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Using JavaCV on pcDuino

alvin_jin

We follow the instructions on

http://salaboy.com/2013/06/14/using-javacv-in-the-raspberry-pi-linux-arm/

The following are the actual steps we did:

Install the dependency:

  1. sudo apt-get install build-essential cmake pkg-config libpng12-0 libpng12-dev libpng++-dev libpng3
  2. sudo apt-get install libpnglite-dev  libpng12-0 libpng12-dev libpng++-dev libpng3  zlib1g-dbg zlib1g zlib1g-dev pngtools libtiff4-dev
  3. sudo apt-get install libtiff4 libtiffxx0c2 libtiff-tools libjpeg8 libjpeg8-dev libjpeg8-dbg libjpeg-progs ffmpeg libavcodec-dev
  4. sudo apt-get install libavcodec53 libavformat53 libavformat-dev libgstreamer0.10-0-dbg libgstreamer0.10-0  libgstreamer0.10-dev
  5. sudo apt-get install libxine1-ffmpeg  libxine-dev libxine1-bin libunicap2 libunicap2-dev libdc1394-22-dev libdc1394-22 libdc1394-utils
  6. sudo apt-get install swig libv4l-0 libv4l-dev

Download, compile, and install OpenCV:

  1. wget http://netcologne.dl.sourceforge.net/project/opencvlibrary/opencv-unix/2.4.5/opencv-2.4.5.tar.gz
  2. tar -xvzf opencv-2.4.5.tar.gz
  3. cd opencv-2.4.5
  4. mkdir release
  5. cd release/
  6. cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D BUILD_PYTHON_SUPPORT=OFF -D BUILD_EXAMPLES=OFF ..
  7. make
  8. sudo make install

The above steps will take about 2 hours.

  1. sudo ldconfig

 

Now, we begin to download and compile javacv. Before we do that, we need to install:

 

  1. sudo apt-get install maven
  2. sudo apt-get install git
  3. sudo apt-get install openjdk-6-jdk

Configure the java path:

  1. export JAVA_HOME=/usr/lib/jvm/java-6-openjdk-armhf/
  2. ubuntu@ubuntu:~/opencv-2.4.5/release/javacv$ export $JAVA_HOME
  3. export PATH=$PATH:$JAVA_HOME/bin

Download JavaCV:

  1. git clone https://code.google.com/p/javacv/
  2. git clone https://code.google.com/p/javacpp/

We need to remove preload=’tbb’ in open_core.java:

  1. cd javacv
  2. leafpad  ./src/main/java/com/googlecode/javacv/cpp/opencv_core.java

search for preload=”tbb” can remove this termsudo ln -s /usr/lib/jvm/java-6-openjdk-armhf/jre/lib/arm/server/libjvm.so libjvm.so.0Now we can build javac by doing:

  1. cd javacv
  2. mvn clean install -Dplatform.name=linux-arm