An Efficient Method of License Plate Location in Complex Scene

A novel license plate (LP) positioning algorithm is proposed in this paper. In this method, firstly, the input image is preprocessed. Then, the texture feature is used to remove most of disturbance. After that, the regions which have the structure and texture similar to the license plate are extracted. Finally, Pseudo-region is eliminated and true LP is precisely located. The working principle is taking full advantage of plate shape, texture characteristic and sharp-cut contrast to choose candidate areas, which simplify plate locating to a robust and efficient process.