Teledyne DALSA Piranha 2 P2-2x-01K40, Руководство пользователя

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32 Piranha 2 User’s Manual
03-032-00493-14 Teledyne DALSA
Setting Analog Offset
To set the an alog offset of th e cam era, u se the com m an d :
Syntax: sao t i
Syntax Elem ents: t
Tap selection. Allow able range is 1 to 4, or 0 for all tap s.
i
Analog offset valu e. Allow able range is 0 to 1023.
N otes:

The offset increases linearly w ith higher valu es. A valu e of
100 d oes
not equ al an offset of 100DN .

The resu lting analog offset valu e d ep end s on other cam era
p aram eters su ch as tem p eratu re, line rate, and gain.

The offset for calibrated and u ncalibrated vid eo is set a nd
saved sep arately.
Exam p le:
sao 0 200
Subtracting Offset or Background
To su btract the vid eo scene offset or any other backgrou n d from the ou tp u t vid eo sign al,
u se the com m and :
Syntax: ssb t i
Syntax Elem ents: t
Tap selection. Allow able range is 1 to 4, or 0 for all tap s.
i
Su btracted valu e in a range from 0 to 511.
N otes: 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 . Use the
ssg
com m and
to correct for th is. See section 3.13 Setting Gains for d etails on the
ssg
com m and .
Exam p le: ssb 0 20