Easily embed version information in software releases

Quite a few projects hardcode metadata in a file (or C/C++ headers), e.g. version.h with version info or defines. This can cause small problems when developers forget to update the version information inside these files. It is a lot easier to keep track of version information if your project uses git and makes use of tagging. This is one possible versioning scheme used for C/C++ releases. It depends on Make, a build automation tool, but the idea can be easily extended to other build tools such as CMake.

OpenCV on Arch Linux

Computer vision seems to be an interesting field to explore in. This is a simple tutorial on how to get OpenCV up and running on Arch Linux. A short C++ program is provided to confirm that OpenCV was successfully installed and compilation with OpenCV libraries actually works. To keep it simple, the provided code is quite minimal and will only load a picture, convert it to grayscale and then display both pictures in two separate windows.