A Method of License Plate Location Based on Connected Components and Gray Level Jump

doi:10.3969/j.issn.1006-2475.2014.03.025

Abstract

Abstract: In the License Plate Recognition (LPR) system, license plate location is the basic step. A method of license plate location is introduced based on connected components and gray level jump of plate. Firstly, it is detected that whether the license plate has shadow region. Then special binaryzation method is used for shadow license plate. Finally, license plate location is completed using gray level jump. Experiments show that this algorithm is precise for license plate location and robust on light disturbance.

Key words: license plate recognition, license plate with shadow, morphology, gray level jump

CLC Number:

TP391.41

LI Xi-ying1,2,3, LU Lin1,2,3, YU Wen-jin1,2,3. A Method of License Plate Location Based on Connected Components and Gray Level Jump[J]. Computer and Modernization, doi: 10.3969/j.issn.1006-2475.2014.03.025.

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