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https://github.com/motmot/libcamiface

camera interface C API
https://github.com/motmot/libcamiface

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camera interface C API

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README 

        
.. _libcamiface:



************************************

libcamiface - camera interface C API

************************************



Overview

========



libcamiface ("camera interface") is a C API that provides a camera and OS

independent image acquisition framework.



There is also a Python wrapper (:mod:`cam_iface`) of the libcamiface

libraries.



.. _libcamiface-supported-cameras:



What cameras are supported?

===========================



Camera support is determined by a libcamiface "backend". Each backend

is a piece of code that creates the libcamiface interface for each

particular camera driver.



As seen below, the supported camera drivers are currently libdc1394,

the Prosilia Gigabit Ethernet SDK, and Point Grey Research

FlyCapture2. For a list of cameras supporting the libdc1394 software,

see http://damien.douxchamps.net/ieee1394/cameras/. For the Prosilica

Gigabit cameras, see http://www.prosilica.com/. For the Point Grey

cameras, see http://www.ptgrey.com.



.. _libcamiface-supported-rates:



What frame rates, image sizes, bit depths are possible?

=======================================================



This depends primarily on the camera and camera interface. A primary

goal of the Motmot suite is not to limit the capabilities

possible. The fastest frame rates that we routinely use are 500 fps

with a Basler A602f camera using a small region of interest and 200

fps on a Prosilica GE 680 at full frame resolution. The largest image

size we routinely use is 1600x1200 on a Pt. Grey Scorpion camera. The

largest bit depths we routinely use are 12 bits/pixel on a Basler

A622f camera.



Backend status

==============



A number of backends are supported.



.. list-table::

  :header-rows: 1



  * - Backend

    - GNU/Linux i386

    - GNU/Linux x86_64 (amd64)

    - win32 (XP)

    - Mac OS X

  * - libdc1394_

    - |works|

    - |works|

    - |orange| newest library version supports Windows, but untested with libcamiface

    - |mostly works| triggering options disabled

  * - `Prosilica GigE Vision`_

    - |works|

    - |works|

    - |works|

    - |works|

  * - `Point Grey Research FlyCapture2 `_

    - |orange| untested

    - |orange| untested

    - |works|

    - |NA|

  * - `ImperX`_

    - |NA|

    - |NA|

    - |orange| rudiments present in git 'cruft' branch

    - |NA|

  * - `Basler BCAM 1.8`_

    - |NA|

    - |NA|

    - |orange| rudiments present in git 'cruft' branch, frequent BSOD

    - |NA|



Key to the above symbols:



* |works| Works well, no known bugs or missing features

* |mostly works| Mostly works, some missing features

* |orange| Not working, although with some effort, could presumably be

   made to work

* |NA| The upstream driver does not support this configuration



.. _libdc1394: http://damien.douxchamps.net/ieee1394/libdc1394/

.. _Prosilica GigE Vision: http://www.prosilica.com

.. _ImperX: http://www.imperx.com/

.. _Basler BCAM 1.8: http://www.baslerweb.com/indizes/beitrag_index_en_21486.html



.. |works| image:: _static/greenlight.png

  :alt: works

  :width: 22

  :height: 22

.. |mostly works| image:: _static/yellowgreenlight.png

  :alt: mostly works

  :width: 22

  :height: 22

.. |orange| image:: _static/redlight.png

  :alt: caution

  :width: 22

  :height: 22

.. |NA| replace:: NA



Download

========



.. Also keep motmot/doc/source/download.rst in sync with download page.



Download official releases from `the download page`__.



__ http://code.astraw.com/libcamiface



Install from binary releases

============================



Mac OS X

--------



The Mac installer is called ``libcamiface-x.y.z-Darwin.dmg``.



This will install the files::



  /usr/include/cam_iface.h

  /usr/bin/liveview-glut-*

  /usr/bin/ ( other demos )

  /usr/lib/libcam_iface_*



To run a demo program, open ``/usr/bin/liveview-glut-mega``.



Windows

-------



The Windows installer is called ``libcamiface-x.y.z-win32.exe``.



This will install the files::



  C:\Program Files\libcamiface x.y.z\bin\simple-prosilica_gige.exe

  C:\Program Files\libcamiface x.y.z\bin\liveview-glut-prosilica_gige.exe

  C:\Program Files\libcamiface x.y.z\include\cam_iface.h

  C:\Program Files\libcamiface x.y.z\lib\cam_iface_prosilica_gige.lib

  C:\Program Files\libcamiface x.y.z\bin\cam_iface_prosilica_gige.dll



To run a demo program, open ``C:\Program Files\libcamiface x.y.z\bin\liveview-glut-prosilica_gige.exe``.



Compile from source

===================



On all platforms, you need to install cmake. cmake is available from

http://www.cmake.org/



You will also need the libraries for any camera software. Cmake should

automatically find these if they are installed in the default

locations.



linux

-----



::



  mkdir build

  cd build

  cmake ..

  make

  make install



To build with debug symbols, include the argument

``-DCMAKE_BUILD_TYPE=Debug`` in your call to cmake. To install in

/usr, include ``-DCMAKE_INSTALL_PREFIX=/usr``. To make verbose

makefiles, include ``-DCMAKE_VERBOSE_MAKEFILE=1``.



To cut a source release::



  VERSION="0.9.0"

  git archive --prefix=libcamiface-$VERSION/ release/$VERSION | gzip -9 > ../libcamiface-$VERSION.tar.gz

  git archive --prefix=libcamiface-$VERSION/ --format=zip release/$VERSION > ../libcamiface-$VERSION.zip



To make a Debian source package::



  VERSION="0.9.0"

  ln ../libcamiface-$VERSION.tar.gz ../libcamiface_$VERSION.orig.tar.gz

  rm -rf ../libcamiface_*.orig.tar.gz.tmp-nest

  git-buildpackage --git-debian-branch=debian --git-upstream-branch=master --git-no-create-orig --git-tarball-dir=.. --git-ignore-new --git-verbose -rfakeroot -S



Mac OS X

--------



Download and install Apple's XCode. This requires signing up (free) as

an Apple ADC member.



::



  mkdir build

  cd build

  cmake ..

  make

  cpack



To build with debug symbols, include the argument

``-DCMAKE_BUILD_TYPE=Debug`` in your call to cmake.



In fact, I use the following commands to set various environment

variables prior to my call to cmake.::



  # You will doubtless need to change these to match your system

  export PROSILICA_CMAKE_DEBUG=1

  export PROSILICA_TEST_LIB_PATHS=/Prosilica\ GigE\ SDK/lib-pc/x86/4.0

  export GLEW_ROOT="/Users/astraw/other-peoples-src/glew/glew-1.5.1"



This will build a Mac installer, called ``libcamiface-x.y.z-Darwin.dmg``.



To build an Xcode project, run cmake with the argument

``-DCMAKE_GENERATOR=Xcode``.



Windows

-------



Windows XP 32bit with CMake 2.6

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~



Install Microsoft's Visual Studio 2008. (Tested with Express Edition.)

Install CMake.



Open a Visual Studio Command Prompt from Start Menu->All

Programs->Microsoft Visual C++ 2008 Express Edition->Visual Studio

Tools->Visual Studio 2008 Command Prompt. Change directories into the

libcamiface source directory.



Compile in Release mode. (On linux, this would be done with adding

``-DCMAKE_BUILD_TYPE=Release`` in your call to cmake. As I write this,

I'm not sure of the best way to do it in Windows.)



::



  cmakesetup

  rem  In the cmakesetup GUI, set your source and build directories.

  rem  Click "configure".

  rem  In the "Select Generator" menu that pops up, press "NMake Makefiles".

  rem  After it's done configuring, click "configure" again.

  rem  Finally, click "OK".



  rem Now change into your build directory.

  cd build

  nmake



  rem Now, to build an NSIS .exe Windows installer.

  cpack



This will build a Windows installer, called

``libcamiface-x.y.z-win32.exe``.



Windows 7 64bit with CMake 2.8 to make 32 bit libcamiface

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~



Install Microsoft's Visual Studio 2008. Install CMake.



Open a Visual Studio Command Prompt from Start Menu->All

Programs->Microsoft Visual Studio 2008->Visual Studio

Tools->Visual Studio 2008 Command Prompt. Change directories into the

libcamiface source directory.



::



  cd build

  "C:\Program Files (x86)\CMake 2.8\bin\cmake.exe" .. -G "NMake Makefiles"

  nmake



  rem Now, to build an NSIS .exe Windows installer.

  cpack



This will build a Windows installer, called

``libcamiface-x.y.z-win32.exe``.



Backend notes

=============



prosilica_gige

--------------



Here is an example of setting attributes on the camera using

Prosilica's command line tools::



  export CAM_IP=192.168.1.63

  CamAttr -i $CAM_IP -s StreamBytesPerSecond 123963084

  CamAttr -i $CAM_IP -s PacketSize 1500



Environment variables:



  * *PROSILICA_BACKEND_DEBUG* print various debuging information.



libdc1394

---------



Environment variables:



 * *DC1394_BACKEND_DEBUG* print libdc1394 error messages. (You may

   also be interested in libdc1394's own *DC1394_DEBUG* environment

   variable, which prints debug messages.)



 * *DC1394_BACKEND_1394B* attempt to force use of firewire

    800. (Otherwise defaults to 400.)



 * *DC1394_BACKEND_AUTO_DEBAYER* use dc1394 to de-Bayer the images,

    resulting in RGB8 images (rather than MONO8 Bayer images).



Basler Pylon

------------



Environment variables for CMake:



 * *BASLER_PYLON_LIB_PATH* location of Basler libraries

    (e.g. ``export BASLER_PYLON_LIB_PATH="/opt/pylon/lib64/"``)



 * *BASLER_PYLON_INCLUDE_PATH* location of Basler include files

    (e.g. ``export BASLER_PYLON_INCLUDE_PATH="/opt/pylon/include/"``)



Environment variables for Basler Pylon libraries:



 * *PYLON_ROOT* location of Pylon SDK root (e.g. 

   ``export PYLON_ROOT=/opt/pylon``)



 * *GENICAM_ROOT* location of GenICam root (e.g. 

   ``export GENICAM_ROOT_V1_1=/opt/pylon``)



Git source code repository

==========================



The `development version of libcamiface`__ may be downloaded via git::



  git clone git://github.com/motmot/libcamiface.git



__ http://github.com/motmot/libcamiface



License

=======



libcamiface is licensed under the BSD license. See the LICENSE.txt file

for the full description.