发明名称 Color image reading apparatus.
摘要 <p>A color image reading apparatus has a reading unit for color-separating and reading a color image, an operating unit for obtaining an average value of each of a plurality of color-component signals output from the reading unit, and a transforming unit for transforming the plurality of color-component signals from the reading unit into a plurality of color-density signals on the basis of the average values of the plurality of color-component signals obtained by the operating unit.</p>
申请公布号 EP0363969(A2) 申请公布日期 1990.04.18
申请号 EP19890118995 申请日期 1989.10.12
申请人 CANON KABUSHIKI KAISHA 发明人 OUTA, KEN-ICHI
分类号 G03B27/73;H04N1/60;H04N5/253;H04N9/73 主分类号 G03B27/73
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