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Hi I'm trying to install OpenCV 2.0 with new PythonInterface. But I always fail. There is only SWIG python interface. And also it seems to be that the PythonInterface was not installed. To build the OpenCV I use:

  • ./configure --without-ffmpeg (I also tried --with-python and without-swig)
  • make

  • sudo make install

    import sys
    sys.path.append('/usr/local/lib/python2.6/dist-packages/opencv')
    import cv
    im = cv.LoadImage("PIL04.JPG",1)

and the error is:

im = cv.LoadImage("PIL04.JPG",1)  
AttributeError: 'module' object has no attribute 'LoadImage'
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  • I'd like to know this, too. I think I'll just wait for someone to package it. Commented Nov 10, 2009 at 1:16
  • @endolith It is packaged here: launchpad.net/~gijzelaar/+archive/opencv2-karmic My problem is that both after installing from the 2.0 source and from the PPA, I still can't "import cv" from a Python console (throws ImportError). Would appreciate pointers. Commented Feb 25, 2010 at 23:45
  • Can you just use the precompiled binary? Commented Jun 24, 2012 at 12:21

1 Answer 1

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If you compile OpenCV using CMake, which is now preferred over Autotools, I believe the new Python bindings are actually the default (while the SWIG bindings are disabled). You can use -D BUILD_SWIG_PYTHON_SUPPORT=ON and -D BUILD_NEW_PYTHON_SUPPORT=ON variously to control the build behaviour with respect to Python bindings.

As a caveat, as of the 2.0 release, the new Python bindings are incomplete: many functions I would consider rather important missing. Meanwhile, the SWIG bindings are nothing short of agonizing to work with. The ctypes-opencv bindings (3rd party project), as of version 0.8.0, do not support OpenCV 2.0. So, in general, Python support in OpenCV is lacking.

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