| 摘要 |
<p>An image forming apparatus (50) outputs a proof chart in response to an instruction for calibration execution from a user and then a color measuring unit (12) measures the colors of patches on the proof chart. A profile management unit (13) selects, from entries in a base profile DB (15), a base profile in an entry that has color reproduction characteristics that are closest to the color measurement values of the patches and generates a sheet correction TRC that has an approximation to the color measurement values of the patches when the selected base profile is used. The selected base profile is used as a color conversion parameter in a color management module (3), and the generated sheet correction TRC is used as a tone correction parameter in a sheet-corresponding correcting unit (7).
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