Dalsa Spyder 3 GigE SG-10-01k40-00-R, User Manual

Page: 87 / 121

Spyder 3 GigE User’s Manual
DALSA 03-032-10158-09
87
A4.2 Returning Video Information
The camera’s microcontroller has the ability to read video data. This functionality can be
used to verify camera operation and to perform basic testing without having to connect
the camera to a frame grabber. This information is also used for collecting line statistics
for calibrating the camera.
Returning a Single Line of Video
Purpose: Returns a complete line of video (without pixel coefficients
applied) displaying one pixel value after another. After pixel
values have been displayed it also displays the minimum,
maximum, and mean value of the line sampled within the region
of interest (the region of interest command is explained in section
293H
A2.1 Setting a Region of Interest (ROI)).
Use the
gl
command, or the following
109H
gla
command, to ensure
the proper video input range into the processing chain before
executing any pixel calibration commands.
Syntax:
gl x1 x2
Syntax Elements:
x1
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
110H
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
111H
gcp
command or
112H
get
css
.
Related Commands:
113H
gla ,
114H
ccf ,
115H
ccp ,
116H
cpa
Example:
css 1024