Piranha 3 User Manual
DALSA 03-032-10216-02
43
In the following example, analog gain is being set for all taps. The peak value of each tap
within the region of interest is calibrated to the specified target value. All taps completely
outside the region of interest are calibrated to the average analog gain value of the taps
inside the region of interest.
Figure 16: Calibrating Analog Gain for all Taps
Video
Region
of
Interest
V
id
eo
0
12288
4000
9700
2800
After
analog
gain
calibration
Before
analog
gain
calibration
0
4095
ccg 1 0 2800
When
calibrating
all
taps,
taps
completely
outside
the
region
of
interest
(in
this
example,
interleaved
taps
1and
2)
are
calibrated
to
the
average
analog
gain
of
taps
within
the
region
of
interest.
Taps
within
the
region
of
interest
calibrate
to
the
target
value.
Note:
Seams
between
taps
will
be
visible
until
you
perform
white
light
calibration
using
the
command.
ccp
Pixel
Number
Tap
1(odd)
Tap
2(even)
Tap
5(odd)
Tap
6(even)
Tap
7(odd)
Tap
8(even)
Tap
3(odd)
Tap
4(even)
Updating the Gain Reference
To update the analog gain reference:
Purpose:
Sets the current analog gain setting to be the 0dB point. This is
useful after tap gain matching allowing you to change the gain on
all taps by the same amount.
Syntax:
ugr
Summary of Contents for Piranha3
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