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△E76 (Delta E 1976)
Metrics
Substrate ∆E76
Maximum ∆E76
Average ∆E76
95th percentile ∆E76
Maximum ∆E76 CMYK
solids
Maximum ∆E76 CMY
solids
Maximum ∆E76 RGB
overprints
NOTE
• Delta E 1976, △E76 is based on a less complicated and accurate distance calculation. (
(Delta E) on page
• Refer to
Patches of the target chart on page 409
△H (Delta H)
Metrics
Maximum ∆H CMYK sol-
ids
Maximum ∆H CMYK sol-
ids and RGB overprints
Maximum ∆H CMY sol-
ids and RGB overprints
VarioPrint i-series MICR
Description
Color difference in ∆E76 between the measured and the reference
substrate white. For a side-by-side evaluation, the color control strip
must be printed with the rendering intent absolute colorimetric. The
reference substrate white is compared to the measured simulated
substrate white of the printed media.
Highest color difference in ∆E76 between the measured Lab values
of the color patches on the color control strip and the Lab values of
the matching patches of the reference printing condition.
Average color difference in ∆E76 between the measured Lab values
of the color patches on the color control strip and the Lab values of
the matching patches of the reference printing condition.
The 95th percentile ∆E76 color difference between the measured Lab
values of the color patches on the color control strip and the Lab val-
ues of the matching patches of the reference printing condition. This
means that 95% of all measured patches have ∆E76 color differences
smaller than or equal to the metric value.
Highest color difference in ∆E76 between the measured Lab values
of the CMYK solid patches on the color control strip and the Lab val-
ues of the matching patches of the reference printing condition.
Highest color difference in ∆E76 between the measured Lab values
of the CMY solid patches on the color control strip and the Lab val-
ues of the matching patches of the reference printing condition.
Highest color difference in ∆E76 between the measured Lab values
of the RGB overprint patches on the color control strip and the Lab
values of the matching patches of the reference printing condition.
413)
Description
Highest color difference in ∆H between the measured Lab values of
the CMYK solid patches on the color control strip and the Lab values
of the matching patches of the reference printing condition.
Highest color difference in ∆H between the measured Lab values of
the CMYK solid patches and the RGB overprint patches on the color
control strip and the Lab values of the matching patches of the refer-
ence printing condition.
Highest color difference in ∆H between the measured Lab values of
the CMY solid patches and the RGB overprint patches on the color
control strip and the Lab values of the matching patches of the refer-
ence printing condition.
Overview of color validation metrics
to the read description of the patches.
Chapter 15 - References
△E
4
539
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