OpenMP+OpenCV cmake

cmake_minimum_required(VERSION 2.8)
project( <project_name> )
find_package( OpenCV REQUIRED )
find_package( OpenMP )
if(OPENMP_FOUND)
    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS}${OpenMP_C_FLAGS}")
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}${OpenMP_CXX_FLAGS}")
endif()
add_executable( <project_name> <file_name> )
target_link_libraries( <project_name> ${OpenCV_LIBS} )