대한한의진단학회지 (The Journal of the Society of Korean Medicine Diagnostics)

대한한의진단학회 (The Society of Korean Mecicine Diagnostics)
권호 표지

RGB 컬러모델에서 자외선 조명하 박락태(剝落苔)의 설태와 설질 사이의 색 강도 차이에 관한 연구

Comparison between Colour Intensity of Tongue Body and That of Tongue Coat under the Ultraviolet Light in RGB system of Peeling Tongue Coat Image

  • 남동현 (상지대학교 한의과대학 진단생기능의학교실) ;
  • 김지혜 (상지대학교 한의과대학 진단생기능의학교실) ;
  • 이우범 (상지대학교 컴퓨터정보공학부) ;
  • 이상석 (상지대학교 한방의료공학과) ;
  • 홍유식 (상지대학교 컴퓨터정보공학부)
  • Nam, Dong-Hyun (Department of Biofunctional Medicine and Diagnosis, College of Korean Medicine, Sangji University) ;
  • Kim, Ji-Hye (Department of Biofunctional Medicine and Diagnosis, College of Korean Medicine, Sangji University) ;
  • Lee, Woo-Beom (Department of Computer Science Engineering, Sangji University) ;
  • Lee, Sang-Suk (Department of Oriental Biomedical Engineering, Sangji University) ;
  • Hong, You-Sik (Department of Computer Science Engineering, Sangji University)
  • 투고 : 2011.07.14
  • 심사 : 2011.08.12
  • 발행 : 2011.08.31
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초록

Objectives: The objective of this study is to compare the colour intensity of tongue body and that of tongue coat under the visible light and the ultraviolet light. Methods: We selected 7 subjects with completely or partially peeled tongue coat among the recruited 94 adults for the experiment. We took each tongue picture under the visible light and the ultraviolet light (315-400 nm) and then extracted sample images from the tongue body and tongue coat regions. Mean, median and mode of colour intensity from the sample images were calculated in 256 RGB system. Results: The green and the blue colour intensities of the tongue coats were significantly higher than those of the tongue bodies under the visible light. In all channels, the red, green and blue, the colour intensities of the tongue coats were significantly higher than those of the tongue bodies under the ultraviolet light. The colour differences between tongue coats and tongue bodies under the ultraviolet light were significantly higher than the colour differences under the visible light. Especially the colour difference under the ultraviolet light was highest in the green channel. Conclusions: We suggested that green colour image of the RGB system taken under the ultraviolet light could be used for more easy separating tongue coat region from tongue body.

키워드

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