License plate recognition,   LPR is based on computer technology, image processing technology and fuzzy recognition to establish vehicle feature model and recognize vehicle features, such as license plate, vehicle type and color. It is a special computer vision system with a specific target as the object. It can automatically extract the license plate image from an image, segment the characters automatically, and then recognize the characters. It uses advanced image processing, pattern recognition and artificial intelligence technology to process the collected image information, and can automatically recognize the number and number of the license plate in real time Letters and Chinese characters, and give the recognition results directly, which makes the computerized monitoring and management of vehicles become a reality.