Setting The Gain With Vertical Binning Enabled - Basler A102K User Manual

Operation and Features

3.6.1.2 Setting the Gain with Vertical Binning Enabled

If you know the decimal number (DN) setting for the gain on your camera, the equivalent decibel
value can be calculated using one of the following equations.
When the gain setting is between 192 DN and 511 DN, the gain curve follows a (1+x)/(1-x) shape,
which is similar to a linear-in-dB shape.
When DN setting = 192 to 511
From gain setting 512 DN to gain setting 1023 DN, the curve follows a linear-in-dB shape:
When DN setting = 512 to 1023
If the Vertical Binning feature is enabled, the gain settings result in the following amplifications:
Decimal Number (DN)
192
374
499
656
825
1023
Table 3-2: Examples of Gain Settings in dB (with Vertical Binning Enabled)
In normal operation, a gain setting lower than 192 (0x00C0) should not be used. When
the gain setting is lower than 192, the sensor output signal that is mapped to the input
of the ADC will not be linear.
3-18
DRAFT
dB
dB
Hexadecimal dB
0x00C0 0
0x0176 6
0x01F3 12
0x0290 18
0x0339 24
0x03FF 31
658 + DN
æ
=
------------------------ -
20 x log
658 DN –
10
=
´
0.0354 DN – 5.221
Factor
X1
X2
X4
X8
X16
X35.5
ö - 5.221
k
BASLER A102