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Description of the data path
OSCAR Technical Manual V2.4.0
69
Auto shutter
In combination with auto white balance, Oscar cameras are equipped with an
auto shutter feature.
When enabled, the auto shutter adjusts the shutter within the default shutter
limits or within those set in advanced register F1000360h in order to reach
the reference brightness set in auto exposure register.
Increasing the auto exposure 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.
Note
L
Target grey level parameter in SmartView corresponds to
Auto_exposure register 0xF0F00804 (IIDC).