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3-6) Create the graph below based on the data measured in step 5).
3.50
3.00
2.50
2.00
1.50
1.00
0.50
0.00
1
2
As shown in the above graph, the measurement values need only to nearly form a straight line
from the minimum density to the maximum density.
The important point here is that the measurement values make a straight line and a maximum
density corresponding to the settings is output.
If the measurement values deviate too far from the straight line and a maximum density
corresponding to the settings is not output, printer and monitor output linearity settings,
calibration, and other adjustments are necessary.
* The above graph is an example of measurements when the maximum density is set to 3.2 D
and the printed film is measured with a densitometer. Refer to the data below when the
maximum density is set to 3.1 D, or when gradation analysis software is used to take
measurements on the monitor.
* The LINEAR output cannot be set for some printer models.
In this case, try to select an output setting as close as possible to LINEAR.
Step
1
3.2 D
0
3.1 D
0
12 Bit
0
8 Bit
0
Possible causes of non-linearity in measurement values:
* Inadequate calibration of printer and high-definition monitor
* Inadequate settings for CXDI printer parameters
* Faults in printer or high-definition monitor
2
.
I
n
2
.
I
n
3
4
5
Step
Ideal density values in LINEAR LINE
2
3
4
0.32
0.64
0.96
1.28
0.31
0.62
0.93
1.24
410
819
1229
1638
26
51
77
s
t
a
l
l
a
t
i
o
n
s
t
a
l
l
a
t
i
o
n
6
7
8
9
5
6
7
1.60
1.92
2.24
1.55
1.86
2.17
2048
2457
2867
102
128
153
- 90 -
Max setting
density
Film base
density
10
11
8
9
10
11
2.56
2.88
3.20
2.48
2.79
3.10
3276
3686
4095
179
204
230
255
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