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LINEAR GRAY SCALE TEST CHART
- Introduction
- Product Software
LINEAR GRAY SCALE TEST CHART
REFLECTANCE
Two 11-graduated counter current gray scales are arranged on a gray background (D≈0.65),
the gray scales being graduated linear. Related to the densities of the gray scales:
gamma = 1. The contrast range of the gray scales is 40:1.
The values of the 11-graduated gray scales are the follows:
|
Step |
Density |
Reflectance in % |
|
1 |
0.05 |
89 |
|
2 |
0.10 |
80 |
|
3 |
0.14 |
72 |
|
4 |
0.20 |
63 |
|
5 |
0.26 |
54 |
|
6 |
0.34 |
45 |
|
7 |
0.43 |
37 |
|
8 |
0.55 |
28 |
|
9 |
0.71 |
19 |
|
10 |
0.96 |
11 |
|
11 |
1.65 |
2 |
The density of the white filed between the gray scales is D = 0.05 (reflectance = 89%).
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