| 摘要 |
A color image output device scans an original image and reproduces the image on a color printer. The device includes an input unit which derives a plurality of color signals corresponding to each picture element of the original image. The color signals are converted into a set of luminance and subtracted color signals. The set of luminance and subtracted color signals are then converted into a set of ink concentration signals for the color printer using a conversion table. The conversion table stores sets of ink concentration signals which are within a reproducible range of colors by the color printer. Where the set of luminance and subtracted color signals do not correspond to a reproducible color by the printer, an alternate set of reproducible ink concentration signals are provided by the conversion table.
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