Journal of the Semiconductor & Display Technology (반도체디스플레이기술학회지)

The Korean Society Of Semiconductor & Display Technology (한국반도체디스플레이기술학회)
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Color Segmentation of Vehicle License Plates in the RGB Color Space Using Color Component Binarization

RGB 색상 공간에서 색상 성분 이진화를 이용한차량 번호판 색상 분할

  • Jung, Min Chul (Dept. of Computer System Engineering, Sangmyung University)
  • 정민철 (상명대학교 공과대학 컴퓨터시스템공학과)
  • Received : 2014.11.28
  • Accepted : 2014.12.22
  • Published : 2014.12.31
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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

References

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