OpenCV installation for Ubuntu 12.04

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In this tutorial I will make you learn the steps to install OpenCV 2.4.3 in Ubuntu OS. For my project on visually impaired person I am using OpenCV 2.4.3 with Ubuntu 12.04 Operating system. OpenCV 2.4.3 have better compatibility with integrated cameras of laptop as well as latest operating system like Windows 7, Windows 8 and Windows 8.1 and in Linux domain Ubuntu itself . It provides good frame support and image processing operation and I would recommend you to use OpenCV 2.4.3. Still if you wish to use latest version of OpenCV (OpenCV 2.4.6 till Saturday, November 9, 2013) same steps can be carried out for newer version and you just need to write 2.4.6 in place of 2.4.3

To install OpenCV 2.4.3 on the Ubuntu 12.04 operating system, first install a developer environment to build OpenCV.

    sudo apt-get -y install build-essential cmake pkg-config

Install Image I/O libraries

    sudo apt-get -y install libjpeg62-dev

    sudo apt-get -y install libtiff4-dev libjasper-dev

Install the GTK dev library

    sudo apt-get -y install  libgtk2.0-dev

Install Video I/O libraries

  sudo apt-get -y install libavcodec-dev libavformat-dev libswscale-dev libv4l-dev

Optional - install support for Firewire video cameras

 sudo apt-get -y install libdc1394-22-dev

Optional - install video streaming libraries

 sudo apt-get -y install libxine-dev libgstreamer0.10-dev libgstreamer-plugins-base0.10-dev

Optional - install the Python development environment and the Python Numerical library

sudo apt-get -y install python-dev python-numpy

  

Optional - install the parallel code processing library (the Intel tbb library)

 sudo apt-get -y install libtbb-dev

Optional - install the Qt dev library

 sudo apt-get -y install libqt4-dev

Now download OpenCV 2.4.3 to wherever you want to compile the source. ‘mkdir’ creates a new folder and you can give a name as you wish for folder

 mkdir Gunjan_OpenCV

 cd Gunjan_OpenCV

 wget http://sourceforge.net/projects/opencvlibrary/files/opencv-unix/2.4.3/OpenCV-2.4.3.tar.bz2

tar -xvf OpenCV-2.4.3.tar.bz2

Create and build directory and configure OpenCV with cmake. Don't forget the ‘..’ part at the end of cmake command.

    cd OpenCV-2.4.3

   mkdir build

   cd build

cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D WITH_TBB=ON -D BUILD_NEW_PYTHON_SUPPORT=ON -D WITH_V4L=ON -D INSTALL_C_EXAMPLES=ON -D INSTALL_PYTHON_EXAMPLES=ON -D BUILD_EXAMPLES=ON -D WITH_QT=ON -D WITH_OPENGL=ON ..

Now compile it

    make

And finally install OpenCV

    sudo make install

Now you are ready to use OpenCV Image Library in your projects.

J THANK YOU J