| 摘要 |
PROBLEM TO BE SOLVED: To provide an on-vehicle navigation apparatus in which the amount of information displayed on the screen of a display device is increased substantially and which eliminates a hatred. SOLUTION: A region in which the hue and the luminance of an image are not changed at a prescribed value or higher inside one region on a screen which is displayed by a display device 38 is extracted by a region extraction device 42 on the basis of information stored in a video RAM 36, When the size of the extracted region is at a prescribed value or higher, data in the video RAM 36 corresponding to the extracted region is rewritten by using image data selected by a selection device 44. New image information is displayed in the region selected by the region extraction device 42. |
