在Qt Creator中使用OpenCV 2

在Qt Creator中使用OpenCV 2

首先，你要正确的设置环境变量。环境变量的设置方法参考这里。

然后，打开Qt项目中的.pro文件，添加如下代码

 

INCLUDEPATH+=D:\OpenCV\opencv\build\include\opencv2\

D:\OpenCV\opencv\build\include\opencv\

D:\OpenCV\opencv\build\include

CONFIG(release,debug|release)

{

LIBS+=D:\OpenCV\opencv\build\x86\vc10\lib\opencv_calib3d231.lib\

D:\OpenCV\opencv\build\x86\vc10\lib\opencv_contrib231.lib\

D:\OpenCV\opencv\build\x86\vc10\lib\opencv_core231.lib\

D:\OpenCV\opencv\build\x86\vc10\lib\opencv_features2d231.lib\

D:\OpenCV\opencv\build\x86\vc10\lib\opencv_flann231.lib\

D:\OpenCV\opencv\build\x86\vc10\lib\opencv_gpu231.lib\

D:\OpenCV\opencv\build\x86\vc10\lib\opencv_highgui231.lib\

D:\OpenCV\opencv\build\x86\vc10\lib\opencv_imgproc231.lib\

D:\OpenCV\opencv\build\x86\vc10\lib\opencv_legacy231.lib\

D:\OpenCV\opencv\build\x86\vc10\lib\opencv_ml231.lib\

D:\OpenCV\opencv\build\x86\vc10\lib\opencv_objdetect231.lib\

D:\OpenCV\opencv\build\x86\vc10\lib\opencv_ts231.lib\

D:\OpenCV\opencv\build\x86\vc10\lib\opencv_video231.lib

}

CONFIG(debug,debug|release)

{

LIBS+=D:\OpenCV\opencv\build\x86\vc10\lib\opencv_calib3d231d.lib\

D:\OpenCV\opencv\build\x86\vc10\lib\opencv_contrib231d.lib\

D:\OpenCV\opencv\build\x86\vc10\lib\opencv_core231d.lib\

D:\OpenCV\opencv\build\x86\vc10\lib\opencv_features2d231d.lib\

D:\OpenCV\opencv\build\x86\vc10\lib\opencv_flann231d.lib\

D:\OpenCV\opencv\build\x86\vc10\lib\opencv_gpu231d.lib\

D:\OpenCV\opencv\build\x86\vc10\lib\opencv_highgui231d.lib\

D:\OpenCV\opencv\build\x86\vc10\lib\opencv_imgproc231d.lib\

D:\OpenCV\opencv\build\x86\vc10\lib\opencv_legacy231d.lib\

D:\OpenCV\opencv\build\x86\vc10\lib\opencv_ml231d.lib\

D:\OpenCV\opencv\build\x86\vc10\lib\opencv_objdetect231d.lib\

D:\OpenCV\opencv\build\x86\vc10\lib\opencv_ts231d.lib\

D:\OpenCV\opencv\build\x86\vc10\lib\opencv_video231d.lib

}

注意，你的代码中的路径要根据OpenCV的具体安装路径做改变。

 

测试程序

 

#include<QtCore/QCoreApplication>

#include<opencv.hpp>

usingnamespacestd;

usingnamespacecv;

intmain(intargc,char*argv[])

{

QCoreApplicationa(argc,argv);

constchar*imagename="E:\\library\\Pictures\\lena.jpg";

//从文件中读入图像

Matimg=imread(imagename);

//如果读入图像失败

if(img.empty())

{

fprintf(stderr,"Cannotloadimage%s\n",imagename);

waitKey();

return-1;

}

//显示图像

imshow("image",img);

//此函数等待按键，按键盘任意键就返回

waitKey();

returna.exec();

}

 

用Qt Creator编译时，要选择MSVC2010的发布编译器。

运行结果

 

 

但我遇到了一个问题，当我选择Qt Creator的MSVC2010的调试编译器时，就会出错。希望有热心的朋友能帮我解决这个问题。