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The first problem was that I forgot enable BUILD_opencv_python2. It's required to enable these value, because it will build your Python opencv file.

The second problem was that I choosen VS2013 x64 in CMake, because I installed these version. But the correct VS version for Python 2.7.xx is VS2013 x86, because Python is 32bit and not 64bit.

After I changed the VS2013 type everthing went well and I could install OpenCV_contrib without problems.

Thank you for your help ;)

Could you find out if Python Version 2.7.10 is to advanced for building the opencv3-contrib version?

After I runned INSTALL in release mode, unfortunately nothing has changed. ALL_BUILD and INSTALL throw Errors like this one:

1>cv2.obj : error LNK2019: unresolved external symbol __imp_PyType_IsSubtype referenced in function "struct _object * __cdecl pyopencv_cv_xfeatures2d_xfeatures2d_SURF_setNOctaves(struct _object *,struct _object *,struct _object *)" (?pyopencv_cv_xfeatures2d_xfeatures2d_SURF_setNOctaves@@YAPEAU_object@@PEAU1@00@Z)

And the project didn't build... It's always either Error LNK2001 or Error LNK2019. Should I asked a new question and tag these one as solved?

I suppose the problem was that i didn't checked in the value BUILD_opencv_python2. Now Python is enabled:

Python 2:

Interpreter:                 C:/Python27/python.exe (ver 2.7.10)

Libraries:                   C:/Python27/libs/python27.lib (ver 2.7.10+)

numpy:                       C:/Python27/lib/site-packages/numpy/core/include (ver 1.8.0)

packages path:               C:/Python27/Lib/site-packages

But I've got a new problem, now I can't build the ALL_BUILD because of 68 errors...

Yes I'm using the cmake-gui. I already added the paths manually as you can see in the recently attached image above. Nevertheless python2 is disabled.. Do I need to add more paths?

Thank you very much! I attached the configuration output to the question. I suppose there is a problem because of python version 2.7.10 ("Could NOT find PythonInterp.....") but for my project I can't use python 3.x

I checked all build logs, all the entries are like that one (no errors): Up-to-date: C:/opencv/build/install/include/opencv2/cvconfig.h and finished with that line: 1>Done Building Project "C:\opencv\build\INSTALL.vcxproj" (Build target(s)). And my cv2.getBuildInformation() is the same after the installation, it's still the prebuild binaries one. I would like to copy it manually, but the INSTALL didn't create the cv2.pyd file. Should I send you the logs? Or is there any chance to download the cv2.pyd file with included xfeatures2d?

Done again.... But nothing has changed. The INSTALL didn't any copying. It only changed the opencv/build folder but nothing in the python folder... What could I do? Do I have to change something in the project? Thank you

I followed the readme and did exactly what is written there. I configured/generated it with CMake, I followed these instruction link text, as well as I added OPENCV_EXTRA_MODULES_PATH like explained in the readme. Then I built it with VS13 (ALL_BUILD) and I buitl the install project (INSTALL) like explained in the instructions. But it didn't change anything to my Python folder, just to the opencv/build folder. And now I don't know how to install it correctly to Python with the .pyd file. But even though thank you for your fast reply

Hey everyone, I've got the same problem (want to use sift/surf) I followed the install-guide for installing OpenCV from source and build the ALL_BUILD and the INSTALL project. But nothing happened to my Python27 directory (no errors in the builds, everything was successful). My question is: how can I install the INSTALL project to my python directory or how can I get the new cv2.pyd file which I could copy to the python directory? I deleted the cv2.pyd file which I copied to the python directory in a previous installation (prebuild binaries installation) before and after a INSTALL build but nothing changed. If I delete the file, following error will occur: "ImportError: No module named cv2". Thank you for your help!