Tongue Color Classification Of Quantitative Research

PurposeIn this study, to make improvement at the objective of the digital tongue inspection and degree of standardization, the colorimetry method was adopted to establish classification system that can reflect the color appearance of the tongue color based on the human eye visual perception characteristics, and extract the typical tongue color samples.MethodTongue color analysis is to quantify the color characteristics of thetongue, accurately express and pass the tongue's color information, provide the basis for clinical diagnosis. The objective measure of the tongue color is ultimately a quantitative measure of the color, the modern color science provides a theoretical support andtechnical means.1. Tongue color classification based on cluster analysis According to the literature survey, the sample size is estimated to be 1500-2500 cases, and the number of each tongue color samples at least 30 cases. Color correction was carried out for each digital image, select CIE lab, CIE lch uniform color space and munsell sequential color system to describes the color information of the tongue Fig. A database was created and the data included hue, lightness, saturation and Munsell number, the application of cluster analysis was used in the study of the tongue color classification.2. Studies of standard Tongue color samples According to the color information of the tongue, we determined the complete coverage of the tongue color distribution area, equidistant division of the color space, extraction the tongue color standard samples based on human visual characteristics.3. The survey of tongue color classification characteristics in mild constitution We compared tongue color standard samples and mild constitution crowd's, observed chromaticity value of the difference between them, determined the similarities and differences of the two sets of tongue color according to color difference.4. Clinical validations of the tongue color classification research achievements Digital evaluation method was used to verify the accuracy of the classification criteria of the tongue color, and the comparison of the color space and cluster centers were carried out between the tongue color disaggregated data and clinical data.Results 1. By using of colorimetry this study found tongue color change in a continuous gradient range concentrate the pink color area.2. The study of tongue color classification based on visual judgment foundthat the tongue color gathered in the space of the red and yellow fields. Male tongue color is dim, female tongue Hue in pale.3. As a whole, tongue color chromaticity data is in a relatively concentrated area. According to the name given by the color Picker software, the pink was the main gathering center of the tongue color. Secondly, the data clustered as about 11 categories, split between each other clearly, aggregation states uniformity within a class.4. This study found that not artificial interpretations of classification results are inconsistent with the artificial judge outcome. The consistent rate of Pale tongue classification between the two groups was 55.56%. other tongue color consistent as follows:light red tongue 31.08%, red tongue 30.75%, dark red tongue 23.99%, purple tongue 47.37%, short dark tongue 19.17%, dark purple tongue 37.97%.5. The overall characteristics of tongue color distribution in mild constitution crowd were closed to medical crowd. Different tongue color data in the color space showing a characteristic of the aggregation state, the central tendency of the data is significant, the boundary between the different data sets was relatively clear, and there is only small amounts of data scattered in the edge position. The spatial distribution of the figure of two sets data class showed the same characteristics.6. The tongue color gamut of clinical collect samples was larger than that of medical populations. The standard tongue color range not yet fully covered the clinical findings, and it need to be further expand the scope of the study and widely collected samples of tongue color.Conclusion1. Application of cluster analysis method in the study of tongue color can reveal the law of tongue colorspace.2. Colorimetric method for the analysis of tongue diagnosis based on human visual can make use of the color values to describe the tongue diagnosis information, provide a common platform for the theory of tongue diagnosis experience and objective analysis; the application of mathematical methods to obtain the color values of the typical color provides a methodological basis for further research.3. A standard condition for the collection and analysis of the tongue color play an important role in tongue color classification study.