Hello I have been having issues trying to add the OpenCV Contrib.
I run these code.
$ wget https://github.com/opencv/opencv/archive/4.1.1.zip -O opencv-4.1.1.zip
$ wget https://github.com/opencv/opencv_contrib/archive/4.1.1.zip -O opencv_contrib-4.1.1.zip
$ unzip opencv-4.1.1.zip
$ unzip opencv_contrib-4.1.1.zip
$ cp -r ./opencv_contrib-4.1.1/modules ./opencv-4.1.1/modules/
$ cd opencv-4.1.1/
$ mkdir build
$ cd build
$cmake
-D CUDA_HOST_COMPILER=/usr/bin/gcc-7
-D CUDA_NVCC_FLAGS=“–expt-relaxed-constexpr”
-D CUDA_VERSION=“10000”
-DWITH_NVCUVID=OFF
-DENABLE_CCACHE=OFF
-DEIGEN_INCLUDE_PATH=/usr/include/eigen3
-D HAVE_CUDA=1
-D WITH_CUDA=ON
-D CUDA_ARCH_BIN=“5.3”
-D CUDA_ARCH_PTX=“”
-DWITH_FAST_MATH=OFF
-D WITH_GSTREAMER=ON
-D WITH_LIBV4L=ON
-D BUILD_opencv_python2=OFF
-D BUILD_opencv_python3=ON
-DPYTHON3_EXECUTABLE=/usr/bin/python3
-D BUILD_TESTS=OFF
-D BUILD_PERF_TESTS=OFF
-D BUILD_EXAMPLES=OFF
-D CMAKE_BUILD_TYPE=RELEASE
-D CMAKE_INSTALL_PREFIX=/usr/local/
-D WITH_CUBLAS=ON
-D LAPACK_CBLAS_H=/usr/include/aarch64-linux-gnu/cblas.h …
$ make -j4
$ sudo make install
cmake shows many modules during program execution
OpenCV modules:
To be built: aruco bgsegm bioinspired calib3d ccalib core cudaarithm cudabgsegm cudacodec cudafeatures2d cudafilters cudaimgproc cudalegacy cudaobjdetect cudaoptflow cudastereo cudawarping cudev datasets dnn dnn_objdetect dpm face features2d etc…
But I run the python3 after finishing this code I cant use contrib.
import cv2
print(cv2.getBuildInformation())
To be built: calib3d core dnn features2d flann gapi highgui imgcodecs imgproc ml objdetect photo python2 python3 stitching ts video videoio
print(cv2)
<module ‘cv2’ from ‘/usr/lib/python3.6/dist-packages/cv2/python-3.6/cv2.cpython-36m-aarch64-linux-gnu.so’>
Maybe Opencv is not with contrib but default.
So Please tell me the solution.