C++ 错误：未定义对'cv:：imread（std:：string const&；，int）'；

我是Qt新手，我有一个项目需要在Qt中配置OpenCV，我试图在Qt中运行一个简单的代码，但我遇到了这个错误“未定义对

cv:：imread（std:：string const&，int）的引用”

” 这是我的密码

#include "opencv2/imgproc/imgproc.hpp"
#include "opencv2/highgui/highgui.hpp"

using namespace cv;

int main(){
Mat src,gray;
src=imread("C:/Users/user/Desktop/wood-pattern.png",1);
imshow("gg",src);
cvWaitKey(0);
return 0;
}

我的source.pro是

#-------------------------------------------------
#
# Project created by QtCreator 2014-08-24T20:38:56
#
#-------------------------------------------------
INCLUDEPATH += C:\opencv\opencv2.4.9\build\include\
CONFIG(release,debug|release)
{
LIBS += C:\opencv\opencv2.4.9\build\x86\vc11\lib\opencv_calib3d249.lib \
        C:\opencv\opencv2.4.9\build\x86\vc11\lib\opencv_contrib249.lib \
        C:\opencv\opencv2.4.9\build\x86\vc11\lib\opencv_core249.lib \
        C:\opencv\opencv2.4.9\build\x86\vc11\lib\opencv_features2d249.lib \
        C:\opencv\opencv2.4.9\build\x86\vc11\lib\opencv_flann249.lib \
        C:\opencv\opencv2.4.9\build\x86\vc11\lib\opencv_gpu249.lib \
        C:\opencv\opencv2.4.9\build\x86\vc11\lib\opencv_highgui249.lib \
        C:\opencv\opencv2.4.9\build\x86\vc11\lib\opencv_imgproc249.lib \
        C:\opencv\opencv2.4.9\build\x86\vc11\lib\opencv_legacy249.lib \
        C:\opencv\opencv2.4.9\build\x86\vc11\lib\opencv_ml249.lib \
        C:\opencv\opencv2.4.9\build\x86\vc11\lib\opencv_objdetect249.lib \
        C:\opencv\opencv2.4.9\build\x86\vc11\lib\opencv_ts249.lib \
        C:\opencv\opencv2.4.9\build\x86\vc11\lib\opencv_video249.lib
        }
CONFIG(debug,debug|release)
       {
LIBS += C:\opencv\opencv2.4.9\build\x64\vc11\lib\opencv_calib3d249.lib \
        C:\opencv\opencv2.4.9\build\x64\vc11\lib\opencv_contrib249.lib \
        C:\opencv\opencv2.4.9\build\x64\vc11\lib\opencv_core249.lib \
        C:\opencv\opencv2.4.9\build\x64\vc11\lib\opencv_features2d249.lib \
        C:\opencv\opencv2.4.9\build\x64\vc11\lib\opencv_flann249.lib \
        C:\opencv\opencv2.4.9\build\x64\vc11\lib\opencv_gpu249.lib \
        C:\opencv\opencv2.4.9\build\x64\vc11\lib\opencv_highgui249.lib \
        C:\opencv\opencv2.4.9\build\x64\vc11\lib\opencv_imgproc249.lib \
        C:\opencv\opencv2.4.9\build\x64\vc11\lib\opencv_legacy249.lib \
        C:\opencv\opencv2.4.9\build\x64\vc11\lib\opencv_ml249.lib \
        C:\opencv\opencv2.4.9\build\x64\vc11\lib\opencv_objdetect249.lib \
        C:\opencv\opencv2.4.9\build\x64\vc11\lib\opencv_ts249.lib \
        C:\opencv\opencv2.4.9\build\x64\vc11\lib\opencv_video249.lib \
}
QT       += core

QT       -= gui

TARGET = Source
CONFIG   += console
CONFIG   -= app_bundle

TEMPLATE = app


SOURCES += main.cpp

我看到了所有的答案，但都不起作用。 我的Qt是32位，我的Windows是64位。

---

我认为我的配置是错误的。我遵循了许多教程，但它们不适用于OpenCV 2.4.9，所以请帮助我…

请参阅

pkg config OpenCV--libs的输出，找出您缺少的库，然后将它们添加到您的配置中

对我来说，图书馆的完整列表是

/usr/lib64/libopencv_calib3d.so.2.4.8
/usr/lib64/libopencv_contrib.so.2.4.8
/usr/lib64/libopencv_core.so.2.4.8
/usr/lib64/libopencv_features2d.so.2.4.8
/usr/lib64/libopencv_flann.so.2.4.8
/usr/lib64/libopencv_gpu.so.2.4.8
/usr/lib64/libopencv_highgui.so.2.4.8
/usr/lib64/libopencv_imgproc.so.2.4.8
/usr/lib64/libopencv_legacy.so.2.4.8
/usr/lib64/libopencv_ml.so.2.4.8
/usr/lib64/libopencv_nonfree.so.2.4.8    # you don't have this one
/usr/lib64/libopencv_objdetect.so.2.4.8
/usr/lib64/libopencv_photo.so.2.4.8      # this one
/usr/lib64/libopencv_stitching.so.2.4.8  # this one
/usr/lib64/libopencv_superres.so.2.4.8   # and this one
/usr/lib64/libopencv_ts.a
/usr/lib64/libopencv_video.so.2.4.8

不知道Windows，但如果它有
pkg config
，您应该能够通过添加

PKGCONFIG += opencv

到您的项目文件（假设您的OpenCV安装了正确的包配置文件，就像它在sane平台上一样）。
在我的例子中，这只是参数的顺序，请注意

g++ main.cpp -o main `pkg-config --libs --cflags opencv`

工作时

g++ -o main `pkg-config --libs --cflags opencv` main.cpp

因为后者定义了
main.cpp
在引用
main.cpp
之前需要什么。
实际上我的代码只需要highgui和imgpro库。我的windows是64位，qt是32位重要吗？我应该在source.pro中写些什么？我应该添加dll.a libs吗？就32位编译而言，库也必须是32位