Examples Questions about `OpenCV`

[DrRyanHuang]

Thx for your great work! However, when I try to build it, it raise a CMake Error about OpenCV.
To avoid this problem, I remove add_subdirectory(examples)

Could you please give me some advice about it? Thx for your time!

(base) xx@valvrave:~/yy/eq-ncnn$ ./compiler.sh linux
linux x86-64
~/yy/eq-ncnn/build-linux ~/yy/eq-ncnn
-- CMAKE_INSTALL_PREFIX = /home/x/yy/eq-ncnn/build-linux/install
-- The C compiler identification is GNU 11.4.0
-- The CXX compiler identification is GNU 11.4.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Found OpenMP_C: -fopenmp (found version "4.5") 
-- Found OpenMP_CXX: -fopenmp (found version "4.5") 
-- Found OpenMP: TRUE (found version "4.5")  
CMake Error at examples/CMakeLists.txt:4 (find_package):
  By not providing "FindOpenCV.cmake" in CMAKE_MODULE_PATH this project has
  asked CMake to find a package configuration file provided by "OpenCV", but
  CMake did not find one.

  Could not find a package configuration file provided by "OpenCV" with any
  of the following names:

    OpenCVConfig.cmake
    opencv-config.cmake

  Add the installation prefix of "OpenCV" to CMAKE_PREFIX_PATH or set
  "OpenCV_DIR" to a directory containing one of the above files.  If "OpenCV"
  provides a separate development package or SDK, be sure it has been
  installed.


-- Configuring incomplete, errors occurred!
See also "/home/x/yy/eq-ncnn/build-linux/CMakeFiles/CMakeOutput.log".
make: *** No targets specified and no makefile found.  Stop.
make: *** No rule to make target 'install'.  Stop.