Ubuntu系统中配置好对应的环境后就是对vscode进行环境配置

详情请参考我的文章：Ubuntu20.04配置opencv（c++）环境-CSDN博客

一、新建vscode工程（这里就不多解释）

二、配置VScode

VScode一共需要配置三个文件：c_cpp_properties.json，launch.json，tasks.json

1、配置 c_cpp_properties.json文件

按下“ctrl+shift+p”，搜索打开如下图所示配置：

即c_cpp_properties.json文件，往里面添加opencv4路径：

"/usr/local/include/opencv4"

这里的路径要替换为自己的路径

2、配置tasks.json文件：

3、配置launch.json文件

按下“ctrl+shift+p”，搜索launch.json打开如下图所示配置：

三、测试

在工作文件夹新建一个test.cpp,写一个测试代码，记得替换自己的图片路径

#include <opencv2/opencv.hpp>
#include <iostream>

using namespace std;
using namespace cv;

int main() 
{
    Mat img = imread("/home/xlh/c++code/1.png", 1);
    namedWindow("img", WINDOW_FREERATIO);
    imshow("img", img);
    waitKey(0);
    destroyAllWindows();
    return 0;
}

按下ctrl+shift+b”，可以生成对应的二进制文件，我们在cd到对应的工程文件夹

或者直接运行这段代码：Run C/C++ file

程序跑通，我们实现了在Ubuntu20.04中安装opencv并配置完成！

接下来就是去干opencv(c++)

附带三个文件的代码

c_cpp_properties.json

{
    "configurations": [
        {
            "name": "Linux",
            "includePath": [
                "${workspaceFolder}/**",

                "/usr/local/include/opencv4",
                "/usr/include/"

            ],
            "defines": [],
            "compilerPath": "/usr/bin/gcc",
            "cStandard": "c17",
            "cppStandard": "gnu++14",
            "intelliSenseMode": "linux-gcc-x64"
        }
    ],
    "version": 4
}

tasks.json

{
	"version": "2.0.0",
	"tasks": [
		{
			"type": "cppbuild",
			"label": "C/C++: g++ build active file",
			"command": "/usr/bin/g++",
			"args": [
				"-std=c++11",
				"-g",
				"${fileDirname}/*.cpp",
				"-o",
				"${fileDirname}/${fileBasenameNoExtension}",
				"-I",
				"${workspaceFolder}/",
				"-I","/usr/local/include/",
				"-I","/usr/local/include/opencv4/",
				"-I","/usr/local/include/opencv4/opencv2",
				"-L","/usr/local/lib",
				"/usr/local/lib/libopencv_*"
			],
			"options": {
				"cwd": "${fileDirname}"
			},
			"problemMatcher": [
				"$gcc"
			],
			"group": {
				"kind": "build",
				"isDefault": true
			},
			"detail": "Task generated by Debugger."
		}
	]
}

launch.json

{

    "version": "0.2.0",
    "configurations": [
        {
            "name": "g++ - Build and debug active file",
            "type": "cppdbg",
            "request": "launch",
            "program": "${fileDirname}/${fileBasenameNoExtension}",  
            "args": [],  
            "stopAtEntry": false,
            "cwd": "${fileDirname}",
            "environment": [],
            "externalConsole": true,   
            "MIMode": "gdb",
            "setupCommands": [
                {
                    "description": "Enable pretty-printing for gdb",
                    "text": "-enable-pretty-printing",
                    "ignoreFailures": true
                }
            ],
            "preLaunchTask": "C/C++: g++ build active file",
            "miDebuggerPath": "/usr/bin/gdb"
        }
    ]
}