[英]Error when linking OpenCV with Qt
當我運行我的代碼時,我收到如下錯誤:
D:\\ ubunto \\ OpenCV \\ opencv \\ build \\ include \\ opencv2 \\ imgproc \\ imgproc.hpp:50:錯誤:opencv2 / core / core.hpp:沒有這樣的文件或目錄
我不知道這是因為opencv鏈接還是其他原因。
你可以在下面找到我的代碼。
Form1.h
#ifndef FORM1_H
#define FORM1_H
#include <QDialog>
//#include<highgui.h>
//#include<core/core.hpp>
//#include<cvwimage.h>
#include<opencv.hpp>
#include<imgproc/imgproc.hpp>
//#include <opencv_modules.hpp>
//#include <video/video.hpp>
#include <highgui/highgui.hpp>
namespace Ui {
class Form1;
}
class Form1 : public QDialog
{
Q_OBJECT
public:
explicit Form1(QWidget *parent = 0);
QImage getQImageFromFrame(cv::Mat frame);
~Form1();
private slots:
void on_pushButton_clicked();
void updatePicture();
private:
Ui::Form1 *ui;
cv::Mat *mt;
cv::VideoCapture *video;
QTimer * timer;
QImage *img;
};
#endif // FORM1_H
Form1.cpp
#include "form1.h"
#include "ui_form1.h"
#include <QtCore>
#include <QtGui>
#include <QGraphicsAnchorLayout>
#include <QGraphicsScene>
#include <QGraphicsView>
#include <QGraphicsWidget>
#include "qimage.h"
#include <QFileDialog>
#include <QPixmap>
#include "qpixmap.h"
Form1::Form1(QWidget *parent) :
QDialog(parent),
ui(new Ui::Form1)
{
ui->setupUi(this);
}
QImage Form1::getQImageFromFrame(cv::Mat frame) {
//converts the color model of the image from RGB to BGR because OpenCV uses BGR
cv::cvtColor(frame, frame, CV_RGB2BGR);
return QImage((uchar*) (frame.data), frame.cols, frame.rows, frame.step, QImage::Format_RGB888);
}
Form1::~Form1()
{
delete ui;
}
void Form1::updatePicture()
{
video >> mt;
img = getQImageFromFrame(mt);
ui->label->setPixmap(QPixmap::fromImage(image));
}
void Form1::on_pushButton_clicked()
{
fileName = QFileDialog::getOpenFileName(this,
tr("Open Image"), "/elhandasya/Desktop", tr("Image Files (*.png *.jpg *.bmp)"));
//QPixmap pix(fileName);
video->open(filename);
timer = new QTimer(this);
connect(timer, SIGNAL(timeout()), this, SLOT(updatePicture());
timer->start(20);
}
這時我調用我的庫和文件
#-------------------------------------------------
#
# Project created by QtCreator 2013-12-16T09:23:28
#
#-------------------------------------------------
QT += core gui
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
TARGET = Video_Player
TEMPLATE = app
SOURCES += main.cpp\
form1.cpp
HEADERS += form1.h
FORMS += form1.ui
INCLUDEPATH += -I"D:\ubunto\OpenCV\opencv\build\include\opencv2\imgproc"
INCLUDEPATH += -I"D:\ubunto\OpenCV\opencv\build\include\opencv2\core"
INCLUDEPATH += -I"D:\ubunto\OpenCV\opencv\build\include\opencv2"
LIBS += -LD:\ubunto\OpenCV\opencv\build\x86\mingw\bin
-lopencv_core
-lopencv_imgproc
-lopencv_highgui
-lopencv_legacy
-lopencv_gpu
-lopencv_video
-lopencv_ml
-lopencv_contrib
#LIBS += D:\ubunto\emgu\emgucv-windows-x86 2.4.0.1717\lib
#-opencv_calib3d240
#-opencv_videostab240
#-opencv_calib3d240
#-opencv_contrib240
#-opencv_core240
#-opencv_features2d240
#-opencv_flann240
#-opencv_gpu240
#-opencv_highgui240
#-opencv_imgproc240
#-opencv_legacy240
#-opencv_ml240
#-opencv_nonfree240
#-opencv_objdetect240
#-opencv_photo240
#-opencv_stitching240
#-opencv_video240
首先,出現此錯誤是因為編譯器無法從#include <core.hpp>
找到core.hpp
到imgproc.hpp
。 我想你可以嘗試將你的INCLUDEPATH
改為:
INCLUDEPATH += -I"D:\\ubunto\\OpenCV\\opencv\\build\\include\\"
或 INCLUDEPATH += -I"D:\\ubunto\\OpenCV\\opencv\\build\\include\\opencv2\\imgproc"
INCLUDEPATH += D:\\ubunto\\OpenCV\\opencv\\build\\include\\opencv2\\core
第二,您將動態庫鏈接錯誤。 你應該寫:
LIBS += -L"D:\\ubunto\\OpenCV\\opencv\\build\\x86\\mingw\\bin" -lopencv_core -lopencv_imgproc
您應該按以下方式鏈接庫: -l<name_of_concrete_library>
我希望它對你有所幫助。
錯誤的斜線。 反斜杠\\
有特殊意義。 在qt for directory separator中使用常規斜杠/
(Qt會將其轉換為windows標准)。
INCLUDEPATH += D:/ubunto/OpenCV/opencv/build/include/opencv2
LIBS += D:/ubunto/OpenCV/opencv/build/x86/mingw/bin*.dll #wrong
這個LIBS +=...bin*.dll
也是錯誤的,請參閱替代答案。
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