Study and Realization for License Plate Recognition System

License plate recognition(LPR)system,the important part of the intelligent traffic system,is made up of three parts as license plate orientation,character segmentation and character recognition.In this paper,based on mathematical morphology and edge characteristic analysis,license plate orientation is conducted.After binarization and the adoption of multiple indexes evaluation function for color reverse,characters are segmented on the basis of connected component analysis.The experiment indicates that it is feasible to adopt this algorithm in LPR system.