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86 lines
3.1 KiB
ReStructuredText
86 lines
3.1 KiB
ReStructuredText
.. _Linux-Installation:
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Installation in Linux
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*********************
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These steps have been tested for Ubuntu 10.04 but should work with other distros as well.
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Required Packages
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=================
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* GCC 4.4.x or later
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* CMake 2.8.7 or higher
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* Git
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* GTK+2.x or higher, including headers (libgtk2.0-dev)
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* pkg-config
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* Python 2.6 or later and Numpy 1.5 or later with developer packages (python-dev, python-numpy)
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* ffmpeg or libav development packages: libavcodec-dev, libavformat-dev, libswscale-dev
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* [optional] libtbb2 libtbb-dev
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* [optional] libdc1394 2.x
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* [optional] libjpeg-dev, libpng-dev, libtiff-dev, libjasper-dev, libdc1394-22-dev
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The packages can be installed using a terminal and the following commands or by using Synaptic Manager:
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.. code-block:: bash
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[compiler] sudo apt-get install build-essential
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[required] sudo apt-get install cmake git libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev
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[optional] sudo apt-get install python-dev python-numpy libtbb2 libtbb-dev libjpeg-dev libpng-dev libtiff-dev libjasper-dev libdc1394-22-dev
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Getting OpenCV Source Code
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==========================
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You can use the latest stable OpenCV version available in *sourceforge* or you can grab the latest snapshot from our `Git repository <https://github.com/Itseez/opencv.git>`_.
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Getting the Latest Stable OpenCV Version
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----------------------------------------
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* Go to our `page on Sourceforge <http://sourceforge.net/projects/opencvlibrary>`_;
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* Download the source tarball and unpack it.
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Getting the Cutting-edge OpenCV from the Git Repository
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-------------------------------------------------------
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Launch Git client and clone `OpenCV repository <http://github.com/itseez/opencv>`_
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In Linux it can be achieved with the following command in Terminal:
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.. code-block:: bash
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cd ~/<my_working _directory>
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git clone https://github.com/Itseez/opencv.git
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Building OpenCV from Source Using CMake, Using the Command Line
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===============================================================
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#. Create a temporary directory, which we denote as <cmake_binary_dir>, where you want to put the generated Makefiles, project files as well the object files and output binaries.
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#. Enter the <cmake_binary_dir> and type
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.. code-block:: bash
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cmake [<some optional parameters>] <path to the OpenCV source directory>
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For example
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.. code-block:: bash
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cd ~/opencv
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mkdir release
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cd release
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cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local ..
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#. Enter the created temporary directory (<cmake_binary_dir>) and proceed with:
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.. code-block:: bash
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make -j8 # -j8 runs 8 jobs in parallel.
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# Change 8 to number of hardware threads available.
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sudo make install
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.. note::
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If the size of the created library is a critical issue (like in case of an Android build) you can use the ``install/strip`` command to get the smallest size as possible. The *stripped* version appears to be twice as small. However, we do not recommend using this unless those extra megabytes do really matter.
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