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Information Technology Journal
Year: 2013  |  Volume: 12  |  Issue: 1  |  Page No.: 127 - 133

Implementation and Comparison of the License Plate Algorithms: A Case Study

Zhi-Jiang Xu, Sheng-Feng Yu, Hui Wang, Li-Min Meng and K.L. Du    

Abstract: License plate location is a critical part in the license plate detection and recognition system. It is sensitive to weather, illumination and the size of license plate. A variety of license plate location algorithms is proposed, which have limited adaptability. In order to resolve the above mentioned problem, this study improves the image preprocessing, image filtering and discrimination of pseudo-regions in 6 different algorithms based on the corner detection, on wavelet transform, on HSV color space, on RGB color space, on license plate texture and on the integrated features of license plate respectively. The experiments show that the improved algorithms have strong robust.

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