Instruction manual

Description of the data path
Guppy PRO Technical Manual V2.0.3
91
Auto gain
All Guppy PRO cameras are equipped with auto gain feature.
When enabled auto gain adjusts the gain within the default gain limits or
within the limits set in advanced register F1000370h in order to reach the
brightness set in auto exposure register as reference.
Increasing the auto exposure value (aka target grey value) increases the
average brightness in the image and vice versa.
The applied algorithm uses a proportional plus integral controller (PI control-
ler) to achieve minimum delay with zero overshot.
The following tables show the gain and auto exposure CSR.
Note

Configuration
To configure this feature in an advanced register: See Table
123: Advanced register: Auto gain control on page 234.