| 摘要 |
There are provided a first color processing step of performing color processing on an image read from a front side of a document and a second color processing step of performing color processing on an image read from a back side of the document. A color of the image color-processed in the first color processing step is set as an initial target. A color processing parameter used in the second color processing step is adjusted such that a color of the image color-processed in the second color processing step matches the initial target. The color processing parameters used in the first and second color processing steps are adjusted in multiple steps such that both the color obtained by the parameter adjustment and the color of the image color-processed in the first color processing step become closer stepwise to the color of the image color-processed in the second color processing step.
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