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Color Segmentation of Vehicle License Plates in the RGB Color Space Using Color Component Binarization  

Jung, Min Chul (Dept. of Computer System Engineering, Sangmyung University)
Publication Information
Journal of the Semiconductor & Display Technology / v.13, no.4, 2014 , pp. 49-54 More about this Journal
Abstract
This paper proposes a new color segmentation method of vehicle license plates in the RGB color space. Firstly, the proposed method shifts the histogram of an input image rightwards and then stretches the image of the histogram slide. Secondly, the method separates each of the three RGB color components and performs the adaptive threshold processing with the three components, respectively. Finally, it combines the three components under the condition of making up a segment color and removes noises with the morphological processing. The proposed method is implemented using C language in an embedded Linux system for a high-speed real-time image processing. Experiments were conducted by using real vehicle images. The results show that the proposed algorithm is successful for most vehicle images. However, the method fails in some vehicles when the body and the license plate have the same color.
Keywords
Color segmentation; image segmentation; license plate detection; RGB color; color binarization;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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