Digital analysis of the color space of strip-and spiral-shaped black tea made from Huangjinya and population resources
The digital evaluation method based on color space was used to study the difference of color quality of two kinds of black tea with different shapes.The fresh leaves of population resources and Huangjinya variety were processed into strip-shaped and spiral-shaped black tea respectively,furthermore,the results of color matching card and multivariate visualization were obtained and compared with the results of artificial sensory evaluation.The percentage of black of strip-shaped dry tea is significantly higher than that of spiral,the percentage of orange of strip-shaped dry tea is significantly higher than that of spiral,and the mean value of H and V components of black tea of Huangjinya is significantly higher than that of population resources,the effect of varieties on the color of spiral tea was greater than that of strip tea.The digital evaluation technique of HSV color space can accurately quantify and visualize the difference of color features that can not be recognized by human eyes,it has good application prospect in objectivity,traceability and digital storage of tea color quality evaluation.
black teadigital evaluationHSV color spacecolor quality
万方数据
维普
