User`s manual

78 PRELIMINARY Spyder 3 CL User's Manual
03-032-20008-03 DALSA
Pixel start number. Must be less than the pixel end number in
a range from
1 to sensor resolution.
x2
Pixel end number. Must be greater than the pixel start number
in a range from
2 to sensor resolution.
Notes:
•
If x2
≤
x1 then x2 is forced to be x1.
•
Values returned are in 12-bit DN.
Related Commands
roi
Example:
gl 10 20
Returning Averaged Lines of Video
Setting the Number of Lines to Sample
Purpose: Sets the number of lines to sample when using the gla command
or when performing FPN and PRNU calibration.
Syntax:
css m
Syntax Elements:
m
Number of lines to sample. Allowable values are 256, 512,
or
1024 (factory setting).
Notes:
•
To return the current setting, use the gcp command or get
css.
Related Commands:
gla, ccf, ccp, cpa
Example:
css 1024
Returning the Average of Multiple Lines of Video
Purpose: Returns the average for multiple lines of video data (without pixel
coefficients applied). The number of lines to sample is set and
adjusted by the
css command. The camera displays the Min.,
Max., and Mean statistics for the pixels in the region of interest (the
region of interest command is explained in section
Setting a Region
of Interest (ROI)).
Syntax:
gla x1 x2
Syntax Elements:
x1
Pixel start number. Must be less than the column end number
in a range from
1 to sensor resolution.
x2
Pixel end number. Must be greater than the column start
number in a range from
2 to column resolution.
Notes:
•
If x2
≤
x1 then x2 is forced to be x1.
•
Analog gain, analog offset, digital offset, background subtract,
and digital system gain are applied to the data. FPN and
PRNU coefficients are not included in the data.
•
Values returned are in 12 bit DN.
Related Commands:
css, roi
Example:
gla 10 20