Standard Features AW00097603000
152 Basler aviator GigE
10.2 Gain
The camera’s gain setting is adjustable. As
shown in Figure 38, increasing the gain
increases the slope of the response curve for
the camera. This results in a higher gray
value output from the camera for a given
amount of output from the imaging sensor.
Decreasing the gain decreases the slope of
the response curve and results in a lower
gray value for a given amount of sensor
output.
Increasing the gain is useful when at your
brightest exposure, a gray value lower than
255 (in modes that output 8 bits per pixel) or
4095 (in modes that output 12 bits per pixels)
is reached. For example, if you found that at
your brightest exposure the gray values
output by the camera were no higher than
127 (in an 8 bit mode), you could increase the
gain to 6 dB (an amplification factor of 2) and thus reach gray values of 254.
This section (Section 10.2) describes the basic theory of gain and how gain can
be adjusted "manually", i.e., by setting the value of the individual gain related
parameters.
The camera also has a Gain Auto function that can automatically adjust the gain.
Manual adjustment of the gain parameters will only work correctly if the
Gain Auto function is disabled.
For more information about
auto functions in general, see Section 10.7 on page 171.
the Gain Auto function in particular, see Section 10.7.5 on page 180.
Note that on cameras delivered from the factory, all auto functions will become
disabled whenever you power on or reset the camera.
To change this behavior, you must change the configuration set settings. For more
information about configuration sets, see Section 10.19 on page 254.
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