how to install Visual Studio
Installing & Configuring with Visual Studio In this tutorial, I am using OpenCV 2.4.5 and Visual Studio 2012. But it is almost same for other versions of OpenCV and Visual Studio. There are 2 ways to install OpenCV into your computer. But for a beginner, the most suitable way is the installation by using the pre-built libraries. So, I am going to discuss how to install OpenCV by using pre-built libraries. First of all you should have a suitable IDE. I installed Visual Studio Express 2012 which is a free edition. (You will need to register by giving your email address to obtain the free product key). Then you have to download OpenCV from here . You can choose whatever version, you want. I choose OpenCV 2.4.5. Then double click the downloaded 'OpenCV-2.4.5.exe' file and it will be extracted to whatever location, you give. I gave C:\ as the extracting location. Then you will need to set up environment variables correctly to be able to use OpenCV. Steps to Set up Enviro...