| 摘要 |
PROBLEM TO BE SOLVED: To adjust with good prospects, a color conversion section (color conversion look-up table, LUT) that uses a print condition profile and a printer condition profile to convert CMYK image data supplied from a raster image processor RIP into RGB image data for a printer. SOLUTION: A PW displaying L*a*b* in a CIELAB space which is the photometric value of a specific print sheet, a DG displaying an entire dot gain of each color CMYK at a specific gradation of 50% of an entire color conversion look-up table(LUT), an entire display Ata of a tone curve representing a graph in CMYK of a tone curve of a dot gain (full scale:±20%) with respect to all input gradations (full scale: 0-100%) are displayed simultaneously. Thus, for example, a change in the displayed DG of the entire dot gain at the specific gradation of the entire color conversion LUT is confirmed, when the LUT for adjusting the tone curve to easily obtain the prospect how the overall color conversion processing by using the color conversion LUT, including the tone curve adjustment LUT after the adjustment reflects on the adjustment.
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