Instruction manual

Guppy PRO Technical ManualV4.1.0
93
Description of the data path
or with normalized values:
Output/1023 = (Input/4095)
0.45
This gamma LUT is used with all Guppy PRO models.
Gamma is known as compensation for the nonlinear brightness response of
many displays e.g. CRT monitors. The look-up table converts the incoming 12 bit
from the digitizer to outgoing 10 bit.
Figure 40: LUT with gamma= 0.45
Note

• The input value is the most significant 12-bit value from
the digitizer.
• Gamma 1 (gamma= 0.45) switches on the LUT. After over-
riding the LUT with a user defined content, gamma func-
tionality is no longer available until the next full initial-
ization of the camera.
• LUT content is volatile if you do not use the user profiles
to save the LUT.
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Output
Input
Output = f(input)
Gamma=0.45