Dalsa Piranha ES-80-08k40-00-R User Manual page 62

62
Setting Digital Offset
Purpose:
Syntax:
Syntax Elem ents:
N otes:
Related Com m and s:
Exam ple:
FPN Correction
Performing FPN Correction
Syntax:
Syntax:
N otes:
Related Com m and s:
Exam ple:
03-032-20070-02
Sets the d igital offset. Digital offset is set to zero w hen you
perform FPN correction (ccf
perform FPN correction, you can partially rem ove FPN by
ad justing the d igital offset.
sdo t i
t
Tap selection. Allow able range is 1 to num ber of CCD taps,
or 0 for all taps.
i
Subtracted offset value in a range from 0 to 511 (12-bit LSB).

When su btracting a d igital valu e from the d igital vid eo
signal, the ou tp u t can no longer reach its m axim u m u nless
you apply d igital gain u sing the
previou s section for d etails on the
ssg, ccf
sdo 0 100
Perform s FPN correction and elim inates FPN noise by subtracting
aw ay ind ivid ual pixel d ark current. For a com plete d escription on
how to use this com m and , see the Flat Field Correction Overview
on page 58.
ccf

Before perform ing this com m and , stop all light from
entering the cam era. (Tip: cover lens w ith a lens cap.)

Perform all analog and d igital ad ju stm ents before
perform ing FPN correction.

Perform FPN correction before PRN U correction.

ccf
The com m and is not available w hen the CCD d irection
is externally controlled (
page 26). Direction control m u st be stable w hile the cam era
is calcu lating coefficients.

Available in TDI Mod e only.

Save coefficients before changing d irections, changing
operating m od e, or pow ering off.
ccp, cpa
ccf
Piranha ES-xx User Manual
com m and ). If you are unable to
ssg
com m and . See the
ssg
com m and .
scd 2
) (see Direction Control on
Teledyne DALSA