| 摘要 |
PROBLEM TO BE SOLVED: To provide an image processing technique which can handle both CCD and CIS, excellent in memory efficiency, stores image data read by each device in a memory and controls reading the stored data with a rectangular area unit. SOLUTION: An image processing device is provided with a memory area control unit which sets a rectangular area divided in a main scanning direction and in a sub scanning direction to the image data deployed on a first memory, an address generating unit which corresponds to the rectangular area thus set and generates address information for reading the image data corresponding to the rectangular area, a memory control unit which reads the image data corresponding to the rectangular area according to the address information thus generated and DMA-transfers the image data to a second memory, and an image processing part which processes the image data thus DMA-transferred in a rectangular area unit basis by making use of the second memory. COPYRIGHT: (C)2004,JPO&NCIPI
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