Simple guide

What is an ANPR camera?

An ANPR camera is used to read vehicle number plates automatically. ANPR stands for Automatic Number Plate Recognition. Some cameras read plates themselves. Others capture images for separate software on a computer or in the cloud.

Last reviewed 2026-10-06 · By the ANPR.software team. Manufacturer information is linked in the sources below.

The short version

Every ANPR system needs a clear image and software to read it. The software can run inside the camera or separately on a computer or in the cloud.

Some standard network cameras can work with separate plate-reading software. They need a close, sharp view of the plate during the day and at night.

Before buying, check where the plates will be read, whether your camera is compatible, and the total camera, software and installation cost.

ANPR cameras at a glance

The main things to know before choosing a camera.

Question	Answer
What it is	A camera used to read vehicle number plates automatically.
Also called	ALPR and LPR: other names for number plate recognition.
How it reads a plate	It finds the plate in an image and turns its letters and numbers into text.
Where the reading happens	Inside the camera, on a separate computer or in the cloud.
Capturing moving vehicles	A fast shutter helps keep moving plates sharp. The right setting depends on vehicle speed and lighting.
Lens needed	A close, clear view of the plate. A zoom lens can help when the camera is further away.
Night-time	Suitable lighting and camera settings keep the plate readable after dark.
Does it need separate software?	A camera with built-in plate reading can read plates itself. A standard camera needs separate software.
What it costs	Prices vary by model and country. Allow for software and installation as well. See camera prices by country
Common uses	Car parks, gates, road tolls, vehicle tracking and police work.

How an ANPR camera reads a plate

The exact steps vary by system, but the process usually looks like this.

1
Find the vehicle
The software finds the vehicle in the camera image so it can look for the number plate.
2
Locate the plate
It finds the number plate on the vehicle. The software needs to support the plate sizes and layouts used in your country.
3
Prepare the plate image
It crops the image around the plate and may correct the angle to make the letters and numbers easier to read.
4
Read the characters
It turns the plate image into letters and numbers. This is called OCR. A confidence score estimates how certain the software is about the result.

Your system can use the plate number and time of reading to log a visit, calculate parking time or open a compatible barrier.

ANPR, ALPR, LPR: is there a difference?

ANPR, ALPR and LPR are names for the same kind of number plate reading. ANPR is common in the UK and Gulf; ALPR and LPR are common in North America.

Ask the seller whether the camera reads plates itself or needs separate software. That difference matters when comparing prices.

Four things to check in a camera

Check these features, then test the camera during the day and at night before buying.

Keep moving plates sharp

A fast shutter reduces blur as a car moves. Check that you can adjust the shutter speed for the speeds and lighting at your site.

Look for: adjustable shutter speed

Get a close view of the plate

The plate needs to be large enough in the image to read clearly. A zoom lens can help. A fixed lens may work if the camera is close enough.

Look for: a clear, close view of the plate

Capture clear plates at night

Headlights and reflective plates can make the numbers hard to see. Test the lighting and camera settings so the plate stays readable after dark.

Look for: suitable lighting and adjustable night settings

Connect to your chosen software

If you use separate software, the camera must provide video or images in a format it supports. Check this before buying a camera that only works through its own app.

Look for: a compatible connection, such as RTSP or ONVIF

Will the camera you already have work?

Use this checklist to decide whether your existing camera is worth testing.

Is one camera pointed at a place where vehicles slow down or stop?
Can you read the plate in its images during the day and at night?
Can you adjust the shutter speed to keep moving plates sharp?
Can you zoom in on the plate, or mount the camera close enough to show it clearly?
Does the camera support the video connection your software needs, such as RTSP or ONVIF?

These checks are a starting point. Test the camera with your chosen software, moving vehicles, and day and night lighting before deciding whether to replace it.

Test your existing camera

What reads the plate?

Choose built-in plate reading or separate software. Each option has different equipment and connection needs.

Reading inside the camera

The camera reads plate numbers itself. Some models also store a list of allowed vehicles and open a compatible barrier without a separate computer. Check which features the model includes.

Useful when the gate must work without a separate computer.

Reading with separate software

A standard network camera captures the image. Software on a computer or in the cloud reads the plate. The camera may cost less, but include the software and computer or cloud costs in your budget.

Useful for car parks and gates where you can connect cameras to a computer or cloud service.

With a paid ANPR Edge licence, plates are read on a Windows PC or Mac at your site. The PC must connect online at least every three days to keep the licence active. Our cloud API reads images sent by your software and needs internet access.

See ANPR Edge See the cloud API

Camera terms, explained

Simple definitions of terms you may see in camera details or an installation quote.

ANPR: Automatic Number Plate Recognition: reading a vehicle’s plate number from an image automatically.
OCR: Optical Character Recognition: software that turns letters and numbers in an image into text.
Varifocal lens: A lens with an adjustable view, so an installer can zoom in on the plate. A motorised lens can be adjusted remotely.
Focal length: A lens measurement in millimetres. A higher value usually gives a closer view of objects at the same distance.
Shutter speed: How long the camera collects light for each image. Faster settings reduce motion blur but need enough light.
Retro-reflective: A surface that sends light back towards its source. Reflective plates can look too bright in night-time camera images.
IR / infrared: Infrared: light used by many cameras to capture images in darkness. Its settings need to keep the plate clear.
WDR: Wide Dynamic Range: balances bright and dark parts of an image. Test its settings because it can affect plate clarity.
RTSP: A way for a network camera to send video to compatible software. Check that both your camera and software support it.
ONVIF: A standard that helps cameras and software work together. Compatibility depends on the features both support.
Wiegand: A wired connection used by some access-control systems. A camera with this output may connect to a compatible barrier controller.
Choke point: A place where vehicles slow down or stop, such as a gate entrance. It is often a good place to capture plates.

Where ANPR cameras are used

Common ways businesses and organisations use plate numbers.

Car parks

Record when a vehicle enters and leaves. A parking system can use those times to calculate the stay and parking charge.

Gates and barriers

Open a compatible barrier for vehicles on an approved list, such as residents or staff. Other visitors can be checked by security.

Road tolls and charges

Identify vehicles for road tolls, congestion charges or emission-zone charges without needing a barrier.

Vehicle tracking at work

Link a vehicle to a delivery, job or customer account at a depot, weighbridge, fuel station or dealership.

What does an ANPR camera cost?

Cameras with built-in plate reading usually cost more than standard cameras. A standard camera also needs software and possibly a computer. Include installation, cables, mounting and any barrier hardware when comparing quotes.

See our country-by-country prices for models, sellers and the date each price was checked.

See camera prices in your country

Frequently asked questions

What does ANPR stand for?

ANPR stands for Automatic Number Plate Recognition. It means reading a vehicle’s plate number from an image automatically. ALPR and LPR are other names for the same technology.

Do I need a special camera for ANPR?

Not always. A standard network camera may work with separate plate-reading software if it captures clear images and supports the software’s connection requirements. Test it during the day and at night before buying a replacement.

How does an ANPR camera work at night?

Suitable lighting, often infrared, helps the camera see the plate after dark. The camera settings must also control blur and glare from headlights and reflective plates. Ask for a night-time test at your site.

How accurate is ANPR?

The camera, software, plate format, lighting and installation all matter. Ask for a test using your plates and expected vehicle speeds, during the day and at night. Compare accuracy figures only when the test conditions are clear.

Can it read plates on fast-moving vehicles?

That depends on the camera, software, lens, lighting and setup. Cars slowing at gates are easier to capture than fast traffic. Check the model’s rated speed and ask for a demonstration at the speeds you expect.

Do more megapixels mean better plate reading?

Not on their own. Higher resolution can help, but the plate still needs to look large and sharp in the image. More megapixels cannot fix motion blur, glare or a poor camera angle.

Can ANPR read Arabic plates?

Some systems can read Arabic and Latin plate characters. ANPR.software supports all six GCC countries. Check that your chosen system supports the countries and plate formats used at your site.

Is ANPR legal?

Rules depend on your country and how you use the system. Check privacy, signage, data storage and installation requirements before using ANPR. In the UK, ICO guidance calls for a privacy impact assessment and clear signs explaining that ANPR is in use.

Sources

Manufacturer specifications and other references used for this guide.

Check your camera before buying a new one

Use our connection guide to test your existing camera with ANPR.software. Check the results during the day and at night.

Test your camera See camera prices