opencv2 → opencv2 Relation

File in opencv2	Includes file in opencv2
objdetect / aruco_board.hpp	core.hpp
objdetect / aruco_dictionary.hpp	core.hpp
objdetect / barcode.hpp	core.hpp
objdetect / face.hpp	core.hpp
objdetect / graphical_code_detector.hpp	core.hpp
objdetect.hpp	core.hpp