#installing opencv

I have recently had to do multiple installs of OpenCV on a few systems and noticed that there wasn't one site that suited my needs for a quick install for everything I needed. I decided to fully document my steps and put this up here for future reference.

Installing OpenCV

This guide was written and compiled with the help from the following pages:

https://ffmpeg.org/trac/ffmpeg/wiki/UbuntuCompilationGuide

http://thebitbangtheory.wordpress.com/2011/10/23/how-to-install-opencv-2-3-1-in-ubuntu-11-10-oneiric-ocelot-with-python-support/

So, let's get started...

Remove any existing packages:

sudo apt-get remove ffmpeg x264 libvpx-dev libx264-dev

sudo apt-get update

Install base dependencies:

sudo apt-get install build-essential checkinstall git pkg-config cmake libpng12-0 libpng12-dev libpng++-dev libpng3 libpnglite-dev libfaac-dev libjack-jackd2-dev libjasper-dev libjasper-runtime libjasper1 libmp3lame-dev libopencore-amrnb-dev libopencore-amrwb-dev libsdl1.2-dev libtheora-dev libva-dev libvdpau-dev libvorbis-dev libx11-dev libxfixes-dev libxvidcore-dev texi2html yasm zlib1g-dev zlib1g-dbg zlib1g libgstreamer0.10-0 libgstreamer0.10-dev libgstreamer0.10-0-dbg gstreamer0.10-tools gstreamer0.10-plugins-base libgstreamer-plugins-base0.10-dev gstreamer0.10-plugins-good gstreamer0.10-plugins-ugly gstreamer0.10-plugins-bad gstreamer0.10-ffmpeg pngtools libtiff4-dev libtiff4 libtiffxx0c2 libtiff-tools libjpeg8 libjpeg8-dev libjpeg8-dbg libjpeg-progs libavcodec-dev libavcodec53 libavformat53 libavformat-dev libxine1-ffmpeg libxine-dev libxine1-bin libunicap2 libunicap2-dev libdc1394-22-dev libdc1394-22 libdc1394-utils swig python-numpy  libpython2.7 python-dev python2.7-dev libjpeg-progs libjpeg-dev libgtk2.0-0 libgtk2.0-dev gtk2-engines-pixbuf

-->x264

H.264 video encoder. The following commands will get the current source files, compile, and install x264.

cd

git clone git://git.videolan.org/x264

cd x264

./configure --enable-static

Note: I ran into trouble and had due to x64 error so I had to change configure line to add --enable-pic and --enable-shared.

./configure --enable-static --enable-pic --enable-shared

make

sudo checkinstall --pkgname=x264 --pkgversion="3:$(./version.sh | \

  awk -F'[" ]' '/POINT/{print $4"+git"$5}')" --backup=no --deldoc=yes \

  --fstrans=no --default

-->libvpx

VP8 video encoder and decoder.

cd

git clone http://git.chromium.org/webm/libvpx.git

cd libvpx

./configure

make

sudo checkinstall --pkgname=libvpx --pkgversion="1:$(date +%Y%m%d%H%M)-git" --backup=no --deldoc=yes --fstrans=no --default

-->ffmpeg

cd

git clone --depth 1 git://source.ffmpeg.org/ffmpeg

cd ffmpeg

./configure --enable-gpl --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-version3 --enable-x11grab

Note: I ran into trouble and had due to x64 error so I had to change configure line to add --enable-pic and --enable-shared.

./configure --enable-gpl --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid --enable-nonfree --enable-postproc --enable-version3 --enable-x11grab --enable-pic --enable-shared

make

sudo checkinstall --pkgname=ffmpeg --pkgversion="5:$(date +%Y%m%d%H%M)-git" --backup=no --deldoc=yes --fstrans=no --default

hash x264 ffmpeg ffplay ffprobe

-->v4l

Download and install v4l – download any recent stable snapshot from http://www.linuxtv.org/downloads/v4l-utils/ (I used v4l-utils-0.8.5.tar.bz2) and extract it to a folder. Then enter the folder and build it:

make

sudo make install

-->OpenCV

mkdir release

cd release

cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D BUILD_PYTHON_SUPPORT=ON -D BUILD_EXAMPLES=ON ..

make

sudo make install

-->Add OpenCV libs to system path

vim ~/.bashrc

export LD_LIBRARY_PATH=/usr/local/lib

sudo vim /etc/bash.bashrc

PKG_CONFIG_PATH=$PKG_CONFIG_PATH:/usr/local/lib/pkgconfig

export PKG_CONFIG_PATH

-->Check python install

python

import cv2

-->Compile all samples

chmod +x build_all.sh

./build_all.sh

-->To compile using pkg-config

g++ `pkg-config --cflags opencv` my_code.cpp -o my_code `pkg-config --libs opencv`

-->cvBlob

Grab the latest version from: http://code.google.com/p/cvblob/downloads/list

At the time of writing the current version is here: http://cvblob.googlecode.com/files/cvblob-0.10.3-src.tgz

cmake . -DOpenCV_DIR=<path_to_OpenCV>

Note:cmake . -DOpenCV_DIR=/usr/local/include/opencv

make

sudo make install

Output should be:

Install the project...

-- Install configuration: "Release"

-- Installing: /usr/local/lib/pkgconfig/cvblob.pc

-- Installing: /usr/local/include/cvblob.h

-- Installing: /usr/local/lib/libcvblob.so