Guppy PRO Technical Manual
V4.1.2
86
Color models
Setting LUT = OFF effectively makes full use of the 14-bit by bypassing the LUT
circuitry; setting LUT = ON means that the most significant 12-bit of the 14-bit
are used and further down converted to 10-bit. For models with 12-bit ADC:
the most significant 10-bit of the 12-bit are used.
White balance
There are two types of white balance:
•
one-push white balance
: white balance is done only once (not
continuously)
•
auto white balance
(AWB): continuously optimizes the color
characteristics of the image
Guppy PRO color models have both
one-push white balance
and
auto white
balance
.
Figure 33: Block diagram color camera
Sensor
Analog
Gain
Analog
Offset
Analog
14 bit
White balance
HIROSE I/O
RS232
Test-Pattern
3 x 8 bit
Camera control
14 bit
LUT
12 10
14 bit
Defect pixel
correction
(only CMOS)
14 bit
Horizontal
masking
(only CCD)
ADC
CMOS: the following functions are integrated in sensor:
Sub-sampling, horizontal masking
Hue
Saturation
Color correction
Color conversion
8 bit
8 bit
8 bit
8 bit
8 bit
8 bit
Color
interpolation
Frame
memory
14 bit
IEEE 1394b
interface
1394b
Camera control
*
Some Guppy PRO models deliver 12-bit only.
*
