Parameters and Commands
Bonito Technical Manual
V2.2.1
49
Dark value offset (W)
This value is an 8-bit parameter which is added to the pixel data. This parameter
adjusts the dark level and avoids clipping of pixels to black in low light
situations. The eight bits are aligned to the lowest significant bit of the 10-bit
raw pixel data from the sensor. Thus if the digital gain is not active (
G=0
), each
increment of four increases the output grey level just for one count.
Note
•
The effective image size and also the frame rate depend
on the corresponding camera settings such as e.g.
D
,
N
or
M
. Edge markers are only fully visible if all 1726 active
lines are output.
•
The digital gain setting
G
also applies to the test
image, but the FPN correction
C
is temporary disabled.
Setting
Function
U=0
Normal image output.
U=1
Enable metadata overlay
The overlay occupies the first (top left) 8 pixels of each frame.
Metadata format for the left Camera Link channel (connectors
O2/O1 or CL1/CL2):
•
Pixel offset 0–3 (4 bytes): constant ASCII characters
CM4L
•
Pixel offset 4–7 (4 bytes): 32-bit frame counter, LSB first
(Intel format)
Metadata format for the right Camera Link channel (connectors
O4/O3):
•
Pixel offset 0–3 (4 bytes): constant ASCII characters
CM4R
•
Pixel offset 4–7 (4 bytes): 32-bit frame counter, LSB first
(Intel format)
U=10
Enable test image generator. Full test image appears with
N=6BD
,
I=1
,
G=0
and
D=0
.
U=11
Enable metadata overlay and test image generator.
Others
Reserved for future use
Table 20: Trigger source selection (T)
