This is another one of those notes for myself which might be useful to you as well so I’m sharing it here. If you want to easily download and build OpenCV 4.3.0 with a simple PowerShell script, the this guide is for you.
The requirements are pretty straightforward:
- PowerShell (latest version)
- Visual Studio 2019 Community Edition
- Python 3.x (Install latest version as part of Visual Studio)
- numpy module for Python
- CMake
- Git
Now, simply paste the following into a text file with ps1 extension and run it using PowerShell (as an Administrator):
$env:Path += ";C:\Tools\CMake_64\bin"
$env:Path += ";C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python37_64"
$env:Path += "C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\"
Import-Module "C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\Common7\Tools\Microsoft.VisualStudio.DevShell.dll"
Enter-VsDevShell 534f7fd3
Set-Location "C:\some_build_folder"
git clone --branch 4.3.0 https://github.com/opencv/opencv.git
Set-Location opencv
mkdir build
Set-Location build
cmake ".." -G "Visual Studio 16 2019"
cmake --build "." --config Debug --target ALL_BUILD
cmake --build "." --config Release --target ALL_BUILD
cmake --build "." --config Debug --target INSTALL
cmake --build "." --config Release --target INSTALLYou can replace the cmake generator (Visual Studio 16 2019) with other generator types or replace OpenCV version number and reuse it with other projects as well.