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I believe berak is correct. I ended up building from source with Python 3.5 (Anaconda) and Visual Studio 2017, and so far it is working fine.

I would like to program with OpenCV 3.2 with both C++ and Python 3.5, under Windows 10. Can I do it just installing OpenCV 3.2 from the pre-built binaries? Or must I build OpenCV from source?

Thanks!

Given an OpenCV 3.2 API method, class, etc. in C++, how can I find the corresponding method, class, etc. in Python? Is it documented somewhere?

E.g., the C++ API has a function called void cv::HoughLinesP(); how do I find the signature of the corresponding function in Python?

Thanks!

I am trying to build the documents, after installation on Ubuntu 16.04, following instructions at: http://docs.opencv.org/3.1.0/d7/d9f/t...

At step 7 I got:

> pwd
/home/fanta/opt/opencv-3.1.0/build/doc
> make -j7 html_docs
make: *** No rule to make target 'html_docs'. Stop.

I have tried also with the doxygen tutorial, and I got the same kind of error (after running cmake):

> pwd
/home/fanta/opt/opencv-3.1.0/build
> make doxygen
make: *** No rule to make target 'doxygen'. Stop.
> cd doc
> make doxygen
make: *** No rule to make target 'doxygen'. Stop.

How can I build the OpenCV documentation?

Thanks!

I am trying to build OpenCV 2.4.9.1 under ubuntu 14.10, following the provided instructions.

I have cloned the git repository on my disk, checked out tag 2.4.9.1 and run cmake as per instructions.

Then, when I run make, I get errors, beginning with:

In file included from /home/fanta/eclipse-workspace/3rd_party/opencv/modules/highgui/src/cap_ffmpeg_impl.hpp:60:0,
                 from /home/fanta/eclipse-workspace/3rd_party/opencv/modules/highgui/src/cap_ffmpeg.cpp:45:
/home/fanta/eclipse-workspace/3rd_party/opencv/modules/highgui/src/ffmpeg_codecs.hpp:104:7: error: ‘CODEC_ID_H264’ was not declared in this scope
     { CODEC_ID_H264, MKTAG('H', '2', '6', '4') },
       ^
/home/fanta/eclipse-workspace/3rd_party/opencv/modules/highgui/src/ffmpeg_codecs.hpp:105:7: error: ‘CODEC_ID_H264’ was not declared in this scope
     { CODEC_ID_H264, MKTAG('h', '2', '6', '4') },
       ^
/home/fanta/eclipse-workspace/3rd_party/opencv/modules/highgui/src/ffmpeg_codecs.hpp:106:7: error: ‘CODEC_ID_H264’ was not declared in this scope
     { CODEC_ID_H264, MKTAG('X', '2', '6', '4') },
       ^

I am also getting similar errors when trying to build 3.0.0-beta.

Any clue what I am doing wrong?

Thanks!

I am trying to build OpenCV 2.4.9.1 under ubuntu 14.10, following the provided instructions.

I have cloned the git repository on my disk, checked out tag 2.4.9.1 and run cmake as per instructions.

Then, when I run make, I get errors, beginning with:

In file included from /home/fanta/eclipse-workspace/3rd_party/opencv/modules/highgui/src/cap_ffmpeg_impl.hpp:60:0,
                 from /home/fanta/eclipse-workspace/3rd_party/opencv/modules/highgui/src/cap_ffmpeg.cpp:45:
/home/fanta/eclipse-workspace/3rd_party/opencv/modules/highgui/src/ffmpeg_codecs.hpp:104:7: error: ‘CODEC_ID_H264’ was not declared in this scope
     { CODEC_ID_H264, MKTAG('H', '2', '6', '4') },
       ^
/home/fanta/eclipse-workspace/3rd_party/opencv/modules/highgui/src/ffmpeg_codecs.hpp:105:7: error: ‘CODEC_ID_H264’ was not declared in this scope
     { CODEC_ID_H264, MKTAG('h', '2', '6', '4') },
       ^
/home/fanta/eclipse-workspace/3rd_party/opencv/modules/highgui/src/ffmpeg_codecs.hpp:106:7: error: ‘CODEC_ID_H264’ was not declared in this scope
     { CODEC_ID_H264, MKTAG('X', '2', '6', '4') },
       ^

I am also getting similar errors when trying to build 3.0.0-beta.

Any clue what I am doing wrong?

Thanks!