Mac10.11 + Qt5.7 + OpenCV2.4.13

准备工作

1. ​​QT官网​​下载安装Qt5.7.
2. ​​Homebrew​​ 官网，安装homebrew.
3. ​​iTerm​​ 官网下载安装iTerm2.
4. 启动iTerm

 $ brew update 
 $ brew info opencv 
 $ brew tap homebrew/science 
 $ brew install opencv --with-qt5 --with-ffmpeg --with-opengl --with-opencl

Qt 测试项目helloCV

helloCV.pro 末尾添加以下代码：

INCLUDEPATH += /usr/local/include
INCLUDEPATH += /usr/local/include/opencv
INCLUDEPATH += /usr/local/include/opencv2

LIBS += -L/usr/local/lib \
     -lopencv_core \
     -lopencv_highgui \
     -lopencv_imgproc \

main.cpp 代码如下：

//#include "mainwindow.h"
//#include <QApplication>
//int main(int argc, char *argv[])
//{
//    QApplication a(argc, argv);
//    MainWindow w;
//    w.show();
//    return a.exec();
//}

#include <iostream>
#include <string>
#include <vector>
using namespace std;

#include <opencv2/core/core.hpp>
#include <opencv2/highgui/highgui.hpp>
#include <opencv2/imgproc/imgproc.hpp>
using namespace cv;

int main(int argc, char *argv[])
{
    Mat src = imread("/Users/tianzhaixing/Pictures/jurassic_world.jpg");
    if(src.empty())
    {
        cerr << "Please check the path of input image!" << endl;
        return -1;
    }
    const string winname = "src";
    namedWindow(winname, WINDOW_AUTOSIZE);
    imshow(winname, src);
    waitKey(0);
    destroyWindow(winname);
    return 0;
}

问题

dyld: Symbol not found: __cg_jpeg_resync_to_restart
  Referenced from: /System/Library/Frameworks/ImageIO.framework/Versions/A/ImageIO
  Expected in: /usr/local/lib/libjpeg.8.dylib
 in /System/Library/Frameworks/ImageIO.framework/Versions/A/ImageIO
程序异常结束。

参考

[1] ​​install-opencv-3-on-yosemite-osx-10-10-x​​​
[2] ​​​configuring-qt-for-opencv-on-osx​​