[开发工具]为vs code中C++配置opencv

前提:
1.windows系统
2.软件vs code
3.opencv version: 4.5.2
4.gcc8.1.0(minGW中的)
5.cmake version: 3.17.0-rc3
步骤:
1.下载minGW,并将minGW的文件路径加入系统环境变量Path

下载minGW网址:
https://sourceforge.net/projects/mingw-w64/files/mingw-w64/mingw-w64-release/
2.下载opencv官网源文件,并解压
vs code中C++使用opencv,需要自己编译源文件
3.下载最新版cmake,并添加环境变量

4.在cmake-3.17.0-rc3-win64-x64\bin中打开cmake-gui.exe,并配置

图中第一行将第2步骤中解压的源文件路径填入
(应和D:/studying/language/C++/libraries/opencv-4.5.2相似,且opencv-4.5.2文件夹中没有除源文件的其他无关文件,只要解压后,别往里面加东西就行)
图中第二行填入你想要将编译后的文件放入的文件夹路径
5.点击configure,选择MinGW Makefiles生成器,使用默认本地编译器(use the default native compilers),最后点击Finish
6.点击Generate,等待.若出错,则点击configure,接着等待.configure完成后(没问题后,进行后面的操作.若有问题找出原因),点击Generate.
(确保Generate后任何警告和错误)
7.找到第4步骤中,填入的文件夹路径,使用shift+右键在Power Shell中打开文件夹.接着在power shell中运行minGW32-make(不需要任何参数).等待(若在power shell中进度条太长时间没有动,点击鼠标右键试试).
完成标志: 进度条显示为100%,且等待输入下一个命令(不要关闭窗口)
8.运行minGW32-make install,生成install文件夹
9.配置vscode
c_cpp_properties.json

{
    "configurations": [
        {
            "name": "Win32",
            "includePath": [
                "${default}",
                "D:\\studying\\language\\C++\\libraries\\opencv452\\install\\include",
                "D:\\studying\\language\\C++\\libraries\\opencv452\\install\\include\\opencv2"
            ],
            "defines": [
                "_DEBUG",
                "UNICODE",
                "_UNICODE"
            ],
            "compilerPath": "D:/studying/language/mingw64/bin/g++.exe",
            "intelliSenseMode": "windows-gcc-x64",
            "cppStandard": "c++17"
        }
    ],
    "version": 4
}

launch.json

"version": "0.2.0",
    "configurations": [
        {
            "name": "g++.exe - 生成和调试活动文件",
            "type": "cppdbg",
            "request": "launch",
            "program": "${fileDirname}\\${fileBasenameNoExtension}.exe",
            "args": [],
            "stopAtEntry": false,
            "cwd": "D:/studying/language/mingw64/bin",
            "environment": [],
            "externalConsole": false,
            "MIMode": "gdb",
            "miDebuggerPath": "D:\\studying\\language\\mingw64\\bin\\gdb.exe",
            "setupCommands": [
                {
                    "description": "为 gdb 启用整齐打印",
                    "text": "-enable-pretty-printing",
                    "ignoreFailures": true
                }
            ],
            "preLaunchTask": "C/C++: g++.exe 生成活动文件"
        }
    ]
}

tasks.json

{
    "tasks": [
        {
            "type": "cppbuild",
            "label": "C/C++: g++.exe 生成活动文件",
            "command": "D:/studying/language/mingw64/bin/g++.exe",
            "args": [
                "-g",
                "${file}",
                "-o",
                "${fileDirname}\\${fileBasenameNoExtension}.exe",
                
                "-std=c++11",
            
                "-I","D:\\studying\\language\\C++\\libraries\\opencv452\\install\\include",
                "-I","D:\\studying\\language\\C++\\libraries\\opencv452\\install\\include\\opencv2",

                "-L","D:\\studying\\language\\C++\\libraries\\opencv452\\lib",
                "-l", "libopencv_calib3d452",
                "-l", "libopencv_core452",
                "-l", "libopencv_dnn452",
                "-l", "libopencv_features2d452",
                "-l", "libopencv_flann452",
                "-l", "libopencv_gapi452",
                "-l", "libopencv_highgui452",
                "-l", "libopencv_imgcodecs452",
                "-l", "libopencv_imgproc452",
                "-l", "libopencv_ml452",
                "-l", "libopencv_objdetect452",
                "-l", "libopencv_photo452",
                "-l", "libopencv_stitching452",
                "-l", "libopencv_video452",
                "-l", "libopencv_videoio452"

            ],
            "options": {
                "cwd": "D:\\studying\\language\\C++\\pro"
            },
            "problemMatcher": [
                "$gcc"
            ],
            "group": {
                "kind": "build",
                "isDefault": true
            },
            "detail": "调试器生成的任务。"
        }
    ],
    "version": "2.0.0"
}

测试源码:

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

//opencv头文件 
#include "opencv2/core.hpp"
#include "opencv2/highgui.hpp"
#include "opencv2/imgproc.hpp"
#include "opencv2/imgproc.hpp"
using namespace cv;
int blurAmount = 15; //保存滑动条的位置值
static void onChange(int pos,void* userInput);
static void onMouse(int event,int x,int y ,int,void *userInput);

int main()
{
    Mat airplane1 = imread("D:\\studying\\language\\C++\\pro\\opencv_test\\wallhaven-pkk69p.jpg");  
	namedWindow("origin_img");
    namedWindow("airplane1");
    imshow("origin_img",airplane1);
    createTrackbar("airplane1","airplane1",&blurAmount,30,onChange,&airplane1);
    setMouseCallback("airplane1",onMouse,&airplane1);

    onChange(blurAmount,&airplane1);
    waitKey(0);
    destroyWindow("airplane1");

    return 0;
}

static void onChange(int pos,void*userData)
{
    if (pos <=0)
        return;
    Mat imgBlur;
    Mat *img = (Mat*)userData;
    cv::blur(*img,imgBlur,Size(pos,pos));

    //Display
    imshow("airplane1",imgBlur);
}

static void onMouse(int event, int x, int y,int, void *userInput)
{
    if(event != EVENT_LBUTTONDOWN)
        return;
    Mat *img = (Mat*)userInput;

    //绘图
    //cvCircle(img,Point(x,y),10,Scalar(0,255,0),3);

    //调用模糊图像方法
    onChange(blurAmount, img);
}

参考:
1.win10下VSCode配置opencv4.4.0（超详细教程，亲测有效）
2.VScode中配置C++的Opencv库