License Plate Localization and Storage Method

Though several effective image processing algorithms are created nowadays, their application is often limited by huge computation requirements, making real time operation impossible. Two major issues can be distinguished in license plate number identification, i.e. the localization of the number plate in the picture and the recognition of characters within the identified area. Neither of the tasks mentioned is easy, requiring considerable processing time, but some measurements indicate that finding and extracting characters often takes 20-25 times longer than recognizing them. The localization method introduced in the following are intended to reduce this difference. The paper also introduces wavelet-transformation based solution for efficient storage of cars´ pictures.