![background image](http://html1.mh-extra.com/html/illunis/rmv-11002/rmv-11002_operation-manual_2044107096.webp)
RMV Operations Manual Revision Copyright illunis LLC, 2014
Page 96
6.10: Image Detectors
White Balance / GNU
The RMV can be configured as a color camera by
utilizing a Bayer patterned sensor. For optimum pro-
cessing of the Bayer pattern the gains of the two green
pixels within each pattern must be matched for uni-
formity. The RMV incorporates a special circuit that
measures a 32x32 pixel area (consisting of 16x16
Bayer quads) for brightness of each of the Bayer col-
ors. Each of the Bayer colors is integrated over the
32x32 pixel area and are read from the CL detector
circuit. The detector can be selected for the left side
tap or the right side tap. Wait 2 VSYNCS after chang-
ing this bit before reading the GNU/WB data.
Serial Commands
Target
Index
Command
R/W Description
04
1b
Read WB/GNU detector
R
0x0019 = clr0 (GREEN-RED)
0x001a = clr1 (RED)
0x001b = clr2 (BLUE)
0x001c = clr3 (GREEN-BLUE)
04
35
WB/GNU tap select
R/W 0x0000 = left tap (Power on default)
0x0001 = right tap
Quick FAQ’s:
►To use the detectors for white balance place the
detector location on a calibrated gray color patch
and adjust the RGB values to be the same.
►To use the detectors for GNU place the detector
location on a uniform green patch and balance the
Green values to be the same.
►The detector window can be seen by activating the
AE detector window. The WB/GNU is the small
window in the center.
►Wait 2 vsyncs after selecting or changing the WB/
GNU detector settings before reading the detector .
►The WB/GNU detector is read as 16 bit value while
the OSD is 8 bit.
►Note: Some sensors can have colors in another
order from the diagram below.
Left Side GNU/WB
Detector
Right Side GNU/WB
Detector
The four colors of the Bayer pattern
CLR1
CLR0
CLR3
CLR2