[macos]c++开发opencv_环境搭建

1.安装opencv
brew install opencv
2.测试安装
新建文件夹opencv1
新建test.cpp文件
[test.cpp]

#include "/usr/local/Cellar/opencv/4.5.3_2/include/opencv4/opencv2/opencv.hpp"
//这里改成自己的路径
using namespace cv;

int main() {
    Mat img = imread("/Users/workspace/Documents/C/opencv1/test1.png");    //引号内选一张自己计算机内的图片的路径
    imshow("deceye", img);    //打开一个窗口，显示图片
    waitKey(0);    //在键盘敲入字符前程序处于等待状态
    destroyAllWindows();    //关闭所有窗口
    return 0;
}

[CMakeLists.txt]

cmake_minimum_required(VERSION 3.5)

project(app-template)
SET(OPENCVPATH "/usr/local/Cellar/opencv4")

#查找OpenCV是否安装,这里是关键find_package()可以自动查找安装的库
find_package(OpenCV REQUIRED core highgui imgproc imgcodecs)
#if (OPENCV_FOUND) 
message(STATUS "找到OpenCV:\"${OpenCV_INCLUDE_DIRS}\",ENABLE_OPENCV宏已打开")

include_directories(${OpenCV_INCLUDE_DIRS})
link_directories(${OpenCV_INCLUDE_DIRS}/opencv2/lib)
#确定编译语言
set(CMAKE_CXX_STANDARD 11)
add_executable(app-template test.cpp)

target_link_libraries(app-template ${OpenCV_LIBS})#${OpenCV_LIBS}是自动生成的路径，写这个不会错

3.编译
命令行
cd ~/opencv1进入文件夹
（没安装cmake->brew install cmake)
cmake .
make

环境搭建完成！

4.参考
https://blog.csdn.net/ryuuei_1984/article/details/52209331?locationNum=2&fps=1

～好记性不如烂键盘～