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系统 mac  qt 库 5.8 ide 4.21 opencv 3.4.1

根据网上搭建时老是报这个错

解决方案 报那个错的原因就几个  1.没有实现函数 这个可以排除。
2.没有包含库 对就是这个 但不是只包含网上说的那几个 得全包含（反正包含到不报错为止）

macx{
INCLUDEPATH += /usr/local/opt/opencv@3/include
LIBS += -L/usr/local/Cellar/opencv/3.4.1/lib -lopencv_stitching -lopencv_superres -lopencv_videostab -lopencv_aruco -lopencv_bgsegm -lopencv_bioinspired -lopencv_ccalib  -lopencv_dnn -lopencv_dpm -lopencv_fuzzy -lopencv_line_descriptor -lopencv_optflow -lopencv_plot -lopencv_reg -lopencv_saliency -lopencv_stereo -lopencv_structured_light -lopencv_rgbd -lopencv_surface_matching -lopencv_tracking -lopencv_datasets -lopencv_text -lopencv_face -lopencv_xfeatures2d -lopencv_shape -lopencv_video -lopencv_ximgproc -lopencv_calib3d -lopencv_features2d -lopencv_flann -lopencv_xobjdetect -lopencv_objdetect -lopencv_ml -lopencv_xphoto -lopencv_highgui -lopencv_videoio -lopencv_imgcodecs -lopencv_photo -lopencv_imgproc -lopencv_core
}

#-------------------------------------------------## Project created by QtCreator 2018-03-10T18:59:53##-------------------------------------------------QT       += core gui

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

TARGET = testopencv
TEMPLATE = app# The following define makes your compiler emit warnings if you use# any feature of Qt which as been marked as deprecated (the exact warnings# depend on your compiler). Please consult the documentation of the# deprecated API in order to know how to port your code away from it.DEFINES += QT_DEPRECATED_WARNINGS# You can also make your code fail to compile if you use deprecated APIs.# In order to do so, uncomment the following line.# You can also select to disable deprecated APIs only up to a certain version of Qt.#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0SOURCES += main.cpp\
        mainwindow.cpp

HEADERS  += mainwindow.h

FORMS    += mainwindow.ui#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 \##     -lopencv_calib3d#LIBS += -L/usr/local/lib# LIBS +=-lopencv_core  -lopencv_highgui  -lopencv_imgproc  -vmacx{
 INCLUDEPATH += /usr/local/opt/opencv@3/include
LIBS += -L/usr/local/Cellar/opencv/3.4.1/lib -lopencv_stitching -lopencv_superres -lopencv_videostab -lopencv_aruco -lopencv_bgsegm -lopencv_bioinspired -lopencv_ccalib  -lopencv_dnn -lopencv_dpm -lopencv_fuzzy -lopencv_line_descriptor -lopencv_optflow -lopencv_plot -lopencv_reg -lopencv_saliency -lopencv_stereo -lopencv_structured_light -lopencv_rgbd -lopencv_surface_matching -lopencv_tracking -lopencv_datasets -lopencv_text -lopencv_face -lopencv_xfeatures2d -lopencv_shape -lopencv_video -lopencv_ximgproc -lopencv_calib3d -lopencv_features2d -lopencv_flann -lopencv_xobjdetect -lopencv_objdetect -lopencv_ml -lopencv_xphoto -lopencv_highgui -lopencv_videoio -lopencv_imgcodecs -lopencv_photo -lopencv_imgproc -lopencv_core
}

//#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/allenboy/Desktop/allen.jpeg"");//    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);//    cv::Mat img = cv::imread(""/Users/tianzhaixing/Pictures/jurassic_world.jpg"");//     cv::imshow(""Image"", img);//     cv::waitKey(0);    VideoCapture capture(0);                        //打开摄像头
     Mat frame;                                      //定义储存图像的mat类型变量     //double rate = capture.get(CAP_PROP_FPS);      //定义帧率，如果是打开视频文件     Size videoSize(capture.get(CAP_PROP_FRAME_WIDTH), capture.get(CAP_PROP_FRAME_HEIGHT));     VideoWriter writer(""Users/allenboy/Desktop/VideoTest.avi"", CV_FOURCC('M', 'J', 'P', 'G'), 20, videoSize);     //(5个参数分别为文件名，视频格式，帧率，帧尺寸，bool isColortrue（默认的）如果想保存一个彩色视频，这个值为true，否则为false。)20相当于rate，表示帧率     if (!writer.isOpened())                         //测试是否打开写文件成功
     {
         cout << ""写入视频文件打开失败！"" << endl;         return -1;
     }     int kernel=0;                                  //定义一个变量存储内核值     for (int i = 0; i <200;i++)                    //拍摄一个10秒的视频，因为上面定义的帧率为20，所以循环200次正好是10秒
     {
         capture >> frame;                          //读入帧
         imshow(""原图"", frame);                     //显示

         kernel = (i /10)+1;                        //设置滤波的内核尺寸kernel，使逐渐增大，内核最小为1，不能为0
         blur(frame, frame, Size(kernel,kernel));   //采用一次均值滤波
         writer << frame;                           //写入视频文件         //cvtColor(frame, frame, CV_BGR2GRAY);     //彩色转为灰度图
         imshow(""中值滤波图"", frame);               //显示

         waitKey(30);                               //等待显示

     }    return 0;
}

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