ubuntu16.04编译安装c++ opencv与vscode配置debug
一．编译安装c++ opencv
1.下载zip包
本文安装的是opencv3.4.3,下载链接，以Sources方式下载zip包．
2.安装依赖
sudo apt-get install build-essential
sudo apt-get install cmake git libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev
sudo apt-get install python-dev python-numpy libtbb2 libtbb-dev libjpeg-dev libpng-dev libtiff-dev libjasper-dev libdc1394-22-dev3.执行命令
cd ~/opencv-3.4.3 # 进入opencv文件夹
mkdir build # 创建build文件夹
cd build # 进入build文件夹
#cmake指令，如果没有特殊要求建议就选择默认的就可以
cmake -D CMAKE_BUILD_TYPE=Release -D CMAKE_INSTALL_PREFIX=/usr/local ..
#如果安装anconda遇到Makefile:160: recipe for target 'all' failed的报错，改为执行以下
cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D WITH_TBB=ON -D BUILD_SHARED_LIBS=OFF -D WITH_OPENMP=ON -D ENABLE_PRECOMPILED_HEADERS=OFF ..
make -j7 # 多线程执行make任务
# 最后一步，安装库文件
sudo make install
#安装完成如果没报错说明安装成功．
pkg-config --modversion opencv查看版本号
二.vscode配置进行debug
更详细的配置，参考这篇文章
1.代码
main.cpp
#include
#include
#include
#include"a.h"
using namespace std;
int main(){
cout<<"CV_VERSION"<readImg(imgPath);
delete A1;
A1 = nullptr;
return 0;
} a.h
#ifndef A_H_
#define A_H_
class A
{
public:
A(){}
~A(){}
void readImg(const char* path);
};
#endifa.cpp
#include
#include
#include "a.h"
using namespace std;
void A::readImg(const char* path)
{
cv::Mat img = cv::imread(path);
cout<<"==A img.cols=="< CMakeLists.txt
cmake_minimum_required(VERSION 2.6)
project(opencv)
add_definitions(-std=c++11)
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_BUILD_TYPE Debug)
set(OpenCV_DIR "/usr/local/include")
find_package(OpenCV 3.4.3 REQUIRED PATHS "/usr/local")
include_directories(OpenCV_INCLUDE_DIRS)
# set(OpenCV_DIR "/usr/include")
# find_package(OpenCV 2.4.9.1 REQUIRED PATHS "/usr/include")
# include_directories(OpenCV_INCLUDE_DIRS)
add_executable(main ${PROJECT_SOURCE_DIR}/main.cpp a.cpp)
target_link_libraries(main ${OpenCV_LIBS})
add_definitions(-O2 -pthread)
2.vscode配置
tasks.json
{
"tasks": [
{
"type": "shell",
"label": "C/C++: g++ build active file",
"command": "g++",
"args": [
// "-g", "-std=c++11", "${file}", "-o", "${fileDirname}/${fileBasenameNoExtension}",
"-g", "-std=c++11", "${fileDirname}/*.cpp", "-o", "${fileDirname}/${fileBasenameNoExtension}",
// "-I", "/usr/include",
// "-I", "/usr/include/opencv",
// "-I", "/usr/include/opencv2",
"-I", "/usr/local/include",
"-I", "/usr/local/include/opencv",
"-I", "/usr/local/include/opencv2",
"-L", "/usr/local/lib",
"-l", "opencv_imgcodecs",
"-l", "opencv_imgproc",
"-l", "opencv_dnn",
"-l", "opencv_features2d",
"-l", "opencv_flann",
"-l", "opencv_highgui",
"-l", "opencv_imgproc",
"-l", "opencv_ml",
"-l", "opencv_objdetect",
"-l", "opencv_photo",
"-l", "opencv_shape",
"-l", "opencv_stitching",
"-l", "opencv_superres",
"-l", "opencv_videoio",
"-l", "opencv_video",
"-l", "opencv_videostab",
"-l", "opencv_core"
],
"options": {
"cwd": "${workspaceFolder}"
},
"problemMatcher": [
"$gcc"
],
"group": {
"kind": "build",
"isDefault": true
}
}
],
"version": "2.0.0"
}launch.json
{
// Use IntelliSense to learn about possible attributes.
// Hover to view descriptions of existing attributes.
// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
"version": "0.2.0",
"configurations": [
{
"name": "g++ - Build and debug active file",
"type": "cppdbg",
"request": "launch",
"program": "${fileDirname}/${fileBasenameNoExtension}",
"args": [],
"stopAtEntry": false,
"cwd": "${workspaceFolder}",
"environment": [],
"externalConsole": false,
"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"
}
]
}c_cpp_properties.json
{
"configurations": [
{
"name": "Linux",
"includePath": [
"${workspaceFolder}/**",
// "/usr/include/opencv2",
// "/usr/include/opencv",
// "/usr/include",
"/usr/local/include/opencv2",
"/usr/local/include/opencv",
"/usr/local/include"
],
"defines": [],
"compilerPath": "/usr/bin/gcc",
"cStandard": "gnu11",
"cppStandard": "c++17",
"intelliSenseMode": "gcc-x64"
}
],
"version": 4
}3.出现一个bug
在main.cpp设置断点下按f5，开始debug
这里最开始出现一个bug,ImportError:lib***.so--cannot open shared object file: No such file or directory
通过设定软链接方式解决的:
3.1 找到文件
find / -name lib**.so (缺失的动态链接库)
3.2 建立软链接
ln -s /path/to/lib**.so /usr/lib
3.3 sudo ldconfig