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How to install Python 2.7 bindings for OpenCV using MacPorts

Asked 2011-12-07T04:36:55.670
12

When trying to "import cv" in python I get: "ImportError: No module named cv". This question has appeared in many forms, but I haven't found the answer that helps.

On my Mac OS X Lion, among many other ports, I have run:

sudo port install python27

and

sudo port install opencv +python27

Running:

port select python

I see: "python27 (active)"

And running: 

port installed opencv

I see: "opencv @2.3.1a_1+python27 (active)"

What else should I check? Thanks.

python opencv osx-lion macports
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1 Answer

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STEP ONE

Use Macports to install opencv.

STEP TWO

Put these two files somewhere on your PYTHONPATH (for example in your site-packages):

STEP THREE

Create the below soft links (because cv2.so expects the dylibs to be in /usr/local but MacPorts installs to /opt/local):

cd /usr/local/lib/
ln -s /opt/local/lib/libopencv_core.2.3.dylib libopencv_core.2.3.dylib
ln -s /opt/local/lib/libopencv_flann.2.3.dylib libopencv_flann.2.3.dylib
ln -s /opt/local/lib/libopencv_imgproc.2.3.dylib libopencv_imgproc.2.3.dylib
ln -s /opt/local/lib/libopencv_video.2.3.dylib libopencv_video.2.3.dylib
ln -s /opt/local/lib/libopencv_ml.2.3.dylib libopencv_ml.2.3.dylib
ln -s /opt/local/lib/libopencv_features2d.2.3.dylib libopencv_features2d.2.3.dylib
ln -s /opt/local/lib/libopencv_highgui.2.3.dylib libopencv_highgui.2.3.dylib
ln -s /opt/local/lib/libopencv_calib3d.2.3.dylib libopencv_calib3d.2.3.dylib
ln -s /opt/local/lib/libopencv_objdetect.2.3.dylib libopencv_objdetect.2.3.dylib
ln -s /opt/local/lib/libopencv_legacy.2.3.dylib libopencv_legacy.2.3.dylib
ln -s /opt/local/lib/libopencv_contrib.2.3.dylib libopencv_contrib.2.3.dylib
answered 2012-01-03T06:18:19.390

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