Research on Image Preprocessing Algorithm of License Plate Recognition System

ITS (Intelligent Transport System) can not only be used in public transport fields such as expressway ETC lanes and traffic guidance, but also can be used in fields such as car theft prevention, community guards, parking fees, etc. For cars, the license plate is the only sign to prove their identity, so in traffic management, obtaining a license plate can successfully solve various problems. Therefore, people have paid more and more attention to the automatic license plate recognition technology. License plate location, character cutting, character recognition and post-processing are the key technologies of the automatic license plate recognition technology.