#Brew install opencv python2.7 for mac os x
#Brew install opencv python2.7 update
#Brew install opencv python2.7 download

Once there we need to link our compiled OpenCV files, create a symlink using To verify that your OpenCV 3 + Python 3.5 installation on macOS is working you should: Open up a new terminal. Execute the workon command to access the cv Python virtual environment.

Ln -s /usr/local/Cellar/opencv/2.4.8/lib/python2.7/site-packages/cv.py cv.pyДЄttempt to import the Python + OpenCV bindings.

#Brew install opencv python2.7 for mac os x

BREW INSTALL OPENCV 3 PYTHON FOR MAC OS X.But enter when it is asking for the common name. Following this guide itвЂ™s easy to create a certificate file.

#Brew install opencv python2.7 download

We canвЂ™t skip the download phase because homebrew uncompress the source file each time we install OpenCV, and if I changed the CMake config in the source tarball the MD5 digest will be different and homebrew will refuse to use it to install.ДЇirstly I signed a SSL certificate for myself. ItвЂ™s hard for me to access the file directly, too. After analyzing that file we can reconstruct the download URL as вЂњвЂќ.Д«ut even if I use brew with http_proxy variable defined, CMake didnвЂ™t use my proxy. If you google this file, you will find the cmake config from GitHub.

If I download it using other ways like proxy/relay server/Cloud Storage/VPN, and copy it to the folder, homebrew will recognize it correctly.Д«ut here comes the weird thing, CMake has found the ippicv version is not newest, and try to download another file ippicv_macosx_20151201.tgz. But brew will download and save it in /Library/Caches/Homebrew by default. ItвЂ™s hard to download it using my network because of the bad connection with.

In homebrew formula for OpenCV3 thereвЂ™s a dependency of ippicv_macosx_20141027.tgz. Correct build options will be passed to CMake. So change it to other binary as you like, mine, for example, is /Library/Frameworks/amework/Versions/2.7/bin/python-config. If compiled by default, opencv will use the python-config shipped with OS X. with? 'python' py_prefix = `python-config -prefix`. Search вЂњpythonвЂќ in the document we may find a ruby block But I need it and I want to use my own distribution residing in /Library/Frameworks so we have to edit the formula: brew edit opencv3 If you donвЂ™t want to use python binding in OpenCV and only need C/C++ interface, you may add вЂњвЂ“without-pythonвЂќ option. If you have your own numpy package at hand, you may add вЂњвЂ“without-numpyвЂќ option. Installing OpenCV3 by default needs the numpy in homebrew/python/numpy. You could tap homebrew/python to get python packages, but I like to use pip instead. And in China we may suffer the bad network connection. ThereвЂ™re several points that may concern. Check it with brew or your other distribution. Note if you want to use GUI function in python, like the matplotlib package, you may have to install packages pyobjc-framework-*. But the latter two distribution have the right directory permission, pip will work well. I previously installed python in the second way, so now I have to use pip with -user option to install all packages in my user folder. Since the first one is reserved by OS X and save package in root folder, I donвЂ™t want to use it and battle with the new SIP feature.

Python compiled from source with a designated -prefixД®ach of them may have a corresponding pip util.

Python 2.7.11 downloaded from in /Library/Frameworks/amework/.

Python 2.7.10 shipped with OS X El Capitan in /System/Library/Frameworks/Python.

On OSX we may have many python distributions. Homebrew helps a lot when I deal with the dependencies. I choose the 2nd method because OpenCV relies on some other packages like eigen, libpng and so on.

use brew tap homebrew/science, and brew install opencv3.

download the tarball source file from, and build it on oneвЂ™s own.

On OS X we have several ways to build OpenCV. The source firstly provide a traditional C/C++ interface because it is itself written in C/C++. The better way is to use the Python binding that comes with OpenCV source. Up to now, most of the python wrappers for OpenCV in PyPI seem dead. Now brew install opencv3 will be ok and no more excessive changes needed.

#Brew install opencv python2.7 update

Update : As Homebrew is upgraded to 1.0, opencv3 formula recevies 3.1.0_4 update too.