| 摘要 |
A sequential scanning conversion device includes: N (N is 3 or larger integer) line memories which store each input image data of successive N main scanning lines contained in input image data for interlaced scanning; an input/output control unit which sequentially selects one of the N line memories and writes the input image data to the selected line memory, and also reads (N-1) input image data written to the other (N-1) line memories in such timing at least a part of which overlaps with the writing timing; and an image processing unit which produces output image data for sequential scanning corresponding to M (M is one or larger integer) main scanning lines by applying predetermined process established in advance to the (N-1) input image data.
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