Instructions for installing OpenCV3.2 on MacOS X

windows platform and linuxplatformInstallationSee the official documentation: http://docs.opencv.org/3.2.0/da/df6/tutorial_py_table_of_contents_setup.html

The official platform cannot be found when installed under mac. Reference:

https://www.learnopencv.com/install-opencv-3-on-yosemite-osx-10-10-x/

Core instructions Just two sentences, super simple.

brew tap homebrew/science
brew install opencv3

#But we also encountered a bunch of problems. The recording process is as follows:

1.

brew install opencv3

Error report:

Error: You must `brew link openexr` before homebrew/science/opencv3 can be installed

2. I thought there was no To install openexr, I checked http://www.openexr.com/ and I think it’s okay not to install it. There happens to be the --without-openexr option, so:

brew install opencv3 --without-openexr

Error report:

Error: The `brew link` step did not complete successfully
The formula built, but is not symlinked into /usr/local
Could not symlink share/aclocal/cmake.m4/usr/local/share/aclocal is not writable.

You can try again using:
  brew link cmake

………………

##3. Then follow the prompts:

brew link pkg-config

Error report:

Error: Could not symlink share/aclocal/pkg.m4/usr/local/share/aclocal is not writable.

4. Oh, no permissions. Then:

sudo brew link pkg-config

Error:

Error: Running Homebrew as root is extremely dangerous and no longer supported.

5. It turns out that it is not allowed, so I have to change the folder permissions

whoami# 下面两个命令中的‘whoami’用刚才命令的输出代替sudo chown -R 'whoami':admin /usr/local/share         
sudo chown -R 'whoami':admin /usr/local/local/bin

brew link pkg-configbrew link cmake
brew install opencv3 --without-openexr

is successful. It is estimated that the error reported in the first step is also a problem of not having permission to create a software connection.

6. Link to the

python environment. I am linking to the tensorflow1.0 environment built by anaconda

cd /Users/yuetiezhu/anaconda2/envs/tensorflow1.0/lib/python2.7/site-packagesln -s /usr/local/Cellar/opencv3/3.2.0/lib/python2.7/site-packages/cv2.so cv2.so

/usr/local/Cellar/opencv3 /3.2.0/lib/python2.7/site-packages There is no cv.py, only cv2.so, but it can be used

7. Test it

source activate tensorflow1.0python
import cv2

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