Mac OSX $python3 test_imagenet.py --image images/dog_beagle.png ImportError: No module named 'cv2'

Question

I am using the tutorial found here

The error I get on the command line and for the Pycharm IDE is that cv2 can't be installed. Is this a problem because I am using a Macbook or can this be solved?

Answer 1

If the error is saying "no module named cv2", you need to install OpenCV. You can do this with homebrew using brew install opencv

For detailed instructions, take a look at: http://www.mobileway.net/2015/02/14/install-opencv-for-python-on-mac-os-x/

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MORE INFO:

With opencv installed with brew, you just need to know the package location. Go to /usr/local/Cellar/opencv/ to find out your version number. I just installed with brew and have 2.4.13.

Once you know that, navigate to your Python directory with cd /Library/Python/2.7/site-packages/

You can then run each of these to link them up to Python:

ln -s /usr/local/Cellar/opencv/2.4.13/lib/python2.7/site-packages/cv.py cv.py
ln -s /usr/local/Cellar/opencv/2.4.13/lib/python2.7/site-packages/cv2.so cv2.so

(replace the 2.4.13 with the version number you have)

Hope that helps. I don't think it will be any easier with Windows, though.