Oce VarioPrint i Series, Руководство по эксплуатации

Страница: 377 / 402

Metrics Description
Maximum ∆H CMY sol-
ids Highest colour difference in ∆H between the measured Lab values of
the CMY solid patches on the colour control strip and the Lab values
of the matching patches of the reference printing condition.
Average ∆H composite
grays Average colour difference in ∆H between the measured Lab values of
the composite grey patches on the colour control strip and the Lab
values of the matching patches of the reference printing condition.
Maximum ∆H composite
grays Highest colour difference in ∆H between the measured Lab values of
the composite grey patches on the colour control strip and the Lab
values of the matching patches of the reference printing condition.
NOTE
Refer to Patches of the target chart on page 259 for to read the description of the patches.
△
L (Delta L)
Metrics Description
Average |∆L| composite
grays Average lightness difference in |∆L| between measured Lab values of
the composite grey patches on the colour control strip and the Lab
values of the matching patches of the reference printing condition.
Maximum |∆L| compo-
site grays Highest lightness difference in |∆L| between measured Lab values of
the composite grey patches on the colour control strip and the Lab
values of the matching patches of the reference printing condition.
Average weighted |∆L|
composite grays Average lightness difference in weighted |∆L| between measured Lab
values of the composite grey patches on the colour control strip and
the Lab values of the matching patches of the reference printing con-
dition.
Maximum weighted |∆L|
composite grays Highest lightness difference in weighted |∆L| between measured Lab
values of the composite grey patches on the colour control strip and
the Lab values of the matching patches of the reference printing con-
dition.
Average |∆L| K-only
patches Average lightness difference in |∆L| between measured Lab values of
the K-only patches on the colour control strip and the Lab values of
the matching patches of the reference printing condition.
Maximum |∆L| K-only
patches Highest lightness difference in |∆L| between measured Lab values of
the K-only patches on the colour control strip and the Lab values of
the matching patches of the reference printing condition.
Average weighted |∆L|
K-only patches Average lightness difference in weighted |∆L| between measured Lab
values of the K-only patches on the colour control strip and the Lab
values of the matching patches of the reference printing condition.
Maximum weighted |∆L|
K-only patches Highest lightness difference in weighted |∆L| between measured Lab
values of the K-only patches on the colour control strip and the Lab
values of the matching patches of the reference printing condition.
Estimated black point |
∆L| Lightness difference in |∆L| between the measured darkest patch on
the colour control strip and the darkest patch of the reference print-
ing condition. The darkest patch is the patch that has the lowest L*
value.
Overview of colour validation metrics
Chapter 14 - References 377