i used the following configuration
cmake -D CMAKE_BUILD_TYPE=RELEASE
-D CMAKE_INSTALL_PREFIX=/usr/local
-D INSTALL_C_EXAMPLES=ON -D INSTALL_PYTHON_EXAMPLES=ON
-D OPENCV_EXTRA_MODULES_PATH=../../opencv_contrib/modules-D BUILD_OPENCV_ENABLE_NONFREE=ON
-D WITH_OPENCL=ON
-D WITH_TBB=OFF -D WITH_OPENMP=ON -D WITH_V4L=ON
-D WITH_QT=OFF
-D WITH_OPENGL=ON
-D BUILD_EXAMPLES=ON ..
it did installed successfully
and for compiling my code, I Used
g++ 3bm3d.cpp -o bm3d `pkg-config --cflags --libs opencv ` -lopencv_xphoto
but still I am getting this infamous error ->
terminate called after throwing an instance of 'cv::Exception' what(): OpenCV(3.4.2) /home/odroid/Desktop/is2/opencv_contrib/modules/xphoto/src/bm3d_image_denoising.cpp:303: error: (-213:The function/feature is not implemented) This algorithm is patented and is excluded in this configuration;Set OPENCV_ENABLE_NONFREE CMake option and rebuild the library in function 'bm3dDenoising'
what else could I be possibly missing ??