WTCI Tongue Coating Evaluation by analyzing a Ultraviolet Rays Tongue Image Channels

자외선 혀 영상 채널 분석에 의한 WTCI 설태 평가

  • Received : 2015.05.11
  • Accepted : 2015.08.08
  • Published : 2015.07.30


A tongue coating evaluation method for WTCI(Winkel Tongue Coating Index) is proposed in this paper, which is used as the diagnostic criteria in the tongue diagnosis. This method uses the color channel analysis and tongue coating extraction from the ultraviolet tongue image. Proposed method analyzes the histogram distribution of the respective color channel for extracting a tongue coating, and performs the verification test from the selected color channel in the tongue coating extraction. Also, Objectivity of the tongue diagnostic criteria is verified by the artificial sample and real-tongue image experiments. In order to evaluate the performance of the proposed Computerized Assistant WTCI Evaluation method, after verifying a measurement accuracy by using the artificial sample images, and applying to the various real-tongue image of subjects. As a result, the proposed WTCI method is very successful.


Supported by : 상지대학교


  1. G. Kim, "the past and future trends in tongue diagnosis", IEIE, vo.37(7), pp.702-211, 2010. 7.
  2. Y. Wang, et al., "Region partition and feature matching based color recognition of tongue image", Pattern Recognition Letters, vol.28(1), pp. 11-19, 2007. 1.
  3. X. Wang, "A high quality color imaging system for computerized tongue image analysis", Expert Systems with Applications, vol.40(15), pp. 5854-5866, 2013. 11.
  4. C. Jung, et al., "Review on the current trends in tongue diagnosis systems", Integrative Medicine Research, vol.1(1), pp. 13-20, 2012. 12.
  5. Boyeon Kim and Kyungmo Park, "Development of Digital Tongu Inspection Acquirement and Management System for Tongue Diagnosis", The Korea Institute of Oriental Medical Diagnostics vol.6(1), pp. 65-78, 2002.
  6. E. G. Winkel, et al., "Clinical effects of a new mouthrinse containing chlorhexidine, cetylpyridinium chloride and zinc-lactate on oral halitosis", Journal of Clinical Periodontology, vol.30(4), pp.300-306, 2003.
  7. Woobeom Lee, et. al., "Coated Tongue Region Extraction using the Fluorescence Response of the Tongue Coating by Ultraviolet Light Source", The Journal of The IIBC, Vol. 12(4), pp. 181-188, 2012. 8.
  8. Rafael C. Gonzalez, "Digital Image Processing Using MATLAB", Prentice Hall, 2003
  9. J. Canny, "A Computational Approach to Edge Detection", IEEE Transactions on Pattern Analysis Machine Intelligence, vol.8(6), pp.679-698, 1986.
  10. W. Tomaszewski, "The fluorescence phenomenon of the tongue." British Medical Journal, 1: pp. 117-120, 1951.
  11. Woobeom Lee, "Implementation of Computerized Assistant Diagnosis Software for Tongue Diagnosis in the Oriental Medicine", Journal of the Institute of Electronics Engineers of Korea(CI), vol. 51(6), pp. 175-182, 2014. 06.