Opencv 3 4 11

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/build/opencv/src/opencv-4.5.2/modules/core/src/hal_internal.cpp: In function ‘int lapack_QR(fptype*, size_t, int, int, int, fptype*, size_t, fptype*, int*)’:/build/opencv/src/opencv-4.5.2/modules/core/src/hal_internal.cpp:293:111: error: too few arguments to function ‘void dgels_(const char*, const int*, const int*, const int*, double*, const int*, double*, const int*, double*, const int*, int*, size_t)’ 293 | dgels_(mode, &m, &n, &k, (double*)tmpA, &ldtmpA, (double*)b, &m, (double*)&work1, &lwork, info); | ^In file included from /usr/include/lapack.h:11, from /usr/include/lapacke.h:36, from /build/opencv/src/build/opencv_lapack.h:12, from /build/opencv/src/opencv-4.5.2/modules/core/src/hal_internal.cpp:51:/usr/include/lapack.h:1525:6: note: declared here 1525 | void LAPACK_dgels_base( | ^~~~~~~~~~~~~~~~~/build/opencv/src/opencv-4.5.2/modules/core/src/hal_internal.cpp:302:111: error: too few arguments to function ‘void dgels_(const char*, const int*, const int*, const int*, double*, const int*, double*, const int*, double*, const int*, int*, size_t)’ 302 | dgels_(mode, &m, &n, &k, (double*)tmpA, &ldtmpA, (double*)b, &m, (double*)buffer, &lwork, info); | ^In file included from /usr/include/lapack.h:11, from /usr/include/lapacke.h:36, from /build/opencv/src/build/opencv_lapack.h:12, from /build/opencv/src/opencv-4.5.2/modules/core/src/hal_internal.cpp:51:/usr/include/lapack.h:1525:6: note: declared here 1525 | void LAPACK_dgels_base( | ^~~~~~~~~~~~~~~~~/build/opencv/src/opencv-4.5.2/modules/core/src/hal_internal.cpp:314:114: error: too few arguments to function ‘void dgels_(const char*, const int*, const int*, const int*, double*, const int*, double*, const int*, double*, const int*, int*, size_t)’ 314 | dgels_(mode, &m, &n, &k, (double*)tmpA, &ldtmpA, (double*)tmpB, &m, (double*)&work1, &lwork, info); | ^In file included from /usr/include/lapack.h:11, from /usr/include/lapacke.h:36, from /build/opencv/src/build/opencv_lapack.h:12, from /build/opencv/src/opencv-4.5.2/modules/core/src/hal_internal.cpp:51:/usr/include/lapack.h:1525:6: note: declared here 1525 | void LAPACK_dgels_base( | ^~~~~~~~~~~~~~~~~/build/opencv/src/opencv-4.5.2/modules/core/src/hal_internal.cpp:323:114: error: too few arguments to function ‘void dgels_(const char*, const int*, const int*, const int*, double*, const int*, double*, const int*, double*, const int*, int*, size_t)’ 323 | dgels_(mode, &m, &n, &k, (double*)tmpA, &ldtmpA, (double*)tmpB, &m, (double*)buffer, &lwork, info); | ^In file included from /usr/include/lapack.h:11, from /usr/include/lapacke.h:36, from /build/opencv/src/build/opencv_lapack.h:12, from /build/opencv/src/opencv-4.5.2/modules/core/src/hal_internal.cpp:51:/usr/include/lapack.h:1525:6: note: declared here 1525 | void LAPACK_dgels_base( | ^~~~~~~~~~~~~~~~~[ 9%] Building CXX object modules/core/CMakeFiles/opencv_core.dir/src/split.dispatch.cpp.o[ 9%] Building CXX object modules/core/CMakeFiles/opencv_core.dir/src/stat.dispatch.cpp.o[ 9%] Building CXX object modules/core/CMakeFiles/opencv_core.dir/src/stat_c.cpp.omake[2]: *** [modules/core/CMakeFiles/opencv_core.dir/build.make:509: modules/core/CMakeFiles/opencv_core.dir/src/hal_internal.cpp.o] Error 1make[2]: *** Waiting for unfinished jobs....

Our actual OpenCV + Python 2.7 bindings.Again, we’ll use the same ls and wildcard trick here to determine the proper path:$ ls -d /usr/local/Cellar/python/2.7.*/Frameworks/Python.framework/Versions/2.7/include/python2.7//usr/local/Cellar/python/2.7.12_2/Frameworks/Python.framework/Versions/2.7/include/python2.7/The output of the ls -d command is our full path to the Python.h headers. This value will replace ZZZ in the CMake template.Filling in the CMake templateNow that you’ve determined the PYTHON2_LIBRARY and PYTHON2_INCLUDE_DIR values you need to update the CMake command with these values.On my particular machine the full CMake command looks like this:$ cmake -D CMAKE_BUILD_TYPE=RELEASE \ -D CMAKE_INSTALL_PREFIX=/usr/local \ -D OPENCV_EXTRA_MODULES_PATH=~/opencv_contrib/modules \ -D PYTHON2_LIBRARY=/usr/local/Cellar/python/2.7.12_2/Frameworks/Python.framework/Versions/2.7/lib/python2.7/config/libpython2.7.dylib \ -D PYTHON2_INCLUDE_DIR=/usr/local/Cellar/python/2.7.12_2/Frameworks/Python.framework/Versions/2.7/include/python2.7/ \ -D PYTHON2_EXECUTABLE=$VIRTUAL_ENV/bin/python \ -D BUILD_opencv_python2=ON \ -D BUILD_opencv_python3=OFF \ -D INSTALL_PYTHON_EXAMPLES=ON \ -D INSTALL_C_EXAMPLES=OFF \ -D BUILD_EXAMPLES=ON ..However, please do not copy and paste my exact CMake command — make sure you have used the instructions above to properly determine your PYTHON2_LIBRARY and PYTHON2_INCLUDE_DIR values.Once you’ve filled in these values execute your cmake command and your OpenCV 3 + Python 2.7 build will be configured.As an example, take a look at the Python 2 section of the output from my configuration:Figure 8: Ensuring that Python 2.7 will be used when compiling OpenCV 3 for macOS.You’ll want to make sure that:The Interpreter points to the Python binary in your cv virtual environment.Libraries points to your libpython2.7.dylib file.The numpy version being utilized is the one you installed in your cv virtual environment.Step #8: Compile and install OpenCV on macOSAssuming you cmake command exited without error and your Python 2 section is properly configured, you can now compile OpenCV:$ make -j4The -j switch controls the number of parallel processes to compile OpenCV. We normally set this to the number of available cores/processors on our machine. Since I’m on a quad-core system, I use -j4 .OpenCV can take awhile to compile (30-90 minutes) depending on the speed of your machine. A successful compile will end with a 100% completion:Figure 9: Successfully compiling OpenCV 3 from source with Python 2.7 bindings on macOS.Assuming that OpenCV compiled without error, you can now install it on your macOS system:$ sudo make installStep #9: Sym-link your OpenCV 3 + Python 2.7 bindingsAfter running make install you should now see a file named cv2.so in /usr/local/lib/python2.7/site-packages :$ cd /usr/local/lib/python2.7/site-packages/$ ls -l cv2.so -rwxr-xr-x 1 root admin 3694564 Nov 15 09:20 cv2.soThe cv2.so file is your actual set of OpenCV 3 + Python 2.7 bindings.However, we need to sym-link these bindings into our cv virtual environment. This can be accomplished using the following commands:$ cd ~/.virtualenvs/cv/lib/python2.7/site-packages/$ ln -s /usr/local/lib/python2.7/site-packages/cv2.so cv2.so$ cd ~Step #10: Testing your OpenCV install on macOSTo verify that your OpenCV 3 + Python 2.7 installation on macOS is working:Open up a new terminal.Execute the workon command to access the cv Python virtual environment.Attempt to import the Python + OpenCV bindings.Here are the exact steps to test the install process:$ workon cv$ pythonPython 2.7.12 (default, Oct 11 2016, 05:20:59) [GCC 4.2.1 Compatible Apple LLVM 8.0.0 (clang-800.0.38)] on darwinType "help", "copyright", "credits" or "license" for more information.>>> import cv2>>> cv2.__version__'3.1.0-dev'>>>Note: Take note of the