cmake_minimum_required(VERSION 2.8)
project( opencvtest )
# Enable C++11
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED TRUE)
SET(LD_LIBRARY_PATH /usr/local/lib)
# print(LD_LIBRARY_PATH /usr/local/include/opencv4)
find_package( OpenCV REQUIRED )
message(STATUS “OpenCV library status:”)
message(STATUS “ version: ${OpenCV_VERSION}”)
message(STATUS “ libraries: ${OpenCV_LIBS}”)
message(STATUS “ include path: ${OpenCV_INCLUDE_DIRS}”)
message(STATUS “ LD_LIBRARY_PATH path: ${LD_LIBRARY_PATH}”)

Add OpenCV headers location to your include paths
include_directories(${OpenCV_INCLUDE_DIRS})

add_executable( cvtest cvtest.cpp )
target_link_libraries( cvtest
${LD_LIBRARY_PATH}/libopencv_core.so
${LD_LIBRARY_PATH}/libopencv_imgproc.so
${LD_LIBRARY_PATH}/libopencv_videoio.so
${LD_LIBRARY_PATH}/libopencv_imgcodecs.so
${LD_LIBRARY_PATH}/libopencv_photo.so
${LD_LIBRARY_PATH}/libopencv_highgui.so
${LD_LIBRARY_PATH}/libopencv_videoio.so
${LD_LIBRARY_PATH}/libopencv_videoio.so
${LD_LIBRARY_PATH}/libprotoc.so

)