- SS-HQ1 Application Notes -
Ver.1.0.0 January 7, 2005
126
10.7. WB
operation
10.7.1. Sequence of Operation
(1)
Processing branches according to the
mode input by the DIP switches or serial
input.
(2) In fixed value mode, the fixed gain is
selected, the signal is sent to the WB gain
amplifier.
(3) In ATW mode, the operation frame is
selected. Next, operations are performed
using the data from the OPD.
(4) The detection data from the OPD is
converted to R/G, B/G and (R-B)/G,
(R+B-2G)/G
format.
(5) In ATW mode, after performing white
detection, the operation frame is judged
and operation shifts to convergence
processing.
Fig 10.7-1 AWB Flow Chart
START
Mode selection
Fixed value mode?
Data input
(R,G,B)
Operation frame
selrction
R/G, B/G,
(R-B)/G, (R+B-2G)/G
Operation frame
judgment
White balance gain
adjustment
RETURN
Fixed gain
White detection
Yes
No
(1)
(3)
(2)
(4)
(5)
RETURN