Opencv 3 installation on windows 10 and configure with visual studio 2012 Step1:Download windows version of opencv from www.opencv.org   Step2: Extract into a folder   Step3: Configure opencv with Visual studio   Set envirenment Vairable variable name: OPENCV3_DIR value: D:\\development\opencv\build\x86\vc11 Set Path: %OPENCV_DIR%\bin   Configure visual studio for opencv project C/C++   additional include