PHOTONIS Nocturn - Agc Commands; Table 13 AGC Commands

PHOTONIS | 18
NVT 200-LC-0103
Revision: D
Page 18 of 43
Command
Optional Payload
Description
1
2
3
Sets the camera video main frame rate to 100Hz
Sets the camera video main frame rate to 50Hz
Sets the camera video main frame rate to 30Hz
video hist enable
0
1
Disables histogram hardware
Enables histogram hardware
video hist limits
[height] [width]
Set histogram image limits
video hist print
Print histogram information on the console
video hist roi
[left][right][top][bot]
Sets the region of interest for the histogram
video hist status
Displays on the console the histogram settings and current
metrics
video pan
[x] [y]
Pan the center image while in zoom to the XY coordinate
(positive coordinate is down/right of center with standard
imaging lens)
video shname
[filename]
Loads convolution filter with the flash name [filename].
Convolution filter is then enabled/disabled using the “video sf”
command
video tp
0
1
Video test pattern generator set to OFF
Video test pattern generator set to ON
video trig polarity
0
1
External strobe trigger polarity set to active high
External strobe trigger polarity set to active low
video trig delay
XX
Sets delay in micro seconds between start of new frame to
the strobe output. Valid value range from 0 to 16000000.
video trig width
xx
Sets strobe output pulse width. Valid value range from 0 to
16000000.
Video trig enable
0
1
Disables the external strobe output
Enables the external strobe output
AGC COMMANDS
A full list of the AGC related control parameters used with the NOCTURN XL can be displayed on the
console by sending “agc status <cr>” at the console terminal. Each command in Table 13 should be
preceded by “agc” before being sent to the camera
Table 13 AGC Commands
Command
Optional Payload
Description
agcupdinterva
xx
Number of histogram readings needed before updating the
gain and exposure parameters
saturationlev
xx
Sets the digital value at which a pixel is considered saturated
bdeltalimlo
xx
Sets the minimum brightness delta between the high and low
limit of the cumulative histogram in conjunction with the
“saturationlev” to determine if the sensor output is saturated
when operating in low light mode
bdeltalim
xx
Sets the minimum brightness delta between the high and low
limits of the cumulative histogram in conjunction with the
“saturationlev” to determine if the sensor output is saturated