| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem that a large capacity memory is required since it is necessary to store the image data of a maximum size in a memory both for B/W and for FC for performing ACS processing. SOLUTION: A system control part 14 selectively sets a first operating mode (prescanless) and a second operating mode (prescan + main scan) corresponding to original size information. When the first operating mode is set, image data inputted from an image input part 11 by main scan are stored in an image memory 53 and on the basis of the image data stored in this image memory 53, a color identifying part 54 performs ACS processing. When the second operating mode is set, on the other hand, on the basis of image data inputted from the image input part 11 by prescan, the color identifying part 54 performs ACS processing and the image data inputted from the image input part 11 by following main scan are stored in the image memory 53.
|
