间
类Ui_MySecondQtProjectClass
{
公众：
QPushButton*pushOK；
QWidget*layoutWidget；
QVBoxLayout*垂直布局；
QPushButton*按钮图像；
QPushButton*按钮分类器；
无效设置UI（QDialog*MySecondQtProjectClass）
{
如果（MySecondQtProjectClass->objectName（）.isEmpty（））
MySecondQtProjectClass->setObjectName（QStringLiteral（“MySecondQtProjectClass”）；
MySecondQtProjectClass->调整大小（600272）；
pushOK=新的QPushButton（MySecondQtProjectClass）；
pushOK->setObjectName（QStringLiteral（“pushOK”）；
pushOK->setGeometry（QRect（290、220、91、31））；
layoutWidget=新的QWidget（MySecondQtProjectClass）；
layoutWidget->setObjectName（QStringLiteral（“layoutWidget”）；
layoutWidget->setGeometry（QRect（20010018191））；
verticalLayout=新的QVBoxLayout（layoutWidget）；
垂直布局->设置间距（6）；
垂直布局->设置内容边缘（11,11,11,11）；
verticalLayout->setObjectName（QStringLiteral（“verticalLayout”）；
垂直布局->设置内容边缘（0,0,0,0）；
pushImage=新的QPushButton（layoutWidget）；
pushImage->setObjectName（QStringLiteral（“pushImage”）；
垂直布局->添加小部件（pushImage）；
pushClassifier=新的QPushButton（layoutWidget）；
pushClassifier->setObjectName（QStringLiteral（“pushClassifier”）；
垂直布局->添加小部件（pushClassifier）；
重新翻译（MySecondQtProjectClass）；
QObject:：connect（pushImage，信号（单击（）），MySecondQtProjectClass，插槽（在pushImage上单击（））；
连接（pushClassifier，SIGNAL（clicked（）），MySecondQtProjectClass，SLOT（在pushClassifier上单击（））；
QObject:：connect（点击OK，信号（点击（）），MySecondQtProjectClass，插槽（点击OK，点击（））；
QMetaObject:：connectSlotsByName（MySecondQtProjectClass）；
}//setupUi
无效重新传输（QDialog*MySecondQtProjectClass）
{
MySecondQtProjectClass->setWindowTitle（QApplication:：translate（“MySecondQtProjectClass”，“MySecondQtProject”，0））；
pushOK->setText（QApplication:：translate（“MySecondQtProjectClass”，“OK”，0））；
pushImage->setText（QApplication:：translate（“MySecondQtProjectClass”，“浏览图像”，0））；
pushClassifier->setText（QApplication:：translate（“MySecondQtProjectClass”，“浏览分类器”，0））；
}//重新翻译
};
名称空间用户界面{
类MySecondQtProjectClass:public Ui_MySecondQtProjectClass{}；
}//名称空间用户界面
QT_END_名称空间
#endif//UI\u mysecondqt项目

第二个：

/********************************************************************************
** Form generated from reading UI file 'showerrordialog.ui'
**
** Created by: Qt User Interface Compiler version 5.4.1
**
** WARNING! All changes made in this file will be lost when recompiling UI file!
********************************************************************************/

#ifndef UI_SHOWERRORDIALOG_H
#define UI_SHOWERRORDIALOG_H

#include <QtCore/QVariant>
#include <QtWidgets/QAction>
#include <QtWidgets/QApplication>
#include <QtWidgets/QButtonGroup>
#include <QtWidgets/QDialog>
#include <QtWidgets/QHeaderView>
#include <QtWidgets/QLabel>

QT_BEGIN_NAMESPACE

class Ui_ShowErrorDialog
{
public:
    QLabel *label;

    void setupUi(QDialog *ShowErrorDialog)
    {
        if (ShowErrorDialog->objectName().isEmpty())
            ShowErrorDialog->setObjectName(QStringLiteral("ShowErrorDialog"));
        ShowErrorDialog->resize(400, 65);
        label = new QLabel(ShowErrorDialog);
        label->setObjectName(QStringLiteral("label"));
        label->setGeometry(QRect(70, 20, 241, 21));

        retranslateUi(ShowErrorDialog);

        QMetaObject::connectSlotsByName(ShowErrorDialog);
    } // setupUi

    void retranslateUi(QDialog *ShowErrorDialog)
    {
        ShowErrorDialog->setWindowTitle(QApplication::translate("ShowErrorDialog", "ShowErrorDialog", 0));
        label->setText(QApplication::translate("ShowErrorDialog", "Please properly select the Image or the classifier", 0));
    } // retranslateUi

};

namespace Ui {
    class ShowErrorDialog: public Ui_ShowErrorDialog {};
} // namespace Ui

QT_END_NAMESPACE

#endif // UI_SHOWERRORDIALOG_H

/********************************************************************************
**从读取UI文件'showerrordialog.UI'生成的表单
**
**创建人：Qt用户界面编译器版本5.4.1
**
**警告！重新编译UI文件时，此文件中所做的所有更改都将丢失！
********************************************************************************/
#ifndef用户界面
#定义用户界面对话框
#包括
#包括
#包括
#包括
#包括
#包括
#包括
QT_开始名称空间
类Ui\u对话框
{
公众：
QLabel*标签；
无效设置UI（QDialog*对话框）
{
如果（对话框->对象名（）.isEmpty（））
淋浴对话框->设置对象名称（QStringLiteral（“淋浴对话框”）；
对话框->调整大小（400,65）；
标签=新的QLabel（对话框）；
标签->设置对象名（QStringLiteral（“标签”）；
标签->设置几何（QRect（70,20,241,21））；
重译（对话）；
QMetaObject:：connectSlotsByName（对话框）；
}//setupUi
无效重新传输（QDialog*对话框）
{
淋浴对话框->设置窗口标题（QApplication:：translate（“淋浴对话框”，“淋浴对话框”，0））；
label->setText（QApplication:：translate（“对话框”，“请正确选择图像或分类器”，0））；
}//重新翻译
};
名称空间用户界面{
类淋浴器对话框：公共Ui\u淋浴器对话框
/********************************************************************************
** Form generated from reading UI file 'mysecondqtprojectHp7256.ui'
**
** Created by: Qt User Interface Compiler version 5.4.1
**
** WARNING! All changes made in this file will be lost when recompiling UI file!
********************************************************************************/

#ifndef MYSECONDQTPROJECTHP7256_H
#define MYSECONDQTPROJECTHP7256_H

#include <QtCore/QVariant>
#include <QtWidgets/QAction>
#include <QtWidgets/QApplication>
#include <QtWidgets/QButtonGroup>
#include <QtWidgets/QDialog>
#include <QtWidgets/QHeaderView>
#include <QtWidgets/QPushButton>
#include <QtWidgets/QVBoxLayout>
#include <QtWidgets/QWidget>

QT_BEGIN_NAMESPACE

class Ui_MySecondQtProjectClass
{
public:
    QPushButton *pushOK;
    QWidget *layoutWidget;
    QVBoxLayout *verticalLayout;
    QPushButton *pushImage;
    QPushButton *pushClassifier;

    void setupUi(QDialog *MySecondQtProjectClass)
    {
        if (MySecondQtProjectClass->objectName().isEmpty())
            MySecondQtProjectClass->setObjectName(QStringLiteral("MySecondQtProjectClass"));
        MySecondQtProjectClass->resize(600, 272);
        pushOK = new QPushButton(MySecondQtProjectClass);
        pushOK->setObjectName(QStringLiteral("pushOK"));
        pushOK->setGeometry(QRect(290, 220, 91, 31));
        layoutWidget = new QWidget(MySecondQtProjectClass);
        layoutWidget->setObjectName(QStringLiteral("layoutWidget"));
        layoutWidget->setGeometry(QRect(200, 100, 181, 91));
        verticalLayout = new QVBoxLayout(layoutWidget);
        verticalLayout->setSpacing(6);
        verticalLayout->setContentsMargins(11, 11, 11, 11);
        verticalLayout->setObjectName(QStringLiteral("verticalLayout"));
        verticalLayout->setContentsMargins(0, 0, 0, 0);
        pushImage = new QPushButton(layoutWidget);
        pushImage->setObjectName(QStringLiteral("pushImage"));

        verticalLayout->addWidget(pushImage);

        pushClassifier = new QPushButton(layoutWidget);
        pushClassifier->setObjectName(QStringLiteral("pushClassifier"));

        verticalLayout->addWidget(pushClassifier);


        retranslateUi(MySecondQtProjectClass);
        QObject::connect(pushImage, SIGNAL(clicked()), MySecondQtProjectClass, SLOT(on_pushImage_clicked()));
        QObject::connect(pushClassifier, SIGNAL(clicked()), MySecondQtProjectClass, SLOT(on_pushClassifier_clicked()));
        QObject::connect(pushOK, SIGNAL(clicked()), MySecondQtProjectClass, SLOT(on_pushOK_clicked()));

        QMetaObject::connectSlotsByName(MySecondQtProjectClass);
    } // setupUi

    void retranslateUi(QDialog *MySecondQtProjectClass)
    {
        MySecondQtProjectClass->setWindowTitle(QApplication::translate("MySecondQtProjectClass", "MySecondQtProject", 0));
        pushOK->setText(QApplication::translate("MySecondQtProjectClass", "OK", 0));
        pushImage->setText(QApplication::translate("MySecondQtProjectClass", "Browse for the Image", 0));
        pushClassifier->setText(QApplication::translate("MySecondQtProjectClass", "Browse for the classifier", 0));
    } // retranslateUi

};

namespace Ui {
    class MySecondQtProjectClass: public Ui_MySecondQtProjectClass {};
} // namespace Ui

QT_END_NAMESPACE

#endif // MYSECONDQTPROJECTHP7256_H

/********************************************************************************
** Form generated from reading UI file 'showerrordialogmU7256.ui'
**
** Created by: Qt User Interface Compiler version 5.4.1
**
** WARNING! All changes made in this file will be lost when recompiling UI file!
********************************************************************************/

#ifndef SHOWERRORDIALOGMU7256_H
#define SHOWERRORDIALOGMU7256_H

#include <QtCore/QVariant>
#include <QtWidgets/QAction>
#include <QtWidgets/QApplication>
#include <QtWidgets/QButtonGroup>
#include <QtWidgets/QDialog>
#include <QtWidgets/QHeaderView>
#include <QtWidgets/QLabel>

QT_BEGIN_NAMESPACE

class Ui_ShowErrorDialog
{
public:
    QLabel *label;

    void setupUi(QDialog *ShowErrorDialog)
    {
        if (ShowErrorDialog->objectName().isEmpty())
            ShowErrorDialog->setObjectName(QStringLiteral("ShowErrorDialog"));
        ShowErrorDialog->resize(400, 65);
        label = new QLabel(ShowErrorDialog);
        label->setObjectName(QStringLiteral("label"));
        label->setGeometry(QRect(70, 20, 241, 21));

        retranslateUi(ShowErrorDialog);

        QMetaObject::connectSlotsByName(ShowErrorDialog);
    } // setupUi

    void retranslateUi(QDialog *ShowErrorDialog)
    {
        ShowErrorDialog->setWindowTitle(QApplication::translate("ShowErrorDialog", "ShowErrorDialog", 0));
        label->setText(QApplication::translate("ShowErrorDialog", "Please properly select the Image or the classifier", 0));
    } // retranslateUi

};

namespace Ui {
    class ShowErrorDialog: public Ui_ShowErrorDialog {};
} // namespace Ui

QT_END_NAMESPACE

#endif // SHOWERRORDIALOGMU7256_H

#include "mysecondqtproject.h"
#include "showerrordialog.h"
#include <QFileDialog>

#include "objectdetect.h"

MySecondQtProject::MySecondQtProject(QWidget *parent)
    : QDialog(parent)
{
    ui.setupUi(this);
}

MySecondQtProject::~MySecondQtProject()
{

}

void MySecondQtProject::on_pushImage_clicked()
{
    image =
        QFileDialog::getOpenFileName(this, tr("open file"), "C:/Users/mankum93/Documents/Visual Studio 2013/Projects/BananaClassifierOpenCV/BananaClassifierOpenCV",
        "Images (*.png *.xpm *.jpg)");
}

void MySecondQtProject::on_pushClassifier_clicked()
{
    classifier =
        QFileDialog::getOpenFileName(this, tr("open file"), "C:/Users/mankum93/Documents/Visual Studio 2013/Projects/BananaClassifierOpenCV/BananaClassifierOpenCV",
        "XML files (*.xml)");
}

void MySecondQtProject::on_pushOK_clicked()
{
    accept();

    //Now lets compare for invalidity of any string:
    if (image.isNull() || classifier.isNull())
    {
        ShowErrorDialog dialog(this);
        dialog.exec();
    }
    else
    {
        //Convert Qstring to std::string
        String imageFileName = image.toLocal8Bit().constData();
        String cascadeFileName = classifier.toLocal8Bit().constData();

        // Now, we can go to main detection logic
        detectObject(imageFileName, cascadeFileName);
    }
}

/********************************************************************************
** Form generated from reading UI file 'mysecondqtproject.ui'
**
** Created by: Qt User Interface Compiler version 5.4.1
**
** WARNING! All changes made in this file will be lost when recompiling UI file!
********************************************************************************/

#ifndef UI_MYSECONDQTPROJECT_H
#define UI_MYSECONDQTPROJECT_H

#include <QtCore/QVariant>
#include <QtWidgets/QAction>
#include <QtWidgets/QApplication>
#include <QtWidgets/QButtonGroup>
#include <QtWidgets/QDialog>
#include <QtWidgets/QHeaderView>
#include <QtWidgets/QPushButton>
#include <QtWidgets/QVBoxLayout>
#include <QtWidgets/QWidget>

QT_BEGIN_NAMESPACE

class Ui_MySecondQtProjectClass
{
public:
    QPushButton *pushOK;
    QWidget *layoutWidget;
    QVBoxLayout *verticalLayout;
    QPushButton *pushImage;
    QPushButton *pushClassifier;

    void setupUi(QDialog *MySecondQtProjectClass)
    {
        if (MySecondQtProjectClass->objectName().isEmpty())
            MySecondQtProjectClass->setObjectName(QStringLiteral("MySecondQtProjectClass"));
        MySecondQtProjectClass->resize(600, 272);
        pushOK = new QPushButton(MySecondQtProjectClass);
        pushOK->setObjectName(QStringLiteral("pushOK"));
        pushOK->setGeometry(QRect(290, 220, 91, 31));
        layoutWidget = new QWidget(MySecondQtProjectClass);
        layoutWidget->setObjectName(QStringLiteral("layoutWidget"));
        layoutWidget->setGeometry(QRect(200, 100, 181, 91));
        verticalLayout = new QVBoxLayout(layoutWidget);
        verticalLayout->setSpacing(6);
        verticalLayout->setContentsMargins(11, 11, 11, 11);
        verticalLayout->setObjectName(QStringLiteral("verticalLayout"));
        verticalLayout->setContentsMargins(0, 0, 0, 0);
        pushImage = new QPushButton(layoutWidget);
        pushImage->setObjectName(QStringLiteral("pushImage"));

        verticalLayout->addWidget(pushImage);

        pushClassifier = new QPushButton(layoutWidget);
        pushClassifier->setObjectName(QStringLiteral("pushClassifier"));

        verticalLayout->addWidget(pushClassifier);


        retranslateUi(MySecondQtProjectClass);
        QObject::connect(pushImage, SIGNAL(clicked()), MySecondQtProjectClass, SLOT(on_pushImage_clicked()));
        QObject::connect(pushClassifier, SIGNAL(clicked()), MySecondQtProjectClass, SLOT(on_pushClassifier_clicked()));
        QObject::connect(pushOK, SIGNAL(clicked()), MySecondQtProjectClass, SLOT(on_pushOK_clicked()));

        QMetaObject::connectSlotsByName(MySecondQtProjectClass);
    } // setupUi

    void retranslateUi(QDialog *MySecondQtProjectClass)
    {
        MySecondQtProjectClass->setWindowTitle(QApplication::translate("MySecondQtProjectClass", "MySecondQtProject", 0));
        pushOK->setText(QApplication::translate("MySecondQtProjectClass", "OK", 0));
        pushImage->setText(QApplication::translate("MySecondQtProjectClass", "Browse for the Image", 0));
        pushClassifier->setText(QApplication::translate("MySecondQtProjectClass", "Browse for the classifier", 0));
    } // retranslateUi

};

namespace Ui {
    class MySecondQtProjectClass: public Ui_MySecondQtProjectClass {};
} // namespace Ui

QT_END_NAMESPACE

#endif // UI_MYSECONDQTPROJECT_H

/********************************************************************************
** Form generated from reading UI file 'showerrordialog.ui'
**
** Created by: Qt User Interface Compiler version 5.4.1
**
** WARNING! All changes made in this file will be lost when recompiling UI file!
********************************************************************************/

#ifndef UI_SHOWERRORDIALOG_H
#define UI_SHOWERRORDIALOG_H

#include <QtCore/QVariant>
#include <QtWidgets/QAction>
#include <QtWidgets/QApplication>
#include <QtWidgets/QButtonGroup>
#include <QtWidgets/QDialog>
#include <QtWidgets/QHeaderView>
#include <QtWidgets/QLabel>

QT_BEGIN_NAMESPACE

class Ui_ShowErrorDialog
{
public:
    QLabel *label;

    void setupUi(QDialog *ShowErrorDialog)
    {
        if (ShowErrorDialog->objectName().isEmpty())
            ShowErrorDialog->setObjectName(QStringLiteral("ShowErrorDialog"));
        ShowErrorDialog->resize(400, 65);
        label = new QLabel(ShowErrorDialog);
        label->setObjectName(QStringLiteral("label"));
        label->setGeometry(QRect(70, 20, 241, 21));

        retranslateUi(ShowErrorDialog);

        QMetaObject::connectSlotsByName(ShowErrorDialog);
    } // setupUi

    void retranslateUi(QDialog *ShowErrorDialog)
    {
        ShowErrorDialog->setWindowTitle(QApplication::translate("ShowErrorDialog", "ShowErrorDialog", 0));
        label->setText(QApplication::translate("ShowErrorDialog", "Please properly select the Image or the classifier", 0));
    } // retranslateUi

};

namespace Ui {
    class ShowErrorDialog: public Ui_ShowErrorDialog {};
} // namespace Ui

QT_END_NAMESPACE

#endif // UI_SHOWERRORDIALOG_H