我尝试在 Qt 项目中使用 openCV。但是如果我链接 openCV 的发布库,我的发布版本在启动时会立即崩溃。调试库允许程序启动,但当我尝试使用 openCV 函数时应用程序崩溃(众所周知,在 openCV 中混合发布/调试会导致一些崩溃)。
所以我做了一个简单的项目,但它甚至无法启动。发布和调试构建都会崩溃,并且使用调试器会导致出现一个小窗口,显示“意外的 CDB 退出”。
这是来源。
QT += core gui
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
TARGET = test_openCV
TEMPLATE = app
#flags to generate a .map file
QMAKE_LFLAGS_RELEASE +=/MAP
QMAKE_LFLAGS_RELEASE += /debug
SOURCES += main.cpp\
MainWindow.cpp
HEADERS += MainWindow.h
FORMS += MainWindow.ui
INCLUDEPATH += $$PWD
INCLUDEPATH += "D:/openCV/build/include"
#Switching between handbuild and the build I downloaded have no effect.
#I am sure the path are good. Quadra checked.
#LIBS += -L"D:/openCV/build/x64/vc11/lib"
LIBS += -L"D:/openCV/hand_build/lib/Release"
LIBS += -L"D:/openCV/hand_build/lib/Debug"
#disables the "fopen not secure" warning in openCV.
DEFINES += _CRT_SECURE_NO_WARNINGS
win32:CONFIG(release, debug|release): LIBS += -lopencv_core2413 -lopencv_highgui2413 -lopencv_imgproc2413
else:win32:CONFIG(debug, debug|release): LIBS += -lopencv_core2413d -lopencv_highgui2413d -lopencv_imgproc2413d
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主要.cpp:
#include "MainWindow.h"
#include <QApplication>
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
MainWindow w;
w.show();
return a.exec();
}
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主窗口.h:
#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include <QMainWindow>
#include <opencv/cv.h>
namespace Ui {
class MainWindow;
}
class MainWindow : public QMainWindow
{
Q_OBJECT
public:
explicit MainWindow(QWidget *parent = 0);
~MainWindow();
private:
Ui::MainWindow *ui;
};
#endif // MAINWINDOW_H
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和MainWindow.cpp:
#include "MainWindow.h"
#include "ui_MainWindow.h"
#include "opencv2/core.hpp"
#include "opencv2/highgui.hpp"
#include <QDebug>
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
//Removing this line will causes the program to start normally (guess it won't link the libs if nothing from openCV is used).
cv::Mat image;
}
MainWindow::~MainWindow()
{
delete ui;
}
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启动应用程序时我得到什么:
Starting D:\Colin\build_test_openCV\release\test_openCV.exe...
program suddenly ended
D:\Colin\build_test_openCV\release\test_openCV.exe crashed
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我在 Windows 7 / MSCV2012 openGL 64 位 / Qt 5.2.1 openGL 上工作。
有人看到我可能犯的错误吗?
小智 5
我的设置与您的类似,并且遇到了完全相同的问题。问题是对应的dll的路径没有定义。这些dll:
应该在 D:/openCV/hand_build/bin/ (或者可能是 D:/openCV/hand_build/bin/Release/)。添加另一行:
LIBS += -L"D:/openCV/hand_build/bin/Release/"
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应该管用。