Piranha Color Camera User’s Manual
42
DALSA
03-032-10211-03
9/27/2007
Notes:
Analog gain calibration requires constant light on a clean, white reference. White
plastic or white ceramic is ideal.
If very few tap pixels are within the ROI, gain calculation may not be optimal.
When all taps are selected, taps outside of the ROI are set to the average gain of the
taps that are within the ROI.
Perform analog gain algorithms before performing FPN and PRNU calibration.
All digital settings affect the analog gain calibration. If you do not want the digital
processing to have any effect on the camera gain calibration, then turn off all digital
settings by sending the commands:
,
,
4096
, and
sab 0 0
.
Example:
ccg 2 0 3040
Related
Commands:
Setting Analog Offset
Purpose:
Sets the analog offset. The analog offset should be set so that it
is at least 3 times the RMS noise value at the current gain.
DALSA configures the analog offset for the noise at the
maximum specified gain and as a result you should not need to
adjust the analog offset.
Syntax:
sao t i
Syntax Elements:
t
Tap selection. Use
0
for all taps. Color selection limits the
taps that may be selected by this command. See
scl
for
further information.
i
Offset value in a range from
0
to
255
DN (12 bit LSB).
Notes:
To return the current analog offset value, use the command
Example:
sao 2 35
Related Commands:
3.15 Flat Field Correction
Flat Field Correction Overview
This camera has the ability to calculate correction coefficients in order to remove non-
uniformity in the image. This video correction operates on a pixel-by-pixel basis and
implements a two point correction for each pixel. This correction can reduce or
eliminate image distortion caused by the following factors:
Fixed Pattern Noise (FPN)
Photo Response Non Uniformity (PRNU)
Lens and light source non-uniformity Correction is implemented such that for each
pixel:
Note:
If your
illumination
or white
reference
does not
extend the
full field of
view of the
camera, the
camera will
send a
warning.
Summary of Contents for PC-30-02K80-R
Page 6: ...Piranha Color Camera User s Manual 6 DALSA 03 032 10211 03 9 27 2007...
Page 32: ...Piranha Color Camera User s Manual 32 DALSA 03 032 10211 03 9 27 2007 Exposure Modes in Detail...
Page 74: ...Piranha Color Camera User s Manual 74 DALSA 03 032 10211 03 9 27 2007...
Page 90: ...Piranha Color Camera User s Manual 90 DALSA 03 032 10211 03 9 27 2007...
Page 92: ...Piranha Color Camera User s Manual 92 DALSA 03 032 10211 03 9 27 2007...
Page 94: ...Piranha Color Camera User s Manual 94 DALSA 03 032 10211 03 9 27 2007...
Page 96: ...Piranha Color Camera User s Manual 96 DALSA 03 032 10211 03 9 27 2007...
