C H A P T E R F I V E
5
-
42
Hue/Grayness Function (518, 528, 530 only)
The instrument can report hue error/grayness and hue
error/grayness difference with or without paper
subtracted. Hue/Gray measures the selected ink through
all three filters (cyan, magenta, and yellow). Hue Error
and Grayness are calculated using the following formulas.
H =
D
D
D
D
100
M
L
H
L
−
−
×
G =
D
D
L
H
×
100
Where:
D
H
= Highest density of C, M, or Y.
D
M
= 2nd highest density of C, M, or Y.
D
L
= Lowest density of C, M, or Y.
Hue/Grayness Measurement Mode
Your instrument can evaluate hue/grayness in two
different ways: as absolute measurement data or as
difference (minus reference) measurement data. Pressing
the Enter key
#
with the Hue/Grayness mode highlighted
alternates between Hue/Gray and Hue/Gray Minus
Reference (HUE GRAY-REF).
Setting Options
Pressing the Enter key
#
with the Options menu
highlighted opens the Mode Editor. The mode is selected
from this editor.
Mode
The Mode allows you to select between Absolute and
–Paper. When you select hue/gray minus paper as the
mode, you must measure paper before taking a color
measurement.
H U E / G R A Y
-
R E F
O p t i o n s
>
P a p e r
H u e / G r a y
R e f e r e n c
V 0.00
C 0.00
M 0.00
Y 0.00
<
S e l e c t M o d e
>
T
HUE/GRAY
Содержание 500 Series
Страница 1: ...500 Series S P E C T R O D E N S I T O M E T E R Operator s Manual ...
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