vcpkg_opencv

Setup opencv using vcpkg package manager

Setup vcpkg: Unix

Prerequisites for Linux:

Git g++ >= 6

First, download and bootstrap vcpkg itself; it can be installed anywhere, but generally we recommend using vcpkg as a submodule for CMake projects.

$ git clone https://github.com/microsoft/vcpkg
$ ./vcpkg/bootstrap-vcpkg.sh

To install the libraries for your project, run:

$ ./vcpkg/vcpkg install [packages to install]

You can also search for the libraries you need with the search subcommand:

$ ./vcpkg/vcpkg search [search term]

In order to use vcpkg with CMake, you can use the toolchain file:

$ cmake -B [build directory] -S . -DCMAKE_TOOLCHAIN_FILE=[path to vcpkg]/scripts/buildsystems/vcpkg.cmake
$ cmake --build [build directory]

OR You can set CMAKE_TOOLCHAIN_FILE in CMakeLists.txt.

cmake_minimum_required(VERSION 3.9)
set( CMAKE_TOOLCHAIN_FILE "[path to vcpkg]/scripts/buildsystems/vcpkg.cmake"  )

Setup opencv using vcpkg from source

$ ./vcpkg/vcpkg search opencv

To install the opencv libraries for your project, run:

$ ./vcpkg/vcpkg install opencv

Building opencv from source will take much more time. You can use export command once you build opencv first time on your system to export opencv binaries. Exported binaries will be much easier to setup opencv on another system with same os, you just need to unzip exported zip file and link it to to CMakeLists.txt using DCMAKE_TOOLCHAIN_FILE.

Export opencv using vcpkg

$ ./vcpkg/vcpkg export pkg1 pkg2 --zip

$ ./vcpkg/vcpkg export opencv4 --zip

It will create zip file.

Binary Packages:

Ubuntu 18.04: opencv4

Using vcpkg exported opencv

To use exported opencv bundle in another system. First Download and unzip exported zip file.

Link CMAKE_TOOLCHAIN_FILE in CMakeLists.txt.

cmake_minimum_required(VERSION 3.9)
set( CMAKE_TOOLCHAIN_FILE "[path-to-vcpkg-export]/scripts/buildsystems/vcpkg.cmake" )

# And after that you can set your project name
# ......
# Find Package

find_package( OpenCV REQUIRED )
target_link_libraries( target_name ${OpenCV_LIBS}  )

Build Your project

$ mkdir -p "build" 
$ cd "build"

$ cmake ..
$ make -j$(nproc)