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Reference Manual ATOM one 4K mini
Note: The values are normalized to a range from 0.0 to 1.0 and multiplied by a scaling
coefficient of 1000.
The following image shows the normalized REC.709 gamma curve and it's transition from
linear to non-linear (power function) part.
The linear part ranges from 0 to <0.018 and is computed by the following formula:
V
out
=
4.5
∗
V
in
The maximum value in this range is:
V
out,min
=
lim
V
in
→
0.018
(
4.5
∗
V
in
)=
4.5
∗
0.018
=
0.081
The non-linear part ranges from 0.018 to 1 and is computed by the following formula:
V
out
=
1.099
∗
V
in
0.45
−
0.099
The minimum value in this range is:
V
out,min
=
1.099
∗
0.018
0.45
−
0.099
=
0.081 ...
To avoid a discontinuity in the gamma-function select the brightness (offset) for the non-
