Carmen® ANPR/ALPR Software

License plate recognition for applications where accuracy matters


Carmen® is an Automatic Number Plate Recognition software that reads all vehicle plate types in the world – at any traffic speed. Toll collection and congestion charging systems, traffic monitoring and security, speed and journey time measurement, bus lane and traffic light enforcement, parking or access control and many other systems benefit from the fast, exact, automatic identification and recognition capabilities of this ANPR software – since the 1990s, when the solution was first created – and constantly fine-tuned ever since.

The Carmen® ANPR software reads license plates from many image sources remarkably fast and with the highest recognition accuracy in its class. It offers country-independent recognition of not only Latin characters, but also Arabic, Cyrillic, Chinese, Korean, Thai and many more, as well as reflective, non-reflective, personalized and special interest plates that are typical in many U.S. states.

Highlighted features


30,000+ supported plates

… and constantly growing. No matter where your ANPR system is installed, the software will recognize the plates.



Carmen ANPR can process any traffic stream and is not limited to camera brands or models.


Designed for integration

This ANPR software comes with extensive APIs for seamlessly adding ANPR functions to your IT system.


Handles distorted images

Carmen is a flexible ANPR software that offers high performance even if the input is not the most optimal.


Multi-core processing

ANPR is enhanced by the multi-core performance, with options of single, dual and quad-core processing.


All-character coverage

Not only Latin characters, but also Arabic, Cyrillic, Chinese, Bangla, Korean, Thai and many more types are covered.

Design your ANPR system easily with Carmen®

We know that license plate recognition projects are complex – so designed our system to be flexible and we offer multiple versions to adapt to your project needs.

Learn more about hardware key options.

Parking, city or highway

Parking, city or highway

The FreeFlow version offers unlimited capacity while the K version is designed for other, low/medium frequency applications for cost-efficiency. Consult with our sales experts to find out which version is the best for your project.

Geographical coverage

Geographical coverage

In your ANPR project, you might need to capture only local license plates, or have a global coverage – or maybe some part of it. Carmen® offers various geographic ANPR engines to make sure it fits your project.

Processing options

Processing options

Carmen® is available in single, dual and quad-core processing capabilities, with easy upgrade options. Plan your system workload using the flexibility of this ANPR.


“The use of the Carmen engine has produced a very manageable, predictable and cost-effective ALPR solution which ATS utilizes as a valuable, technology based efficiency component, of the services we offer our customers.”

American Traffic Solutions


Traffic security systems

Modern traffic systems utilize license plate recognition to properly identify vehicles and filter out traffic violators, with special analytics to detect speeding, red light crossing, wrong lane usage and more.


Parking & access control

More and more smart parking and access control systems benefit from ANPR, as this function lets them skip ticket usage, track all vehicles, put less workload on security employees and offer a full control of entry/exit movements – using the license plate data.


Tolling & traffic monitoring

ANPR is the soul of any ITS system to identify license plates and automatically detect whether the given car, truck or any other vehicle has the access for the given road – based on their category, weight, or axle number.

Do you need more information? We have already collected and answered the most Frequently Asked Questions.

Check out the FAQ page


Product main feature 1 >99% ANPR accuracy on a global scale
Product main feature 2 160+ known countries, 33 000+ plate types
License location On-Premise
Input type Image
Form of software SDK
Make & model recognition Yes, optional
Supported Operating Systems Windows and Linux (32/64 bit)
Licensing Single, Dual, Quad, Octa
Available neural network controllers Mini PCIe card, PCIe card, USB (internal 4-pin), USB 2.0 - type A
Input BMP, JPEG, PNG, Still image from memory
Output Background color, Character color, Character suggestions, Confidence level (in %) of recognition, Coordinates of plate and every character, Country/State/Province ID, License plate in ASCII or UNICODE format
Trigger Software motion detection, Can be integrated with any trigger
Programming languages on Windows .Net, C/C++, C#, Java, Visual Basic
Programming languages on Linux C/C++, Java
Included in the SDK Demo applications, Sample programs in source code
anpr-input Image
anpr-mmr-option Yes
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