OpenCV_30_On_Ubuntu14.04

Description of the way install opencv 3.0 on ubuntu 14.04 and some programs on opencv OPENCV and Ubutu 14.04

• Install:
  • Step 1: Update and Upgrade ubuntu
    • $ sudo apt-get update
    • $ sudo apt-get upgrade
  • Step 2: Install our developer tools
    • $ sudo apt-get install build-essential cmake git pkg-config
  • Step 3: Softwares to load some image formats for opencv such as jpeg
    • $ sudo apt-get install libjpeg8-dev libtiff4-dev libjasper-dev libpng12-dev
  • Step 4: Install library for show the image to the screen after we can read the image on above step
    • $ sudo apt-get install libgtk2.0-dev
  • Step 5: Access individual frames
    • $ sudo apt-get install libavcodec-dev libavformat-dev libswscale-dev libv4l-dev
  • Step 6: Install libraries that optimize the routines of opencv
    • $ sudo apt-get install libatlas-base-dev gfortran
  • Step 7: Install pip, Python package manager
    • $ wget https://bootstrap.pypa.io/get-pip.py
    • $ sudo python get-pip.py
  • Step 8: Install virtual python and cv environment for each project we work on
    • $ sudo pip install virtualenv virtualenvwrapper
    • $ sudo rm -rf ~/.cache/pip
    • This step we must use everytime we want to work on python opencv projects:
      • $ export WORKON_HOME=$HOME/.virtualenvs $ source /usr/local/bin/virtualenvwrapper.sh $ source ~/bashrc $ mkvirtualenv cv
  • Step 9: Install python 2.7
    • $ sudo apt-get install python2.7-dev
    • $ pip install numpy # this is useful for transforming image into array for easily processing
  • Step 10: Pull opencv 3.0.0 from github
    • $ cd ~
    • $ git clone https://github.com/Itseez/opencv.git
    • $ cd opencv
    • $ git checkout 3.0.0
    • Pull opencv_contrib from github
    • $ cd ~
    • $ git clone https://github.com/Itseez/opencv_contrib.git
    • $ cd opencv_contrib
    • $ git checkout 3.0.0
    • $ cd ~/opencv
    • $ mkdir build
    • $ cd build
    • $ cmake -D CMAKE_BUILD_TYPE=RELEASE
      -D CMAKE_INSTALL_PREFIX=/usr/local
      -D INSTALL_C_EXAMPLES=ON
      -D INSTALL_PYTHON_EXAMPLES=ON
      -D OPENCV_EXTRA_MODULES_PATH=~/opencv_contrib/modules
      -D BUILD_EXAMPLES=ON ..
    • $ make -j4 #take advantages of 4 cores to speedup
  • Install Opencv:
    • $sudo make install
    • $sudo ldconfig
  • Step 11: Go to cv environment
    • $ cd ~/.virtualenvs/cv/lib/python2.7/site-packages/
    • $ ln -s /usr/local/lib/python2.7/site-packages/cv2.so cv2.so
  • Step 12: run test opencv
    • $ workon cv
    • $ python

      import cv2 cv2.version '3.0.0'

  • step 13: trial run example on opencv : python name.py