ALLIED Vision Technologies Guppy F-503 - Manual (Page 120)

Description of the data path
GUPPY Technical Manual V7.1.0
120
The following flow diagram illustrates the one-push white balance
sequence.
Finally, the calculated correction values can be read from the
WHITE_BALANCE register 80Ch.
Auto white balance (AWB)
The auto white balance feature continuously optimizes the color character-
istics of the image.
As a reference, it uses a grid of at least 65535 (2
16
) samples equally spread
over the area of interest or a fraction of it.
Auto white balance (AWB) can also be enabled by using an external trigger.
However, if there is a pause of >10 seconds between capturing individual
frames this process is aborted.
Figure 67: One-push white balance sequence
Pause image
capture
Capture image
via one-shot
Calculate and
set correction
values
Restart image
capture if
necessary
Repeat steps
nine times