Automatic License Plate Recognition
SimpleLPR is a software component aimed at vehicle license plate recognition (see LPR, ANPR).
It has a very simple application programming interface that allows applications to supply a path to an image or a pointer to a buffer in memory, and
return the detected license plate number and its
location in the input image.
It can be used from C++, or any .NET enabled programming languages such as Visual Basic .NET, C#, VB Script, or JScript. Integration is simple and straightforward, as demonstrated in the examples supplied with the SDK.
Typical successful detection rates range from 85% to 95% provided that license plates
are in good condition, unoccluded, and the text height is at least 20 pixels.
- Albania
- Algeria
- Andorra
- Argentina
- Australia
- Austria
- Azerbaijan
- Belarus
- Belgium
- Bolivia
- Bosnia and Herzegovina
- Botswana
- Brazil
- Bulgaria
- Cambodia
- Cameroon
- Canada
- Cape Verde
- Chile
- Colombia
- Costa Rica
- Croatia
- Cuba
- Cyprus
- Czech Republic
- Democratic Republic of the Congo
- Denmark
- East Timor
- Ecuador
- El Salvador
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- Estonia
- Finland
- France
- Georgia
- Germany
- Ghana
- Greece
- Guatemala
- Honduras
- Hungary
- Iceland
- India
- Indonesia
- Ireland
- Israel
- Italy
- Jordan
- Kazakhstan
- Kenya
- Kyrgyzstan
- Latvia
- Lebanon
- Lithuania
- Luxembourg
- Macau
- Malaysia
- Mozambique
- Myanmar
- Namibia
- Netherlands
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- Norway
- Pakistan
- Palestinian National Authority
- Paraguay
- Peru
- Philippines
- Poland
- Portugal
- Puerto Rico
- Republic of the Congo
- Romania
- Russia
- Singapore
- Slovakia
- Slovenia
- South Africa
- Spain
- Sri Lanka
- Sweden
- Switzerland
- Tanzania
- Turkmenistan
- Turkey
- United Kingdom
- Ukraine
- Uruguay
- Uzbekistan
- Venezuela
- Vietnam
- Zimbabwe
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Screenshot
- Windows 10
- Windows 11
- Windows Server 2016
- Windows Server 2019
- Windows Server 2022
- Linux x64
- For best results, input images should feature straight views of license plates, and text on license plates should be horizontally aligned.
- The height of the text on the license plates should be at least 20 pixels.
- Assuming the input images meet the above conditions, the detection accuracy should be around 90%.
Download an unlicensed copy of SimpleLPR with GPU support (81 MB)
or for CPU only (62 MB).
Purchase a licensed copy of SimpleLPR. 
Download SimpleLPR for Linux (x64 only, no CUDA).
Download the SimpleLPR user's guide. 
See the change log.
View sample code.
The unlicensed version will be fully functional during 60 days.
The licensed version costs $450 plus local taxes. Licensing entitles owners to distribute a royalty free unlimited number
of copies of SimpleLPR along with their applications.
You can submit your questions/issues/bug reports/feedback to support@warelogic.com
