opencv3.2
python3.6

#
安装python3
brew install python3

安装pip
wget https://bootstrap.pypa.io/get-pip.py
python get-pip.py

创建虚拟环境
pip install --upgrade virtualenv
virtualenv -p python3 .py3

pip3 install -U numpy scipy matplotlib scikit-learn scikit-image



brew tap homebrew/science

#有时会出错
brew install opencv3 --HEAD --with-python3  --without-python --with-contrib  --with-ffmpeg --with-tbb --with-gstreamer

#最简单的
brew install opencv3 --without-python --with-python3

链接cv2.so到虚拟环境里
ln -s /usr/local/Cellar/opencv3/3.2.0/lib/python3.6/site-packages/cv2.cpython-36m-darwin.so   ~/.py3/lib/python3.6/site-packages/cv2.so


测试
 ~/.py3/bin/python3.6

import cv2
print(cv2.__version__)
#3.2.0