| 摘要 |
In a first input step from outside to an image processor, a signal input unit inputs to a pre-filter a first part of first luminance signals inputted from outside, which is a part to be processed by the pre-filter in the first input step, and stores a remaining second part of the first luminance signals in the memory unit. In a second input step following the first input step, the signal input unit inputs to the pre-filter the second part of the first luminance signals read from the memory unit and a first part of second luminance signals inputted from outside, which is a part to be processed by the pre-filter in the second input step, and stores a remaining second part of the second luminance signals in the memory unit.
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