TR-33 TR-34 TR-35 Trillium Rhino User's Manual - Frame Grabbers

Trillium User’s Manual 33
These commands control test patterns:
Command
test_set_pattern number
test_start
test_halt
Action
Selects the pattern
Start the test pattern output
Stop the test pattern output and return to normal
operation
3.12 Returning Video Information through the
Serial Port
The camera’s microcontroller has the ability to read corrected or uncorrected
video from the CCD sensor. 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 video information can be sampled through the serial port by issuing the
following command:
get_line channel, sample size
Sample size indicates the number of lines to average (note that the camera
returns only one line, but that line is the average of the sample size). This
command will return the pixel values for one channel. Each value is represented
as an integer from 0 to 255.
Generating Statistics
It is also possible to get some simple statistics from a line by issuing the
command:
get_line_statistics channel, sample size
This command returns the maximum pixel value, minimum pixel value, and
average for one line of video.
If video correction is enabled, both commands will operate on corrected video. If
the correction is disabled, the results returned are from raw image data.
Determining Channel Noise
To determine channel noise, issue the command:
DALSA 03-32-10119-03