@article{Xu2016, 
author = {Manfei Xu and Chenzhao Du and Na Zhang and Xinyuan Shi and Zhisheng Wu and Yanjiang Qiao},
title = {Color spaces of safflower (Carthamus tinctorius L.) for quality assessment},
year = {2016},
journal = {Journal of Traditional Chinese Medical Sciences},
volume = {3},
number = {3},
pages = {168-175},
keywords = {Computer vision, Carthamus tinctorius L., Color, Quality evaluation},
url = {https://www.sciopen.com/article/10.1016/j.jtcms.2016.11.004},
doi = {10.1016/j.jtcms.2016.11.004},
abstract = {ObjectiveIn this study, safflower (Carthamus tinctorius L.) was taken as a representative example to examine the application of color characteristics to evaluate quality.MethodsA computer vision system was established for the objective and nondestructive assessment of color using image processing algorithms. Color parameters were investigated based on the RGB, L*a*b and HSV color spaces. The content of hydroxysafflor yellow A (HSYA), a major bioactive constituent of safflower, was determined by high-performance liquid chromatography. The relationship between HSYA content and color values was investigated by Pearson correlation analysis. A multiple linear regression model was established to predict the HSYA content from color values.ResultsThe red color and lightness of safflower were found to be significantly related to HSYA content. The prediction equation obtained by multiple regression was reliable with an R2 value of 0.805 (P <.01).ConclusionThe results suggest that the computer vision technique could be used as a promising and non-destructive technology for color measurement and quality evaluation of CHM.}
}