Instruction manual
Marlin Technical ManualV.2.7.0
70
Description of the data path
The algorithm is based on the assumption that the R-G-B component sums of the
samples shall be equal, i.e., it assumes that the mean of the sampled grid pixels
is to be monochrome.
Auto shutter
In combination with auto white balance, all Marlin CCD models and CMOS models
are equipped with 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
Target grey level parameter in SmartView corresponds to
Auto_exposure register 0xF0F00804 (IIDC).