| 摘要 |
A technology capable of reducing false contours and others in accordance with inclinations of various gradations and capable of improving image quality when moving images are displayed in a multiple tone display system is provided. In this display system, in addition to a movement amount (MV) and a digit change signal (RK) and the like, an edge amount (GR) which expresses a size of inclination of gradation is detected in a multiple tone processing unit. Then, in accordance with them, an appropriate process is selected and executed in a false contour processing unit from plural kinds of processes for reducing the false contours in moving images including a multiple tone process.
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