Canon VarioPrint MICR i Series, Operation Manual

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Metrics Description
Maximum ∆H CMY sol-
ids Highest color difference in ∆H between the measured Lab values of
the CMY solid patches on the color control strip and the Lab values
of the matching patches of the reference printing condition.
Average ∆H composite
grays Average color difference in ∆H between the measured Lab values of
the composite gray patches on the color control strip and the Lab
values of the matching patches of the reference printing condition.
Maximum ∆H composite
grays Highest color difference in ∆H between the measured Lab values of
the composite gray patches on the color 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 409 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 gray patches on the color 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 gray patches on the color 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 gray patches on the color 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 gray patches on the color 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 color 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 color 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 color 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 color 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 color control strip and the darkest patch of the reference printing
condition. The darkest patch is the patch that has the lowest L* val-
ue.
Overview of color validation metrics
540 Chapter 15 - References
VarioPrint i-series MICR