Dalsa Falcon 4M30, Руководство пользователя

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Falcon 4M Camera Manual
03-032-20044-01 DALSA
46
3.7.3 Selecting the Calibration Sample Size
Setting the Number of Frames to Sample
Purpose: Sets the number of frames to sample when performing pixel
coefficient calculations. Higher values cause calibration to take
longer but provide the most accurate results.
Syntax:
css i
Syntax Elements:
i
Number of lines to sample. Allowable values are
32
,
64
,
128
(factory setting),
256
,
512
, or
1024
.
Notes:
To return the current setting, use the
gcp
command.
Example:
css 1024
3.7.4 Performing FPN Calibration
Calibrating All Camera Pixels
Purpose: Performs FPN calibration and eliminates FPN noise by subtracting
away individual pixel dark current.
Syntax:
ccf
Notes:
Before performing this command, stop all light from entering the
camera. (Tip: cover lens with a lens cap.)
The goal is to subtract all non-uniformities and offsets in order
to obtain a 0DN output in the dark. Analog offset should
therefore be set to 0 since it gets subtracted out during CCF.
Set the digital gain (
ssg
) to X1 since during calibration it gets
forced to X1
Perform FPN correction before PRNU correction.
The
ccf
command is not available when the camera is using the
factory calibrated coefficients (
csn 0-7
). You must select the
user coefficient set (
csn 8-15
) before you can perform FPN
calibration. An error message is returned if you attempt to
perform FPN calibration when using
csn 0-7
.
Example:
ccf