Linux下使用VSCode開發OpenCV程序

在Linux下使用VSCode開發OpenCV程序,並使用cmake編譯

創建項目

打開vscode,選擇File->Open Folder

VSCode配置

這里需要配置launch.json, tasks.json, c_cpp_properties.json三個文件;

launch.json配置

點擊左側Debug, 選擇Add Configure,就生成launch.json

使用下面腳本替換即可:

{
    // Use IntelliSense to learn about possible attributes.
    // Hover to view descriptions of existing attributes.
    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
    "version": "0.2.0",
    "configurations": [
        

        {
            "name": "(gdb) Launch",
            "type": "cppdbg",
            "request": "launch",
            "program": "${workspaceRoot}/${fileBasenameNoExtension}.main.out",
            "args": [],
            "stopAtEntry": false,
            "cwd": "${workspaceRoot}",
            "environment": [],
            "externalConsole": false,
            "MIMode": "gdb",
            "setupCommands": [
                {
                    "description": "Enable pretty-printing for gdb",
                    "text": "-enable-pretty-printing",
                    "ignoreFailures": true
                }
            ],
            "preLaunchTask": "build"
        }
    ]
  }

tasks.json配置

使用快捷鍵, Shirt+Ctrl+P,輸入

>Tasks:Configure Default Build Task

選擇后,即可打開tasks.json文件;

將以下內容拷貝進去即可:

{
    // Use IntelliSense to learn about possible attributes.
    // Hover to view descriptions of existing attributes.
    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
    "version": "0.2.0",
    "configurations": [
        

        {
            "name": "(gdb) Launch",
            "type": "cppdbg",
            "request": "launch",
            "program": "${workspaceRoot}/${fileBasenameNoExtension}.main.out",
            "args": [],
            "stopAtEntry": false,
            "cwd": "${workspaceRoot}",
            "environment": [],
            "externalConsole": false,
            "MIMode": "gdb",
            "setupCommands": [
                {
                    "description": "Enable pretty-printing for gdb",
                    "text": "-enable-pretty-printing",
                    "ignoreFailures": true
                }
            ],
            "preLaunchTask": "build"
        }
    ]
  }

c_cpp_properties.json配置

使用快捷鍵, Shirt+Ctrl+P,輸入

>C/C++: Edit Configurations(JSON)

選擇后,即可打開c_cpp_properties.json;

然后將下面內容拷貝進去,保存即可:

{
    "configurations": [
        {
            "name": "Linux",
            "includePath": [
                "${workspaceFolder}/**",
                "/usr/include",
                "/usr/local/include/**"
            ],
            "defines": [
                "_DEBUG",
                "UNICODE",
                "_UNICODE"
            ],
            "compilerPath": "/usr/bin/cpp",
            "cStandard": "c11",
            "cppStandard": "c++11",
            "intelliSenseMode": "gcc-x64"
        }
    ],
    "version": 4
}

編寫CMakeFiles .txt文件

工作目錄下新建CMakeFiles.txt文件,將下面內容拷貝進去:

cmake_minimum_required(VERSION 3.0)
project(cmake_usage)

set(cmake_minimum_required 11)

# for opencv
find_package(OpenCV 4.0.0 REQUIRED)
message("OpenCV version: ${OpenCV_VERSION}")

include_directories(${OpenCV_INCLUDE_DIRS})
link_directories(${OpenCV_LIB_DIR})

add_executable(${PROJECT_NAME} main.cpp)
target_link_libraries(${PROJECT_NAME} ${OpenCV_LIBS})

編寫main.cpp

工作目錄下新建main.cpp文件,將下面內容拷貝進去:

#include <iostream>
#include <stdlib.h>

#include <opencv2/highgui.hpp>
#include <opencv2/imgproc.hpp>

using namespace std;
using namespace cv;

int main(int argc, char** argv)
{
    // Load the image
    Mat img = imread("/home/chen/dataset/lena.jpg");

    cout << img.rows << endl;
    cout << img.cols << endl;
    return 0;
    
}

編譯程序

在工作目錄下打開終端:

mkdir build
cd build
cmake ..
make

執行:

./cmake_usage

即可打印輸出信息;