Important details when trying to install openCV 3.0.0 on Mac El Capitan
when trying to install openCV on mac El Capitan, instead of Yostmite, you may encounter such problem of
>>> import cv2
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: dlopen(./cv2.so, 2): Library not loaded: lib/libopencv_reg.3.0.dylib
Referenced from: /Users/yushunzhe/.virtualenvs/cv/lib/python2.7/site-packages/cv2.so
Reason: image not found
such unable to load some libraries, and that's due to SIP (System Integrity Protection) introduced in El Capitan. Thus you will have to copy the folder cv2.so by yourself! which is critical to be able to load libraries later on.
For other part of installing, if you are in Mac El Capitan, you will finally encounter a problem I mentioned above. To make your life eaiser, I recommend use such command to go over that:
cp /usr/local/Cellar/opencv3/3.1.0/lib/python2.7/site-packages/cv2.so /usr/local/lib
as discussed in this post. And That's all, hope you enjoyed using openCV!
cd to the folder, then did:
python face_detect.py IMG_0244.jpg facecascade.xml
you should receieve the result like "1 face found" and found a funny Emoji overlaid. The final result looks like this:
