khulqu15 / smarteco

Simple OpenCV running example on Ubuntu and Visual Studio Code

This is the minimal check to validate opencv development C++ on Ubuntu 20.04 using Visual Studio Code

Installation

Install the g++ compiler

$ sudo apt install build-essential

Validate the installation

$ g++ --version
g++ (Ubuntu 9.3.0-17ubuntu1~20.04) 9.3.0
Copyright (C) 2019 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Then install OpenCV. I prefer prebuilt binaries

$ sudo apt install libopencv-dev 

The library files should be located in /usr/include/opencv4/opencv2 folder

The last step is to install *visual studio code via snap

sudo snap install --classic code

Usage

1. Launch `visual studio code'
2. press CTRL+SHIFT+X to launch extensions tab
3. Install C/C++ ,and C++ intellisense
4. Use CTRL+SHIFT+E to go to the explorer. Open src/testing.cpp
5. Click on CTRL+SHIFT+B to build the project. The code would compile in the tereminal window

 Executing task: C/C++: g++ build active file <

Starting build...
/usr/bin/g++ -g /home/wbadry/Desktop/simplecv/src/testing.cpp -o /home/wbadry/Desktop/simplecv/src/testing `pkg-config --cflags --libs opencv4`
Build finished successfully.

Terminal will be reused by tasks, press any key to close it.

6. In the terminal window, you may run the executable testing

$ ./testing

you should get an windows with gray image representing its green color plane