Dalsa spyder SG-10-01k40, User Manual

Page: 73 / 119

Spyder 3 GigE User’s Manual
DALSA 03-032-10158-06
73
Digital Signal Processing
To optimize camera performance, digital signal processing should be completed after any
analog adjustments.
FPN Correction
Performing FPN Correction
Syntax: Performs FPN correction and eliminates FPN noise by subtracting
away individual pixel dark current.
Syntax:
ccf
Notes: •
Perform all analog and digital adjustments before
performing FPN correction.
•
Perform FPN correction before PRNU correction.
•
Refer to
286H
Calibrating the Camera to Remove Non-Uniformity
(Flat Field Correction)on page
287H
70 for a procedural overview
on performing flat field correction.
•
To save FPN coefficients after calibration, use the
85H
wfc
command. Refer to section
288H
A3.1 Saving and Restoring
PRNU and FPN Coefficients for details.
•
The QuickCam software that ships with the Spyder 3 GigE
camera has a flat field correction wizard. For easy flat field
correction, use the wizard located on the Calibration tab.
•
Related Commands:
86H
ccp ,
87H
wfc
Example:
ccf
Setting a Pixel’s FPN Coefficient
Purpose: Sets an individual pixel’s FPN coefficient.
Syntax
sfc x i
Syntax Elements:
x
The pixel number from
1
to
sensor pixel count
.
i
Coefficient value in a range from
0
to
2047
(12 bit LSB).
Example:
sfc 10 50