How do I install Python OpenCV through Conda

Question

I m trying to install OpenCV for Python through Anaconda  but I can t seem to figure this out   I tried  conda install opencv conda install cv2   I also tried searching  conda search cv   No cigar  I ran across this which lists opencv as an included package   http   docs continuum io anaconda pkgs html  After running conda info I noticed my version is 3 4 1  but I couldn t seem to find any information about this version online  I m pretty confused about this   Am I missing something pretty obvious here  If opencv was available for a previous version of Anaconda  then why wouldn t it be available for the newer version  And why does that link only show me documentation for version 1 9 2

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To install the OpenCV package with conda  run   conda install -c menpo opencv3 3 1 0   https   anaconda org menpo opencv3

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The following installs opencv from conda-forge  note  tried on Windows   conda config --add channels conda-forge conda install opencv

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An easy and straight forward solution is to install python3 5 first before installing opencv3  conda install python 3 5   followed by  conda install --channel https   conda anaconda org menpo opencv3

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The correct command for installing the current version of OpenCV 3 3 in Anaconda windows   conda install -c conda-forge opencv   or  conda install -c conda-forge label broken opencv   For 3 2 use this   conda install -c menpo opencv3

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I have just tried on two Win32 Python 3 5 computers  At first  I was able to conda install opencv  but it didn t work nor did the version from menpp  but this did   conda install -c https   conda binstar org conda-forge opencv

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Try following these commands in this order - conda update anaconda-navigator conda update navigator-updater pip install opencv-python

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I just wanted to update the brilliant answer by Atlas7   If you re using OpenCV 3  change the test code to the following   import cv2 cap cv2 VideoCapture  input video mp4   print cap isOpened       True   read video successfully  False - fail to read video   fourcc   cv2 VideoWriter fourcc   XVID   out   cv2 VideoWriter  output avi  fourcc  20 0   640 480   print out isOpened      True   write out video successfully  False - fail to write out video   cap release   out release

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I entered the following command in the command prompt   conda install -c menpo opencv 2 4 11   This worked for me

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Windows 7  conda 4 4 10 python 2 7 6 Downloaded opencv package from Unofficial Windows Binaries for python extensions packages   picked python 2 4 AMD 64  cd Download pip install opencv python    python run some py  where import cv2      seems to work  YMMV

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To install OpenCv with conda on Windows-64 and Python 3 5  the only one that worked for me is   conda install -c conda-forge opencv 3 1 0

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I installed it like this     conda install --channel https   conda anaconda org conda-forge opencv   I tried conda install opencv directly  but it does not work for me since I am using Python 3 5 which is higher version that default OpenCV library in conda  Later  I tried  anaconda opencv   but it does not work either  I found finally that conda-forge opencv works for Python 3 5

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In May 2019  the answer is as follows for MacOS   conda update freetype conda install opencv -c conda-forge   This updates libfreetype 6 dylib to 24 0 0 compatibility and installs OpenCV 4 1 0

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Windows only solution  OpenCV 3 x pip install for Python 3 x  Download  whl file  cpMN where you have Python M N   contrib includes OpenCV-extra packages  For example  assuming you have Python 3 6 and Windows 64-bit  you might download opencv python-3 2 0 contrib-cp36-cp36m-win amd64 whl  From command prompt type   pip install opencv python-3 2 0 contrib-cp36-cp36m-win amd64 whl   You ll have a package in your conda list   opencv-python 3 2 0 contrib  lt pip gt   Now you could test it  no errors     gt  gt  gt  import cv2  gt  gt  gt    Original source page where I took the information is here

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it works on anaconda3 windows 10 I have already downloaded it at 5 December 2019  Firstly  using this command   pip install opencv-contrib-python  after that windows will ask for permission and try again   pip install opencv-contrib-python --user  look at this it works

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Following command adds a different anaconda channel for opencv3  you should be able to pull from it      conda install --channel  https   mirrors ustc edu cn anaconda cloud menpo opencv3

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I had steps in repo that will help you properly install OpenCV   If the links if broken  see this   For requirements and prerequisites follow this instructions   YOU NEED TO HAVE WINDOWS OS to begin this project   windows 7 to 10  Follow the steps carefully   Install Anaconda2 32 64 python 2   or   Install Anaconda3 32 64 python 3  It Depends on System Information  Along the way you must check all the options ignore the red text  Then wait till installation completed      Open CMD admin when finish installed  Make sure that the anaconda-python is configured in CMD admin  Type  python  This will come out   C  WINDOWS system32 python Python 3 6 3  Anaconda custom  64-bit    default  Oct 15 2017  03 27 45     MSC v 1900 64 bit  AMD64   on win32 Type  help    copyright    credits  or  license  for more information  Next is to install packages    Numpy  OpenCV  PyMySQL or pymysql  Install and Import OpenCV  conda install -c conda-forge opencv    version optional    click yes if there s updates   Install and Import Numpy  pip install numpy   click yes if there s updates   Install and Import PyMySQL pymysql  pip install PyMySQL or pymysql When all the package is completely installed  then you must Reboot it   go to CMD admin again  type  python   import cv2  cv2 is OpenCV   import Numpy or numpy  import pymysql   import os  from PIL from Image  if all of then is ok   your ready to run the code    After you finish all the steps  you can now test the code in SPYDER python that I use

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The following command works for me too  I am using an embedded IPython Notebook in Anaconda   conda install -c https   conda binstar org menpo opencv

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It doesn t seem like the page you linked includes opencv any more   Funny  I do recall it being included at a previous point as well   In any case  installation of OpenCV into Anaconda  although unavailable through conda  is pretty trivial  You just need to download one file   Download OpenCV from https   opencv org releases  and extract From the extracted folder  copy the file from the extracted directory  opencv build python 2 7  either x86 or x64  depending on your Anaconda version  cv2 pyd to your Anaconda site-packages directory  e g   C  Anaconda Lib site-packages To get FFmpeg within opencv to work  you ll have to add the directory that FFmpeg is located in to the path  e g   opencv sources 3rdparty ffmpeg   Then you ll have to find the DLL file in that folder  e g   opencv ffmpeg 64 dll  and copy or rename it to a filename that includes the opencv version you are installing   e g   opencv ffmpeg249 64  for 2 4 9   Now at the Python prompt you should be able to type  quot import cv2 quot    to verify that it works  type  quot print cv2   version   quot   and it should print out the OpenCV version you downloaded

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I faced the same problem  but I have solved it now  This is what I did   First enter conda install -c https   conda binstar org menpo opencv in the command prompt and then find the path Anaconda pkgs opencv-2 4 9 1-np19py27 0 Lib site-packages  Now copy all the files present here into Anaconda Lib site-packages  Now you will be able to use OpenCV with Python

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On Linux  as discussed here  the best way to get opencv at present is from loopbio at conda-forge   conda install -c loopbio -c conda-forge -c pkgw-forge ffmpeg-feature ffmpeg gtk2 opencv   If you have  a modern CPU  there exists also a compiled version  enabling all modern CPU instruction set extensions       and against libjpeg-turbo    conda install -c loopbio -c conda-forge -c pkgw-forge ffmpeg-feature ffmpeg gtk2 opencv-turbo    Two of the solutions mentioned in other answers don t work unconditionally    The conda you get through conda install opencv or pip install opencv-python doesn t have gtk2 support  so you can t display images through imshow  Conda built by Menpo  conda install -c menpo opencv3  has gtk2 support  but   they have only built OpenCV 3 2 for Python 3 5  not Python 3 6 Ubuntu 16 10 has deprecated libpng12  leading to a missing dependency and the following error when trying to import cv2  ImportError  libpng12 so 0  cannot open shared object file  No such file or directory  as discussed here    EDIT   Yamaneko points out that as of 14 June 2017   there is an issue with loopbio s OpenCV version 3 2 0  It silently fails to read and write videos  It is due to a combination of an upstream OpenCV issue in combination with an old GCC  More details here  There is a PR on its way to solve the issue

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Using Wheel files is an easier approach  If you cannot install Wheel files from the command prompt  you can use an executable pip file which exists in the  lt Anaconda path  Scripts folder

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I have summarized my now fully working solution  OpenCV-Python - How to install OpenCV-Python package to Anaconda  Windows   Nevertheless I ve copied and pasted the important bits to this post     At the time of writing I was using Windows 8 1  64-bit machine  Anaconda  Python 2 x   see notes below - this works also for Windows 10  and likely Python 3 x too     NOTE 1  as mentioned mentioned by  great raisin  thank you  in comment section however  this solution appears to also work for Windows 10  NOTE 2  this will probably work for Anaconda Python 3 x too  If you are using Windows 10 and Anaconda Python 3 x  and this solution works  please add a comment below  Thanks   Update  noting from comment  Working on Windows 10   NOTE 3  depending on whether you are using Python 2 x or 3 x  just adjust the print statement accordingly in code snippets  i e  in Python 3 x it would be print  hello    and in Python 2 x it would be print  hello     TL DR  To use OpenCV fully with Anaconda  and Spyder IDE   we need to    Download the OpenCV package from the official OpenCV site Copy and paste the cv2 pyd to the Anaconda site-packages directory  Set user environmental variables so that Anaconda knows where to find the FFMPEG utility  Do some testing to confirm OpenCV and FFMPEG are now working     Read on for the detail instructions      Prerequisite  Install Anaconda  Anaconda is essentially a nicely packaged Python IDE that is shipped with tons of useful packages  such as NumPy  Pandas  IPython Notebook  etc  It seems to be recommended everywhere in the scientific community  Check out Anaconda to get it installed   Install OpenCV-Python to Anaconda  Cautious Note  I originally tried out installing the binstar org OpenCV package  as suggested  That method however does not include the FFMPEG codec - i e  you may be able to use OpenCV  but you won t be able to process videos   The following instruction works for me is inspired by this OpenCV YouTube video  So far I have got it working on both my desktop and laptop  both 64-bit machines and Windows 8 1   Download OpenCV Package  Firstly  go to the official OpenCV site to download the complete OpenCV package  Pick a version you like  2 x or 3 x   I am on Python 2 x and OpenCV 3 x - mainly because this is how the OpenCV-Python Tutorials are setup based on   In my case  I ve extracted the package  essentially a folder  straight to my C drive  C  opencv    Copy and Paste the cv2 pyd file  The Anaconda Site-packages directory  e g  C  Users Johnny Anaconda Lib site-packages in my case  contains the Python packages that you may import  Our goal is to copy and paste the cv2 pyd file to this directory  so that we can use the import cv2 in our Python codes     To do this  copy the cv2 pyd file     From this OpenCV directory  the beginning part might be slightly different on your machine   For Python 3 x  I guess  just change the 2 x to 3 x accordingly     Python 2 7 and 32-bit machine  C  opencv build python 2 7 x84    Python 2 7 and 64-bit machine  C  opencv build python 2 7 x64   To this Anaconda directory  the beginning part might be slightly different on your machine    C  Users Johnny Anaconda Lib site-packages   After performing this step we shall now be able to use import cv2 in Python code  BUT  we still need to do a little bit more work to get FFMPEG  video codec  to work  to enable us to do things like processing videos    Set Environmental Variables  Right-click on  My Computer   or  This PC  on Windows 8 1    left-click Properties   left-click  Advanced  tab   left-click  Environment Variables     button   Add a new User Variable to point to the OpenCV  either x86 for 32-bit system or x64 for 64-bit system   I am currently on a 64-bit machine     32-bit or 64 bit machine    Variable       Value                                   --------------------------- -------------- --------------------------------------    32-bit                       OPENCV DIR     C  opencv build x86 vc12                64-bit                       OPENCV DIR     C  opencv build x64 vc12                Append  OPENCV DIR  bin to the User Variable PATH   For example  my PATH user variable looks like this     Before   C  Users Johnny Anaconda C  Users Johnny Anaconda Scripts   After   C  Users Johnny Anaconda C  Users Johnny Anaconda Scripts  OPENCV DIR  bin   This is it we are done  FFMPEG is ready to be used   Test to confirm  We need to test whether we can now do these in Anaconda  via Spyder IDE     Import OpenCV package Use the FFMPEG utility  to read write process videos    Test 1  Can we import OpenCV   To confirm that Anaconda is now able to import the OpenCV-Python package  namely  cv2   issue these in the IPython console   import cv2 print cv2   version     If the package cv2 is imported OK with no errors  and the cv2 version is printed out  then we are all good  Here is a snapshot     source  mathalope co uk     Test 2  Can we Use the FFMPEG codec   Place a sample input video mp4 video file in a directory  We want to test whether we can    read this  mp4 video file  and write out a new video file  can be  avi or  mp4 etc     To do this we need to have a test Python code  call it test py  Place it in the same directory as the sample input video mp4 file   This is what test py may look like  I ve listed out both newer and older version codes here - do let us know which one works   not work for you      Newer version      import cv2 cap   cv2 VideoCapture  input video mp4   print cap isOpened       True   read video successfully  False - fail to read video   fourcc   cv2 VideoWriter fourcc   XVID   out   cv2 VideoWriter  output video avi   fourcc  20 0   640  360   print out isOpened      True   write out video successfully  False - fail to write out video   cap release   out release      Or the older version      import cv2 cv2 VideoCapture  input video mp4   print cv2 isOpened       True   read video successfully  False - fail to read video   fourcc   cv2 cv CV FOURCC   XVID   out   cv2 VideoWriter  output video avi  fourcc  20 0   640 360   print out isOpened      True   write out video successfully  False - fail to write out video   cap release   out release     This test is VERY IMPORTANT  If you d like to process video files  you d need to ensure that Anaconda   Spyder IDE can use the FFMPEG  video codec   It took me days to have got it working  But I hope it would take you much less time      Note  One more very important tip when using the Anaconda Spyder IDE  Make sure you check the current working directory  CWD      Conclusion  To use OpenCV fully with Anaconda  and Spyder IDE   we need to    Download the OpenCV package from the official OpenCV site Copy and paste the cv2 pyd to the Anaconda site-packages directory  Set user environmental variables so that Anaconda knows where to find the FFMPEG utility  Do some testing to confirm OpenCV and FFMPEG are now working    Good luck

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This worked for me  on Ubuntu and conda 3 18 3    conda install --channel https   conda anaconda org menpo opencv3   The command above was what was shown to me when I ran the following   anaconda show menpo opencv3   This was the output   To install this package with conda run       conda install --channel https   conda anaconda org menpo opencv3   I tested the following in python without errors    gt  gt  gt  import cv2  gt  gt  gt

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conda install -c https   conda anaconda org menpo opencv   Try this

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I think the easiest option that should work cross-platform and across various versions of Anaconda is   Run Anaconda Prompt as an Administrator  on Windows   amp  execute the command below   you may need to use   sudo   on a Unix-Based or Mac system   to have the needed permissions   conda install -c conda-forge opencv

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You just copy the cv2 pyd file to the C  Users USERNAME Anaconda2 Lib directory   You get the cv2 pyd file at this link  https   sourceforge net projects opencvlibrary files     The cv2 pyd is located at C  Users USERNAME Desktop opencv build python 2 7 x64

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You can install OpenCV by running these commands in the Anaconda command prompt   conda config --add channels conda-forge  conda install libopencv opencv py-opencv   Source   https   github com conda-forge opencv-feedstock

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I just installed conda 4 7 11 in Windows 10  OpenCV can be easily installed in Anaconda Navigator  After launching Navigator  click on Environments on the left panel  In the top drop-down  select Not installed  Then search for py-opencv  tick on the left checkbox to install it  It will install the dependent package libopencv  I use import cv2 in Spyder to access it

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If you want to install opencv 3 4 0  there  unfortunately  is not this version inside conda    You need to use pip instead   pip install opencv-python  3 4 0 12

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I tried following command and it works fine     conda install -c conda-forge opencv   once you hit the command it will ask for yes or no    If you select yes it will proceed and install all the required packages

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i was on MAC machine inside one of anaconda virutal environment  For me   conda install -c conda-forge opencv   worked fine   It installed opencv version 3 4 4  Hope it helps

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If conda install opencv or conda install -c https   conda binstar org menpo opencv does not work  you can try to compile from the source   Download the source from http   opencv org downloads html  follow the install instruction in http   docs opencv org 2 4 doc tutorials introduction linux install linux install html   maybe you can jump to the last part directly   Building OpenCV from Source Using CMake      change the cmake command as following   mkdir release cd release cmake -D CMAKE BUILD TYPE RELEASE -D CMAKE INSTALL PREFIX  home    env opencv-2 4 10 -D BUILD NEW PYTHON SUPPORT ON -D PYTHON EXECUTABLE  home    env anaconda bin python -D PYTHON INCLUDE DIR  home    env anaconda include python2 7 -D PYTHON LIBRARY  home    env anaconda lib libpython2 7 so -D PYTHON PACKAGES PATH  home    env anaconda lib python2 7 site-packages -D PYTHON NUMPY INCLUDE DIRS  home    env anaconda lib python2 7 site-packages numpy core include     make -j4 make install   You will find cv2 so in anaconda lib python2 7 site-packages   Then   import cv2 print cv2   version     It will print out 2 4 10   My environment is GCC 4 4 6  Python 2 7  anaconda   and opencv-2 4 10

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Like others  I had issues with Python 3 5 1 Anaconda 2 4 0 on OS X 10 11    But I found a compatible package here   https   anaconda org menpo opencv3  It can be installed via the command line like so    conda install -c https   conda anaconda org menpo opencv3   Worked like a charm  First time I ve ever gotten OpenCV to work on 3 x

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You can install it using binstar   conda install -c menpo opencv

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I tried to use Minoconda on my Raspberry Pi  Raspibian OS   but I could not get Open CV for my platform  Finally the following command worked     sudo apt-get install ipython python-opencv python-scipy python-numpy python-setuptools python-pip

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I had exactly the same problem  and could not get conda to install OpenCV  However  I managed to install it with the OpenCV installer you find at this site   http   www lfd uci edu  gohlke pythonlibs   His files are  Wheel  whl files that can be installed with pip  e g   pip install SomePackage-1 0-py2 py3-none-any whl  in a command window  It worked with Spyder directly after executing this command for me  I have had the same experience with other packages  the above UC Irvine site is a gold mine

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Although not through Conda  and this is specific to Ubuntu  the easiest way to install OpenCV with all its contrib modules built in such as SIFT and SURF is to use   pip install opencv-contrib-python  It supports Python2 7  and Python 3 4   If you choose not to have the contribs built in  you could instead do   pip install opencv-python  You need to install the following dependencies below before you run those commands though   sudo apt-get install build-essential cmake git libgtk2 0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev  This is a good tutorial on setting OpenCV on Ubuntu  https   medium com  debugvn installing-opencv-3-3-0-on-ubuntu-16-04-lts-7db376f93961

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To install OpenCV in Anaconda  start up the Anaconda command prompt and install OpenCV with  conda install -c https   conda anaconda org menpo opencv3   Test that it works in your Anaconda Spyder or IPython console with  import cv2   You can also check the installed version using   cv2   version

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One thing i think nobody mentioned is that if you are using Windows N or KN edition  please install  Media Feature Pack  that is used for OpenCV   Also make sure you have Visual C   Distributable  installed  And then you can use command   conda install -c menpo opencv

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conda install opencv currently works for me on UNIX python2  This is worth trying first before consulting other solutions

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Here s a general approach to using conda to install packages for Python that applies    conda search packageName  e g  conda search opencv If this doesn t return results  conda install packageName will not work  At this point you can go to  https   anaconda org  and type the packageName into the search box  If this pulls up results  which it should for OpenCV   then click on one of the results that is for your platform  e g  win-64   The next page will show you the command to use to install this package  e g  conda install -c menpo opencv 2 4 11   If your package doesn t return results by search https   anaconda org  then you can try pip install packageName    Caution  when I used step 3 to install OpenCV for win-64  I got an error when I tried to import cv2   Here is the error   RuntimeError  module compiled against API version a but this version of numpy is 9 Traceback  most recent call last   File   lt stdin gt    line 1  in  lt module gt    ImportError  numpy core multiarray failed to import  I think the error is due to package version conflicts  Nevertheless  this is a valid way to install OpenCV and other Python packages  you just might need to resolve some package version conflicts

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