OpenCV Installation Guide Common Prerequisities: C/C++ compiler (OpenCV is known to work with VS2005, VS2008, including Express Editions, and Mingw on Windows, GCC 4.x on Linux, MacOSX and other Unix-like systems). [Optional] Subversion client (e.g. command-line svn tool, SmartSVN, Tortoise SVN) [Optional] CMake 2.6 or later. CMake is now the only method of building OpenCV SVN snapshots on Windows