ncnn/tools/quantize/CMakeLists.txt

find_package(OpenCV QUIET COMPONENTS core highgui imgproc imgcodecs)
if(NOT OpenCV_FOUND)
    find_package(OpenCV QUIET COMPONENTS core highgui imgproc)
endif()

if(OpenCV_FOUND)
    add_executable(ncnn2table ncnn2table.cpp)
    target_compile_definitions(ncnn2table PRIVATE -DOpenCV_VERSION_MAJOR=${OpenCV_VERSION_MAJOR})
    target_link_libraries(ncnn2table PRIVATE ncnn ${OpenCV_LIBS})

    add_executable(ncnn2int8 ncnn2int8.cpp)
    target_link_libraries(ncnn2int8 PRIVATE ncnn)

    # add all ncnn2table and ncnn2int8 tool to a virtual project group
    set_property(TARGET ncnn2table PROPERTY FOLDER "tools/optimization")
    set_property(TARGET ncnn2int8 PROPERTY FOLDER "tools/optimization")
else()
    message(WARNING "OpenCV not found, quantize tools won't be built")
endif()