--
- install python-3:
$ pyenv install 3.5.2- make a new virtualenv
$ pyenv virtualenv 3.5.2 cv- activate the virtualenv and install numpy
$ pyenv activate cv
(cv)$ pyenv rehash
(cv)$ pip install numpy- clone opencv and opencv_contrib
(cv)$ cd ~/src/openCV/Oct2016
(cv)$ git clone https://github.com/Itseez/opencv.git
(cv)$ git clone https://github.com/Itseez/opencv_contrib- prefer to build outside of opencv repository
(cv)$ mkdir build_vpy3
(cv)$ cd build_vpy3- the folder structure:
~/src/openCV/Oct2016/opencv/
/opencv_contrib/
/build_vpy3/
- CUDA-8 doesn't compile with xcode-8 so change default:
$ sudo xcode-select -switch /Applications/Xcode-7.3.appI had previously manually downloaded the older version of xcode from Apple and renamed the destination from Xcode.app to Xcode-7.3.app so that the latest version won't overwrite it.
- Ensure virtual environment is still active
~/src/openCV/October2016/build_vpy3:$ pyenv activate cv- run cmake, make, and make install
(cv)$ PREFIX_MAIN=pyenv virtualenv-prefix(cv)$ PREFIX=pyenv prefix(cv)$ cmake -D CMAKE_BUILD_TYPE=RELEASE \
-D CMAKE_INSTALL_PREFIX="$PREFIX" \
-D PYTHON3_EXECUTABLE="$PREFIX"/bin/python3 \
-D PYTHON3_PACKAGES_PATH="$PREFIX"/lib/python3.5/site-packages \
-D PYTHON3_LIBRARY="$PREFIX_MAIN"/lib/libpython3.5m.dylib \
-D PYTHON3_INCLUDE_DIR="$PREFIX_MAIN"/include/python3.5m \
-D PYTHON3_NUMPY_INCLUDE_DIRS="$PREFIX"/lib/python3.5/site-packages/numpy/core/include \
-D INSTALL_C_EXAMPLES=OFF \
-D INSTALL_PYTHON_EXAMPLES=ON \
-D BUILD_EXAMPLES=ON \
-D BUILD_opencv_python3=ON \
-D INSTALL_NAME_DIR=${CMAKE_INSTALL_PREFIX}/lib \
-D OPENCV_EXTRA_MODULES_PATH=~/src/source/openCV/Oct2016/opencv_contrib/modules ../opencv/(cv)$ make -j4(cv)$ make install