Installing OpenCV on Debian Linux

OpenCV_DebianIn this post I will describe the process of installing OpenCV (both versions 2.4.2 and 2.4.3) on Debian Linux (especially Debian-6). After installing, we will do some tests to verify the installation and also see some examples. As I was trying to install OpenCV on Debian I found that although there is lot of information on similar topics (see the references at the end), I still had to dig around a bit to understand the process completely. Some of the excellent guides are now outdated. Also, I found a few that have all the “what to do” but not “why to do”. Then as I started jotting down my own notes into my OneNote notebook, I realized that I should share these notes with others who are interested. I hope to update this document as I find more useful information in future.

1. Before installing the Prerequisites:

It is recommended [Reference 2] that you update and upgrade your current system before installing OpenCV. You can do this from the terminal using the following two commands:

sudo apt-get update
sudo apt-get upgrade

Continue reading