CONTROL METHOD OF INFORMATION BULLETIN BOARD, DISPLAY CONTROL DEVICE OF INFORMATION BULLETIN BOARD, DISPLAY CONTROL SYSTEM OF INFORMATION BULLETIN BOARD, AND CONTROL PROGRAM OF INFORMATION BULLETIN BOARD

摘要

PROBLEM TO BE SOLVED: To allow a driver to correctly recognize colors of characters or the like displayed on a bulletin board.SOLUTION: A display control device 4 includes a display control unit 21 that transmits management information for displaying characters or the like on an information bulletin board 2, and a display state control unit 22 that acquires image data from an imaging device 3 photographing the characters or the like displayed on the information bulletin board 2. The display control device 4 corrects RGB values of the colors of the characters from a Cr value and Cb value when first RGB values indicating the colors of the characters or the like included in the management information are subjected to YCrCb conversion, and a Y value when second RGB values indicating the colors of the characters or the like obtained from the image data are subjected to YCrCb conversion.