Windows CMake OpenCV C++

1.概述

Windows系统中使用Cmake配置OpenCV的C++环境

参考Link

2.下载并解压 opencv

选择Windows，不要选择Sources

3.下载并安装cmake

省略…

4.编辑系统环境变量

在Path 增加以下三项(根据安装位置修改路径)

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C:\Program Files\CMake\bin
D:\opencv\build\x64\vc15\bin
D:\opencv\build\x64\vc15\lib

5.新建文件夹及内部的文件

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HelloOpenCV
└─src
    └─main.cpp
CMakeLists.txt
1.jpg
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//main.cpp
#include <opencv2/opencv.hpp>
#include <iostream>

int main()
{
    std::string imagePath = "1.jpg";
    cv::Mat image = cv::imread(imagePath, cv::IMREAD_COLOR);
    cv::imshow("Display window", image);
    cv::waitKey(0);
    return 0;
}

根据安装位置修改 OpenCV_DIR 的值

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# CMakeLists.txt
cmake_minimum_required(VERSION 3.0)
project(HelloOpenCV)

set(OpenCV_DIR "D:/opencv/build/x64/vc15/lib")

find_package(OpenCV REQUIRED)

include_directories(${OpenCV_INCLUDE_DIRS})

add_executable(HelloOpenCV src/main.cpp)

target_link_libraries(HelloOpenCV ${OpenCV_LIBS})

6.Terminal 中编译

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mkdir build
cmake -B .\build\

Debug

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cmake --build .\build\
.\build\Debug\HelloOpenCV.exe

Release

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cmake --build .\build\ --config Release
.\build\Release\HelloOpenCV.exe