| 摘要 |
A determination unit of a color conversion apparatus refers to Pure Gray allowance designation information supplied from outside. In a case where the Pure Gray allowance designation information is forcible Enable to unconditionally allow Pure Gray, the Pure Gray is determined to be Enable. In a case of forcible Disable to unconditionally inhibit, the Pure Gray is determined to be Disable. In a case of automatic selection to automatically determine Enable or Disable based on color distribution information, a determination is made based on the color distribution information as to whether an achromatic color is included in the color arrangement or color arrangement pattern of a drawing object under attention, whether the color arrangement is uniform, and whether a chromatic color is included in the color arrangement pattern.
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