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Are there any freeware LPR (License plate recogniser) libraries or software in .net ?

Also can you list the freeware OCR libraries and software avaliable in .net ?

HotTester
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  • What did your search turn up? – Prescott Feb 13 '12 at 07:15
  • Java ANPR... but i am looking for .net based. – HotTester Feb 13 '12 at 07:26
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    I don't see anything wrong with this question. In fact I think many thousands would be interested in this software. The question is quite clear on what it is asking. My house is in a cul-de-sac. If I could run this software on the images captured by my home security camera and I would be able to give an alarm rightaway if a stranger's car come to this place more than once. – Old Geezer Oct 11 '12 at 02:38
  • Check out OpenALPR (http://www.openalpr.com). It's open source, free and does a great job recognizing plates. – Derrick Johnson Jan 17 '14 at 22:32

1 Answers1

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Check out emgu.cv. It's an open source wrapper for opencv, an open source image analysis tool. Here is an example on how to use it to detect license plates.

My experience is fairly positive as for this just working. It catches the main cases 90% of the time or so I'd say.

DanTheMan
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  • Is this having a stable version ? – HotTester Feb 13 '12 at 11:38
  • I've had no problems with stability with this. They don't specifically list it as stable, but they seem to list the alpha versions as alpha. – DanTheMan Feb 13 '12 at 15:51
  • @DanTheMan Its Mobile version is not free! – Arash Dec 02 '13 at 09:22
  • @HotTester:its mobile version is not free,did you buy it? – Arash Dec 02 '13 at 09:23
  • @DanTheMan Copying the code from that website just gives me loads of errors, including stuff like `'OcrEngineMode' does not contain a definition for 'TesseractCubeCombined'` - which makes it seem like the code is just wrong, as that property does not exist... Please can you assist? – Bassie Oct 03 '18 at 08:36