Dalsa Spyder2 S2-1-40 Series, User Manual

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33 Spyder2 User’s Manual
03-32-10091-04 DALSA
3. Instruct the camera to perform a white light calibration using the command
ccp
. The
camera will respond with OK> if no error occurs.
To perform a white light calibration with an analog gain value:
Use the
ccp [i]
command. When the optional parameter is provided the analog gain
is adjusted to produce an average white pixel level that is equivalent to the parameter.
This command sets the analog gain first to
i
before calculating the PRNU coefficients
range from 64 to 251DN for 8-bit data mode, and 256 to 1007DN for 10-bit data mode.
If value is left blank, current gain values are used.
4. After the calibration is complete, you can save these settings to non-volatile memory
so they will be remembered after power-down. To do so, issue the command
wpc
.
Returning Calibration Results and Errors
After calibration, you can retrieve the results using the command
dpc
. This function
returns all the pixel coefficients in the order FPN, PRNU, FPN, PRNU… The camera also
returns the pixel number with each coefficient.
To set a range for the returned coefficients provide an optional pixel start and end value:
Example: display pixel coefficient from pixel 10 to 20
dpc 10 20
The command
gcp
returns all other settings.
3.15 Setting and Reading FPN Coefficients
You can set or read an individual pixel’s FPN coefficient.
To set the FPN coefficient, use the command:
Syntax:
sfc i i
Syntax Elements:
i
The pixel number from
1
to the pixel count.
i
Coefficient value in a range from
0
to
127
.
Example:
sfc 10 50
To read the FPN coefficient, use the command:
Syntax:
gfc i
Syntax Elements:
i
The pixel number to read.
Example:
gfc 10