天下苦vsc久矣！
不想用vs导致的)

本文教程以编译opencv4.10.0为例

先决条件

  • 安装vscode
  • 安装mingw并设置系统变量
  • 安装cmake并设置系统变量

cmake 编译 opencv 源代码

打开cmake gui

  • 选择源码文件夹位置
  • 选择build生成文件夹位置
  • Configure选择mingw

设置

  • 勾选BUILD_opencv_world 将多个链接文件合并成一个文件
  • 搜索py 取消勾选所有相关
  • 搜索java 取消勾选所有相关
  • 搜索test 取消勾选所有相关
  • 取消勾选WITH_IPP
  • 勾选WITH_OPENGL

Configure时
由于网络原因导致一些文件下载不了，需要手动下载Build目录下查看CMakeDownloadLog.txt文件手动下载目标文件并放入指定目录
我是如下四个文件

ade-0.1.2d.zip
opencv_videoio_ffmpeg.dll
opencv_videoio_ffmpeg_64.dll
ffmpeg_version.cmake

再次重新Configure

png

最后点击Generate
生成Makefile文件

cmd进入build文件夹
运行

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mingw32-make -j 8

编译完成后输入

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mingw32-make install

会在build目录下生成install文件夹
此文件夹为最终使用的文件夹，可以提取出来改个名字

.vscode配置文件设置

将目录修改为你实际目录

c_cpp_properties.json

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{
    "configurations": [
        {
            "name": "Win32",
            "includePath": [
                "${workspaceFolder}/**",
                "D:\\app\\openCV-minGW-4.10.0\\include",
                "D:\\app\\openCV-minGW-4.10.0\\include\\opencv2"
            ],
            "browse": {
               "path": [
                  //库文件
                  "D:\\app\\openCV-minGW-4.10.0\\x64\\mingw\\lib"
               ]
            },
            "defines": [
                "_DEBUG",
                "UNICODE",
                "_UNICODE"
            ],
            "compilerPath": "C:/app/mingw64/bin/g++",
            "cStandard": "c11",
            "cppStandard": "c++17",
            "intelliSenseMode": "gcc-x64"
        }
    ],
    "version": 4
}

launch.json

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{
    "version": "0.2.0",
    "configurations": [
        {
            "name": "opencv debuge",
            "type": "cppdbg",
            "request": "launch",
            "program": "${workspaceRoot}/Build/main.exe",
            "args": [],
            "stopAtEntry": false, //如果为 false，则调试直接运行。
            "cwd": "${workspaceFolder}",
            "environment": [],
            "externalConsole": false,//是否调用外部cmd
            "MIMode": "gdb",
            "miDebuggerPath": "C:\\app\\mingw64\\bin\\gdb.exe",//自己进行设置
            "setupCommands": [
                {
                    "description": "为 gdb 启用整齐打印",
                    "text": "-enable-pretty-printing",
                    "ignoreFailures": false
                }
            ],
            "preLaunchTask": "opencv"
        }
    ]
}

tasks.json

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{
    "version": "2.0.0",
    "tasks": [
        {
            "type": "shell",
            "label": "opencv",
            "command": "g++",
            "args": [
                "${workspaceRoot}/*.cpp",
                "-g","-std=c++17",
                "-o", "main.exe",
                "-I","D:\\app\\openCV-minGW-4.10.0\\include",
                "-I","D:\\app\\openCV-minGW-4.10.0\\include\\opencv2",
                "-L","D:\\app\\openCV-minGW-4.10.0\\x64\\mingw\\lib",
                "-l","libopencv_world4100"
            ],
            "options": {
                //生成文件放在这
               "cwd": "${workspaceRoot}/Build"
            },
            "problemMatcher": [
                "$gcc"
            ],
            "group": {
                "kind": "build",
                "isDefault": true
            }
        },
    ]
}

关键一步

方法一

直接将bin目录设置成系统变量Path

方法二

将bin目录下dll文件放入exe程序相同文件夹
在本案中也就是工作目录下Build文件夹内

测试程序

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#include<opencv2/opencv.hpp>

using namespace cv;
int main()
{
    Mat img=imread("your_img_path");
    imshow("image",img);
    waitKey();
    return 0;
}