Instruction manual

Guppy PRO Technical ManualV4.1.0
86
Description of the data path
The algorithm is based on the assumption that the R-G-B component sums of the
samples are 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, Guppy PRO cameras 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.
The applied algorithm uses a proportional plus integral controller (PI control-
ler) to achieve minimum delay with minimum overshot.
To configure this feature in control and status register (CSR):
Note

Target grey level parameter in SmartView corresponds to
Auto_exposure register 0xF0F00804 (IIDC).
Increasing the auto exposure value increases the average
brightness in the image and vice versa.
Register Name Field Bit Description
0xF0F0081C SHUTTER Pres-
ence_Inq
[0] Presence of this feature:
0: N/A
1: Available
Abs_Control [1] Absolute value control
O: Control with value in the Value field
1: Control with value in the Absolute value CSR
If this bit=1, the value in the Value field will be
ignored.
--- [2..4] Reserved
One_Push [5] Write 1: begin to work (self-cleared after operation)
Read:
1: in operation
0: not in operation
If A_M_Mode = 1, this bit will be ignored.
ON_OFF [6] Write: ON or OFF this feature
Read: read a status
0: OFF
1: ON
Table 46: CSR: Shutter