Instruction manual
Marlin Technical ManualV.2.7.0
214
Configuration of the camera
Autofunction AOI
AUTOFNC_AOI affects the auto shutter, auto gain and auto white balance fea-
tures and is independent of the Format7 AOI settings. If this feature is switched
off the work area position and size follow the current active image size.
As a reference it uses a grid of at least 300 samples equally spread over the area
of interest or a fraction of it. The position and size of the control area (Auto_-
Function_AOI) can be set via the following advanced registers.
The possible increment of the work area position and size is 128 pixel. The cam-
era automatically adjusts your settings to allowed values.
The possible increment of this work-area position and size is 128 pixels. The
camera automatically adjusts the settings to allowed values (see below for valid
values):
Due to the fact that the active image size might not be dividable by 128 without
a remainder, the auto function AOI work-area size might be greater.
This allows for the positioning of the work-area to be at the bottom of the active
image.
Register Name Field Bit Description
0xF1000390 AUTOFNC_AOI Presence_Inq [0] Indicates presence of this
feature (read only)
--- [1..3] Reserved
ShowWorkArea [4] Show work area
--- [5] Reserved
ON_OFF [6] Enable/Disable AOI
--- [7..31] Reserved
0xF1000394 AF_AREA_POSITION Left [0..15] Work area position (left coor-
dinate)
Top [16..31] Work area position (top coor-
dinate)
0xF1000398 AF_AREA_SIZE Width [0..15] Width of work area size
Height [16..31] Height of work area size
Table 116: Advanced register: Autofunction AOI
Region Valid Values
Left, Top 0, 128, 256, 384, 512, 768, 1024…
Width, Height 128, 256, 384, 512, 768, 1024…
Table 117: Legal values for AF_AREA_SIZE