generate an exe on QT5.2 and OpenCV 3.1 in static mod.

[ammarmoez]

Hello,
I am a beginner in QT, and I want to generate a static application using OpenCV.
I have already generated QT 5.2 in static modes, and opencv 3.1 also static mode using Mingw32.
I can generate a qt.exe application, by using opencv and even exported to other PC.
Once I added imread, i can't compile the code.
Here are my files ..

files.pro

QT       += core gui

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

TARGET = sans_titre4
TEMPLATE = app

message("* Using settings for Windows moez.")
INCLUDEPATH += "C:\\OOpenCV\\buildQT6\\install\\include" \
                "C:\\OOpenCV\\buildQT6\\install\\include\\opencv" \
                "C:\\OOpenCV\\buildQT6\\install\\include\\opencv2"


LIBS += -LC:\\OOpenCV\\buildQT6\\install\\x86\\mingw\\staticlib\
-lIlmImf \
-llibjasper \
-llibjpeg \
-llibpng \
-llibtiff \
-llibwebp \
-lzlib \
-lopencv_calib3d310 \
-lopencv_core310 \
-lopencv_features2d310 \
-lopencv_flann310\
-lopencv_highgui310 \
-lopencv_imgcodecs310 \
-lopencv_imgproc310 \
-lopencv_ml310 \
-lopencv_objdetect310 \
-lopencv_photo310 \
-lopencv_shape310 \
-lopencv_stitching310 \
-lopencv_superres310 \
-lopencv_ts310 \
-lopencv_video310 \
-lopencv_videoio310 \
-lopencv_videostab310 \


SOURCES += main.cpp\
        mainwindow.cpp

HEADERS  += mainwindow.h

FORMS    += mainwindow.ui

main.cpp

#include "mainwindow.h"
#include <QApplication>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    MainWindow w;
    w.show();

    return a.exec();
}

mainwindow.h

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>

#include <opencv2/core/core.hpp>
#include <opencv2/highgui/highgui.hpp>

namespace Ui {
class MainWindow;
}

class MainWindow : public QMainWindow
{
    Q_OBJECT

public:
    explicit MainWindow(QWidget *parent = 0);
    ~MainWindow();

private slots:
    void on_pushButton_clicked();

private:
    Ui::MainWindow *ui;
     cv::Mat m_zero ;
};

#endif // MAINWINDOW_H

mainwindow.cpp

#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QDebug>
#include <QFileDialog>
#include <QMessageBox>

#include <cv.h>


MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);
}

MainWindow::~MainWindow()
{
    delete ui;
}

void MainWindow::on_pushButton_clicked()
{
    m_zero = cv::Mat::zeros(10, 20, CV_32F);

    // Display dialog so the user can select a file
    QString filename = QFileDialog::getOpenFileName(this,
                                                    tr("Open Image"),
                                                    QDir::currentPath(),
                                                    tr("Files (*.png *.jpg *.tiff *.bmp)"));

    if (filename.isEmpty()) // Do nothing if filename is empty
        return;


    int Height = m_zero.size().height;
    QString::number(Height);

    qDebug() << Height ;
    QString Height_Qstring = QString::number(Height);

    m_zero = cv::imread("CSC_0113.JPG", CV_LOAD_IMAGE_COLOR);
    m_zero = cv::imread(filename.toStdString(), CV_LOAD_IMAGE_COLOR);

    QMessageBox msgBox;
    msgBox.setText(Height_Qstring + "   " + filename);
    msgBox.exec();


}

this the errors

grfmt_webp.cpp:-1: erreur : undefined reference to `WebPGetFeaturesInternal'
grfmt_webp.cpp:-1: erreur : undefined reference to `WebPDecodeBGRInto'
:-1: erreur : C:\OOpenCV\buildQT6\install\x86\mingw\staticlib\libopencv_imgcodecs310.a(grfmt_webp.cpp.obj): bad reloc address 0x130 in section `.text$_ZN2cv11WebPDecoder8readDataERNS_3MatE'
:-1: erreur : final link failed: Invalid operation
collect2.exe:-1: erreur : error: ld returned 1 exit status

if i comment this 2 lignes

 m_zero = cv::imread("CSC_0113.JPG", CV_LOAD_IMAGE_COLOR);
    m_zero = cv::imread(filename.toStdString(), CV_LOAD_IMAGE_COLOR);

The code works, and the MsgBox displays the height of the matrix m_zero
I have done several searches but I can not find a solution.

cordially

[SGaist]

Hi and welcome to devnet,

Don't have other warnings about the existence of some of the libraries you are linking to ? (e.g. libwebp)

[ammarmoez]

@SGaist thank for your response.

I have no other error. this a scren shot
https://drive.google.com/file/d/0B58fqnXmQyeSTUx5VmNlTGxBY2s/view?usp=drive_web

and the source code.
http://forum.qtfr.org/uploads/FileUpload/a9/a32a1992e83822a1765591fca0562b.rar

[ammarmoez]

In case when i use a Opencv non static library , i have this problem

"Le programme s'est terminé subitement." french
"The program ended suddenly." 

[SGaist]

Dod you have the OpenCV .dlls folder in your PATH environment variable ? If not then go to the Run part of the Project panel and add it there (do not do it system wide).

[ammarmoez]

@SGaist
yes all opencv files is included in the path.
After some research in log file, i think I have a problème with the génération of libopencv_imgcodecs310 and libopencv_imgproc310 files.

I'll keep you posted.