Image Recognition Method OpenCV on the Raspberry Pi

Setup on Raspian Linix

Pre-compiled: If it works, do this... It prolly won't, but it's worth a shot.

sudo apt-get install libopencv-dev

From Source: as per https://ariandy1.wordpress.com/2013/02/13/raspberry-pi-rasbian-opencv/

1. Make sure everything is up to date
   sudo apt-get update
   sudo apt-get upgrade
   sudo rpi-update
    
2. Install the tools (probably already installed)

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

3. Paste all the folowing dependancy installations into the terminal window:

   sudo apt-get -y install build-essential
   sudo apt-get -y install cmake
   sudo apt-get -y install pkg-config
   sudo apt-get -y install libpng12-0 libpng12-dev libpng++-dev libpng3
   sudo apt-get -y install libpnglite-dev libpngwriter0-dev libpngwriter0c2
   sudo apt-get -y install zlib1g-dbg zlib1g zlib1g-dev
   sudo apt-get -y install libjasper-dev libjasper-runtime libjasper1
   sudo apt-get -y install pngtools libtiff4-dev libtiff4 libtiffxx0c2 libtiff-tools
   sudo apt-get -y install libjpeg8 libjpeg8-dev libjpeg8-dbg libjpeg-prog
   sudo apt-get -y install libavcodec53 libavcodec-dev libavformat53 libavformat-dev
   sudo apt-get -y install libavutil51 libavutil-dev libswscale2 libswscale-dev
   sudo apt-get -y install libgstreamer0.10-0-dbg libgstreamer0.10-0 libgstreamer0.10-dev
   sudo apt-get -y install libxine1-ffmpeg libxine-dev libxine1-bin
   sudo apt-get -y install libunicap2 libunicap2-dev
   sudo apt-get -y install libdc1394-22-dev libdc1394-22 libdc1394-utils
   sudo apt-get -y install swig
   sudo apt-get -y install python-numpy
   sudo apt-get -y install libpython2.6 python-dev python2.6-dev
   sudo apt-get -y install libjpeg-progs libjpeg-dev
   sudo apt-get -y install libgstreamer-plugins-base0.10-dev
   sudo apt-get -y install libqt4-dev libgtk2.0-dev
    
   

4. Manually install x264:

   sudo apt-get remove x264 x264-dev
    
   wget ftp://ftp.videolan.org/pub/videolan/x264/snapshots/x264-snapshot-20120528-2245-stable.tar.bz2
   tar -xvf x264-snapshot-20120528-2245-stable.tar.bz2
   cd x264-snapshot-20120528-2245-stable/
   ./configure --enable-shared --enable-pic
   make
   sudo make install
   cd ..
    
   

5. Manually install ffmpeg: (note the configure line below is entered all on one line.)

   sudo apt-get remove ffmpeg
    
   wget http://ffmpeg.org/releases/ffmpeg-0.11.1.tar.bz2
   echo "Installing ffmpeg"
   tar -xvf ffmpeg-0.11.1.tar.bz2
   cd ffmpeg-0.11.1/
   ./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-shared --enable-pic
   make
   sudo make install
   cd ..
    
   

6. Maunally install l4v:

   wget http://www.linuxtv.org/downloads/v4l-utils/v4l-utils-0.8.8.tar.bz2
   tar -xvf v4l-utils-0.8.8.tar.bz2
   cd v4l-utils-0.8.8/
   make
   sudo make install
   cd ..
    
   

7. Download the current version of OpenCV (replace version with the actual version)

   tar -xjvf  OpenCV-version.tar.bz2
   rm OpenCV-version.tar.bz2
   cd OpenCV-version/
   mkdir build
   cd build/
    
   

8. Creat a standard configruation. Note, the following is entered all on one line
    
   sudo cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D BUILD_NEW_PYTHON_SUPPORT=ON -D BUILD_EXAMPLES=ON .. | sudo tee ./CMAKE.log
    
   Check the CMAKE.log file to make sure there are no errors and that if found all the libraries. If there are missing files, find them and point OpenCV installer at them (e.g. with a symlink)
9. Do the big compile. You probably want to start a new screen -S OpenCVInst then
   sudo su -
   make | tee make.log && make install | tee make_install.log
    
   Now you can detach the screen with Ctrl+a Ctrl+d and let it run. You can check the status with:
   tail -f make.log
    
   Compile times of overnight are the norm.
10. Tell Linux about the new libraries with
    sudo echo /usr/local/lib>/etc/ld.so.conf.d/opencv.conf
    sudo ldconfig /etc/ld.so.conf.d
    sudo echo PKG_CONFIG_PATH=$PKG_CONFIG_PATH:/usr/local/lib/pkgconfig>>/etc/bash.bashrc
    sudo echo export PKG_CONFIG_PATH>>/etc/bash.bashrc

See also:

• http://ariandy1.wordpress.com/2013/02/13/raspberry-pi-rasbian-opencv/ Detailed Installation and Setup from source
• http://raspberrypi.stackexchange.com/questions/409/can-i-use-opencv Installation without the long compile? (scroll down to the answer about apt-get)
• http://programmaticponderings.wordpress.com/2013/02/09/opencv-and-cvblob-with-raspberry-pi/ Sample C++ code
• http://stevenhickson.blogspot.com/2013/03/using-webcam-with-raspberry-pi.html Connecting a standard WebCam
• http://stackoverflow.com/questions/8667818/opencv-c-obj-c-detecting-a-sheet-of-paper-square-detection Square tracking (Sheet Of Paper)

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