| 摘要 |
An image input and output system for scanning an image of a color original and processing data of the scanned image has a color line sensor for picking up the image of the original. The system also includes a memory for sequentially storing three types of data respectively representing the three primary colors and which are outputted from the color line sensor, in the order in which the data are outputted. An output control circuit calculates an address to read out the data stored in the memory such that a series of three data respectively representing the three primary colors and composing a first pixel partially overlaps with a series of three data respectively representing the three primary colors and composing a second pixel next to the first pixel, and for reading out, from the memory in accordance with the calculated address, a series of three data respectively representing the three primary colors to produce image data of the three primary colors for one pixel. The image input and output system can set an arbitrary pixel ratio and is free from image deterioration.
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