The License Plate Recognition Technology Based on Digital Image Processing
A rapid and convenient method of license plate recognition is discussed. The color plates are preprocessed by transform gray-scale transformation and image enhancement. The license plate is located by edge detection and region search algorithm, and the character segmentation is made by projection. Finally, the template is matched, and the license plate number is recognized quickly and accurately. The experiment shows that the method used in this paper can achieve better recognition results.
J. H. Zhu et al., "The License Plate Recognition Technology Based on Digital Image Processing", Advanced Materials Research, Vol. 267, pp. 778-782, 2011