Why does increasing camera gain make plate recognition worse?

Answered by ANPR AI·Sourced

Short answer

Gain can add noise that obscures character edges.

Explanation

A brighter image can still contain less usable detail.

Things to check

  • Night frames
  • Gain level
  • Illumination

What to do

Reduce automatic gain and improve lighting. Compare plate readability before and after; apply these optical principles without copying old software settings.

Source

XProtect VMS Administrator Manual 2019 R2

Scope and version

2019 R2; optical guidance, not current software requirements

ANPR Edge

Skip the dedicated ANPR camera. Read plates from the cameras you already have.

ANPR Edge is plate-recognition software that runs on a PC at your site and works with ordinary IP cameras, so plate reads no longer depend on one vendor's camera, NVR or firmware.

  • Works with standard IP cameras over RTSP
  • One license per location covers every camera
  • Runs on a Windows PC or Mac you own

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