| 摘要 |
PROBLEM TO BE SOLVED: To display an image such as a map accompanied by the time and a sense of the season. SOLUTION: The present date and hour is monitored by a calendar timer 56, a multiplication constant generating part 57 generates multiplication constants CR, CG, CB of R, G, B data so that a tone of color corresponding to the present time, season, or the like can be produced, multipliers 53R, 53G, 53B operate color information of a map image by multiplying the color information (RGB data) of the map outputted from a color pallet 52 by the multiplication constants CR, CG, CB respectively, and the image is displayed based on color information acquired by this operation. |
