AGC off, BW, IR on
AGC low, Color, IR on
Automatic Gain Control can improve overall scene visibility notably.
However, even at low setting AGC produces noise that can ruin license
plate images, also lighter areas tend to bleach out. See illustrations to
the left.
Start with turning AGC off. See the illustration to the left. Set AGC to
low to improve plates visibility unless only other methods are helpful.
Adjust zoom so that real plate pixel width is at least 130px. Consider
adjusting recognition zone to be closer to the centre of the frame to
avoid the IR vignette effect.
NOTE: Do not use WDR as it decreases the shutter speed and may lead
to the blur of the vehicles on footage.
3.1 Configure Initial Camera Settings (Continued)
[Exposure adjustments: Automatic Gain Control]
AGC low, BW, IR on
14 | RoadWatch
Quick Reference Guide
