SimpleLPR

License Plate Recognition library. Very simple interface. Can process images from a file or from a buffer in memory. Shipped as a .NET assembly for easy integration into C++, C# or scripting languages. It can easily achieve 90% success recognition rate under normal operating conditions. No royalties.
List of supported countries: Albania, Algeria, Argentina, Australia, Austria, Azerbaijan, Belgium, Bolivia, Bosnia and Herzegovina, Botswana, Brazil, Bulgaria, Cambodia, Cameroon, Canada, Cape Verde, Chile, Colombia, Costa Rica, Croatia, Cuba, Cyprus, Czech Republic, Denmark, East Timor, Ecuador, El Salvador, Estonia, France, Georgia, Germany, Ghana, Greece, Guatemala, Honduras, Hungary, India, Ireland, Israel, Italy, Jordan, Kenya, Latvia, Lebanon, Netherlands, Norway, Peru, Poland, Portugal, Puerto Rico, Romania, Russia, Singapore, Slovakia, Slovenia, South Africa, Spain, Sweden, Switzerland, Turkey, United Kingdom, Ukraine, Uruguay, Venezuela and Vietnam.