SVS-VISTEK
Feature description
33
Gamma Correction
Using the LookUp Table makes is also possible to implement a
logarithmic correction. Commonly called Gamma Correction.
Historically Gamma Correction was used to correct the illumination
behavior of CRT displays, by compensating brightness-to-voltage with a
Gamma value between 1,8 up to 2,55.
The Gamma algorithms for correction can simplify resolution shifting as
shown seen above.
Input & Output signal range from 0 to 1
Output-Signal = Input-
Signal
Figure 2: Several gamma curves comparable to a LUT
Gamma values less than 1.0 map darker image values into a wider
ranger.
Gama values greater than 1.0 do the same for brighter values.
NOTICE
Gamma Algorithm is just a way to generate a LUT. It is not
implemented in the camera directly..
Содержание 926.15hr387*XGE Series
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