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TE83 A Gray Scale Test Chart Reflectance

TE83 A Gray Scale Test Chart Reflectance is designed for evaluation of the halftone reproduction of electronic cameras.
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Date:2018-02-03  Browse:
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TE83 A Gray Scale Test Chart Reflectance

TE83 A Gray Scale Test Chart Reflectance

TE83 A Gray Scale Test Chart Reflectance

TE83 A Gray Scale Test Chart Reflectance is designed for evaluation of the halftone reproduction of electronic cameras. 
 
Two 11-graduated counter current gray scales are arranged on a gray background (D=0.62), the gray scales being graduated logarithmically (gamma = 0.45). The output signal of an optimal gamma-corrected camera yields two 11-graduated counter current linear step signals. The contrast range of the gray scale is 40:1.

The values of the 11-graduated gray scale charts are as follows:

Step

Density

Reflectance in %

1

0.05

89

2

0.13

74

3

0.22

60

4

0.32

48

5

0.43

37

6

0.55

28

7

0.69

20

8

0.86

14

9

1.06

9

10

1.31

5

11

1.65

2


The density of the white field between the grayscale chart is D=0.05 (reflectance = 89%).
 
Keywords: grayscale test chart, Gray Scale Test Chart, grayscale chart
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