Difference between revisions of "OpenCV"

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== Pre-requisite ==
 
== Pre-requisite ==
−
You need to have [[CMake]] installed on your system.
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You need to have [[CMake]] >=2.6 installed on your system.
  
 
== Build OpenCV ==
 
== Build OpenCV ==
−
# Edit your <!--[[Cmake#The_toolchain_file | ]]-->toolchain.cmake file
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# Edit your [[CMake#The_toolchain_file| toolchain.cmake file]]
 
# Create source and build directories <source lang="bash">
 
# Create source and build directories <source lang="bash">
 
mkdir -pv opencv-on-armadeus/{src,build}
 
mkdir -pv opencv-on-armadeus/{src,build}
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== Available features ==
 
== Available features ==
−
CMake looks for all required tool in the path specified in <!--[[Cmake#The_toolchain_file|toolchain.cmake file]]--> toolchain.cmake file; therefore, some options, targets, libraries, ... are not available:
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CMake looks for all required tool in the path specified in [[CMake#The_toolchain_file| toolchain.cmake file]] toolchain.cmake file; therefore, some options, targets, libraries, ... are not available:
  
 
* Build:
 
* Build:
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{{Note|You may need to enable some packages in your Armadeus configuration to get some libraries (libjpeg, libpng and libtiff) found by CMake.}}
 
{{Note|You may need to enable some packages in your Armadeus configuration to get some libraries (libjpeg, libpng and libtiff) found by CMake.}}
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 +
== See also ==
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* [http://opencv.willowgarage.com/wiki/InstallGuide| OpenCV install guide]

Revision as of 00:30, 5 June 2010

Page under construction... Construction.png Informations on this page are not guaranteed !!

Forewords

This page explains how to (cross-)compile OpenCV 2.1.0 for your APF-board.

Pre-requisite

You need to have CMake >=2.6 installed on your system.

Build OpenCV

  1. Edit your toolchain.cmake file
  2. Create source and build directories 
    mkdir -pv opencv-on-armadeus/{src,build}
  3. Grab the source archive 
    cd opencv-on-armadeus/src && wget http://sourceforge.net/projects/opencvlibrary/files/opencv-unix/2.1/OpenCV-2.1.0.tar.bz2/dowload && tar xvvjf OpenCV-2.1.0.tar.bz2
  4. Run CMake (generate Makefiles) 
    1. cd ../build && cmake -DCMAKE_TOOLCHAIN_FILE:PATH=/path/to/toolchain.cmake ../src/OpenCV-2.1.0
    2. It will certainly complain about unfound libraries and some other things, so adjust these things running:
      cmake-gui
  5. Compile OpenCV libraries 
    VERBOSE=1 make


Note Note: cmake-gui
  • Click twice on Configure when you change something.
  • When configuring exit without any error, click on Generate to generate Makefiles.
  • If your configuration is too messy, reset it by deleting the cache (File/Delete Cache) or remove the CMakeCache.txt file in the build directory. Don't hesitate to do so if something (eg. paths) is wrong ;)
  • To see the cmake-command that corresponds to the configuration you have just set in cmake-gui: Tools/Show my changes


Available features

CMake looks for all required tool in the path specified in toolchain.cmake file toolchain.cmake file; therefore, some options, targets, libraries, ... are not available:

  • Build:
    • Latex Doc  : Not available in Buildroot
    • New Python support  : Not available (require Python >=2.6, Buildroot provides Python 2.4)
    • Swing Python support : Not available (require Python >=2.6, Buildroot provides Python 2.4)
    • Octave support  : Not available in Buildroot
  • Python
    • Executable  : Not found (require Python >=2.6, Buildroot provides Python 2.4)
    • Include dirs.  : Found
    • Library  : Not found (require Python >=2.6, Buildroot provides Python 2.4)
  • With
    • V4L  : Disable it (Buildroot provides it, but linker failed)
  • OpenCV
    • 3rd party libs.  : You can enable it.


Note Note: You may need to enable some packages in your Armadeus configuration to get some libraries (libjpeg, libpng and libtiff) found by CMake.


See also

Retrieved from "http://armadeus.org/wiki/index.php?title=OpenCV&oldid=8276"