Falcon 4M Camera Manual
Teledyne DALSA
03-032-20044-03
55
Calibrating Individual Pixels
Pu rp ose:
Sets an ind ivid ual pixel‘s PRNU coefficient.
Syntax
spc
x y i
Syntax Elem ents:
x
The p ixel colu m n nu m ber from
1
to
2352
.
y
The p ixel row nu m ber from
1
to
1728
.
i
Coefficient valu e in a range from
0
to
12287, 28671, or
61439 (spm 4,8, or 16)
w here
PRN U m u ltip lier = 1 + (
4096
i
)
N otes:
The
spc
com m and is not available w hen the cam era is u sing
the factory calibrated coefficients (
csn 0-2
). You m u st select
the u ser coefficient set (
csn 3-5
) before you can p erform
PRN U calibration. An error m essage is retu rned if you attem p t
to p erform PRN U calibration w hen u sing
csn 0-2
. To retu rn
the cu rrent
csn
nu m ber, send the com m and
get csn
.
Althou gh in theory a u ser can op tim ize coefficients on a p ixel-
by-p ixel basis, in p ractice this becom es u nm anageable as there
are over 4 m illion p ixels. Therefore, coefficient op tim ization via
this com m and is d iscou raged .
Exam p le:
spc 10 50 500
3.7.6 Saving, Loading and Resetting Coefficients
Saving the Current PRNU Coefficients
Pu rp ose:
Saves the cu rrent PRN U coefficients to non -volatile m em ory.
Syntax:
wpc
N otes:
The
wpc
com m and is not available w hen the cam era is u sing the
factory calibrated coefficients (
csn 0-2
). You m u st select the
u ser coefficient set (
csn 3-5
) before you can p erform PRN U
calibration. An error m essage is retu rned if you attem p t to
p erform PRN U calibration w hen u sing
csn 0-2
. To retu rn the
cu rrent
csn
nu m ber, send the com m and
get csn
.
Exam p le:
wpc
Saving the Current FPN Coefficients
Pu rp ose:
Saves the cu rrent FPN coefficients to non -volatile m em ory.
Syntax:
wfc
N otes:
The
wfc
com m and is not available w hen the cam era is u sing the
factory calibrated coefficients (
csn 0-2
). You m u st select the
u ser coefficient set (
csn 3-5
) before you can save FPN