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The ANPR works operates properly if the following camera specs, installation, and configuration requirements are met:

  • Character height is at least 10p10px, preferably 20p 20px or more;.
  • Minimum resolution is 1280*720, . The recommended resolution is 1920*1080;.
  • Minimum frame rate for the Slow mode 5 fps mode, for is 5 FPS. Minimum frame rate for the Fast mode is 20 fps;FPS.
  • Maximum horizontal angle : is 30°;.
  • maximum Maximum vertical angle : is 45°;.
  • Expected image contrast: the contrast difference between characters of the number plate LP and the background should be at least 20 units with an the image brightness scale of from 0 to 255.