I use Python 3.4 through Anaconda distribution. They don't seem to have Python 3.4 bindings for OpenCV. I tried to use Cmake from the source, but to no avail. Could anybody please help me to install OpenCV for Python 3.4.x?
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What happened when you tried compiling?Padraic Cunningham– Padraic Cunningham2015-02-05 22:18:07 +00:00Commented Feb 5, 2015 at 22:18
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When I ran the CMake utility, I got an error saying something is missing in the CMakelists.txt file in the OpenCV/source folder?user3317287– user33172872015-02-06 03:26:51 +00:00Commented Feb 6, 2015 at 3:26
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Hi , I got to the point of compiling and generating a build for Python 3.x. But I don't know how to proceed from here. How do I get the cv2 module working in Python 3.xuser3317287– user33172872015-02-06 19:52:34 +00:00Commented Feb 6, 2015 at 19:52
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see also stackoverflow.com/questions/20953273/…NoDataDumpNoContribution– NoDataDumpNoContribution2015-02-13 09:28:58 +00:00Commented Feb 13, 2015 at 9:28
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I am using Windows 7, 64-bit. The solution provided are for Linux and OS X.user3317287– user33172872015-02-13 19:41:37 +00:00Commented Feb 13, 2015 at 19:41
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3 Answers
conda install -c menpo opencv3
Does the trick. However you have to have anaconda installed.
Comments
There are many tutorials and questions (on SO) about this.
This seems to answer your question. Edit: Reproduced below:
1) Download OpenCV from http://opencv.org/downloads.html and extract
2)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
3)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 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.
{End Reproduction}
EDIT2: OpenCV doesn't support Python 3.x except for OpenCV version 3.0 (still experimental, in beta). Download the 3.0 version from the download site and try that.(Thanks to this question).
A SO question with a possible tip, if the previous doesn't work.
And finally, I will point you to a read the docs tutorial on how to install it.
Good luck!
9 Comments
user3317287
I don't understand much from this website. Can you please tell me step-by-step how to install from the source if compatible binaries aren't already available?
user3317287
Yes, I did that but I got the following error in Python-3.4:ImportError: DLL load failed: The specified module could not be found.
user3317287
The cv2.pyd under Python 2.7 is not compatible with Python 3.4
user3317287
I installed the OpenCV version 3.0 beta, it still gives t he same error: ImportError: DLL load failed: The specified module could not be found.
user3317287
Hi, I built OpenCV for Python 3.4 using CMake and MingW. It builds successfully, but I don't know what to do from here. How do I get the OpenCV module in the lib/site-packages folder in Python? import cv2 doesn't work. Any help would be much appreciated.
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This is Quite Simple way:
I recommend to use through anaconda.
Create the environment in anaconda(recommended one):
conda create -n deeplearning
Then, activate by: activate deeplearning
Now, Install opencv for python3.x of Anaconda3 as:
conda install -c https://conda.binstar.org/menpo opencv3This will simply install opencv3 and other related libraries as: spicy, numpy, scikit-learn and matplotlib in that environment.
Check whether Opencv installed or not as:
>>> import cv2
>>> cv2.__version__
'3.1.0'
