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VSCode编写OpenCV
2022-08-05 05:25:00 【ProfSnail】
首先,需要安装MinGW编译器,支持编译C++代码。
安装MinGW编译器
将MinGW解压缩在某个文件夹中。例如:C:\software\mingw64
配置环境变量。
3.1 右键桌面此电脑,选择属性。
3.2 选择高级系统设置。
3.3 打开环境变量。
3.4 设置path,添加一条路径,为刚刚mingw的下bin文件夹的路径。C:\software\mingw64\bin。测试环境变量。win+r打开运行界面,输入cmd进入命令行,输入gcc -v,敲回车,查看gcc是否正常工作。
配置Vscode环境,支持编译C++
不用怎么配置,新建一个.cpp文件,用vscode打开,右下角提示是否安装推荐的C++扩展,安装之后就可以编译cpp文件了。
安装完成后,发现新增了如下的VSCode扩展。
下载opencv3
进入官网,https://opencv.org/releases/,下载opencv3,选择Windows进行下载。
安装到指定目录下即可。
下载Cmake
下载路径是:https://cmake.org/download/
将其解压到自定义目录下,我的路径为:C:\software\cmake\bin
点开cmake-gui.exe。
where is source code,选择C:\software\opencv3\opencv\sources
where is to build the binaries,是自己设置的文件夹,选择C:\software\opencv3\opencv\build\x64\mingw。
点击左下角的Configure,选择MinGW Makefiles,Specify native compiler。
Compiler,选择Mingw文件夹bin下的gcc.exe和g++.exe。路径是C:\software\mingw64\bin。
显示configure done。
一定注意这一步,如果不执行这一步,后面依赖的dll会缺失。
在执行完后,把关于python的都给取消勾选。勾选BUILD_opencv_world,WITH_OPENGL和BUILD_EXAMPLES,不勾选WITH_IPP、WITH_MSMF和ENABLE_PRECOMPILED_HEADERS(如果有的话),CPU_DISPATCH选空。
第二次点击Configure。
再点击Generate,最后Generate Done,就完成了。
make
cmd进入刚刚设置的文件夹C:\software\opencv3\opencv\build\x64\mingw,执行命令: minGW32-make -j 4。
make成功
继续执行minGW32-make install
配置OpenCV的环境变量。
配置Vscode环境,支持OpenCV3
任意创建一个文件夹,放置自己的代码。
最后的文件结构如下:
自己创建.vscode文件夹,自己创建c_cpp_properties.json、launch.json、tasks.json文件。自己创建Debugger文件夹。
c_cpp_properties.json
{
"configurations": [
{
"name": "win",
"includePath": [
"${workspaceFolder}/**",
"C:/software/opencv3/opencv/build/x64/mingw/include",
"C:/software/opencv3/opencv/build/x64/mingw/install/include/opencv2",
"C:/software/opencv3/opencv/build/x64/mingw/install/include"
],
"defines": [],
"compilerPath": "C:/software/mingw64/bin/g++.exe",
"cStandard": "c11",
"cppStandard": "c++17",
"intelliSenseMode": "${default}"
}
],
"version": 4
}
launch.json
{
"version": "0.2.0",
"configurations": [
{
"name": "opencv debuge",
"type": "cppdbg",
"request": "launch",
"program": "${workspaceFolder}//Debugger//${fileBasenameNoExtension}.exe",
//上面这个Debugger是我自己定义的,为了方便放置生成的exe文件
"args": [],
"stopAtEntry": false, //这里如果为 false,则说明调试直接运行。(反之则停止)
"cwd": "${workspaceFolder}",
"environment": [],
"externalConsole": true,//是否调用外部cmd
"MIMode": "gdb",
"miDebuggerPath": "C:/software/mingw64/bin/gdb.exe",//自己进行设置
"setupCommands": [
{
"description": "为 gdb 启用整齐打印",
"text": "-enable-pretty-printing",
"ignoreFailures": false
}
],
"preLaunchTask": "opencv3.5.2"
}
]
}
tasks.json
{
"version": "2.0.0",
"tasks": [
{
"type": "shell",
"label": "opencv3.5.2",
"command": "C:/software/mingw64/bin/g++.exe",
"args": [
"-g",
"${file}",
"-o",
"${workspaceFolder}//Debugger//${fileBasenameNoExtension}.exe",
//上面这个Debugger是我自己定义的,为了方便放置生成的exe文件
"C:/software/opencv3/opencv/build/x64/mingw/bin/libopencv_world3416.dll",
"-I",
"C:/software/opencv3/opencv/build/x64/mingw/install/include",
"-I",
"C:/software/opencv3/opencv/build/x64/mingw/install/include/opencv2",
],
"options": {
"cwd": "C:/software/mingw64/bin"
},
"problemMatcher": [
"$gcc"
],
"group": {
"kind": "build",
"isDefault": true
}
}
]
}
在C:\software\opencv3\opencv\build\x64\mingw\bin下找到libopencv_world3416.dll,复制到Debugger文件夹下。注意这个后缀3416是OpenCV的版本号,与自己安装的版本有关系。
在C:\software\opencv3\opencv\build\x64\vc15\bin下找到opencv_ffmpeg3416_64.dll,复制到Debugger文件夹下。
生成test.cpp文件,输入测试代码。
#include <opencv2/opencv.hpp>
#include <opencv2/highgui.hpp>
#include <iostream>
using namespace cv;
int main()
{
Mat img=imread("man.jpg");
imshow("image",img);
waitKey();
return 0;
}
能正常运行即可。
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