The ∆E*-value is calculated as long as the dif-
ference is in a reasonable range.
If the dierence exceeds a limit, then only the
measured density value is displayed without
comparison.
This procedure works for all CMYK colors.
The selected paper type is always indicated.
The color detection works for trapping patch-
es as well. The recognized type of patch is dis-
played in the printing order of the two colors.
The measured value is compared with the
ISO reference and the dierence is displayed
as ∆E*.
If paper white or any other undened patch is
measured then all four densities are displayed
simultaneously.
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