Establishment of a database for skin color card reflectance and spectra
10.16352/j.issn.1001-6325.2024.12.1696
- VernacularTitle:皮肤色卡反射率及图谱数据库的构建
- Author:
Hongyan MA
1
;
Hongwei WANG
Author Information
1. 中国医学科学院 北京协和医学院 北京协和医院 皮肤科,北京 100730
- Keywords:
skin pigmentation;
skin color card;
reflectance spectra;
Munsell color system;
spectral database
- From:
Basic & Clinical Medicine
2024;44(12):1696-1701
- CountryChina
- Language:Chinese
-
Abstract:
Objective To construct a database comprising the reflectance spectra,data,and corresponding color and mode parameters using 110 skin color cards from the Pantone Skin Tone Guide(PSTG).Methods The meas-urement of reflectance spectrum was conducted on 110 internationally recognized skin color cards from the PSTG and the dorsal hand skin of five healthy individuals.Comparative analysis of the reflectance spectra between the col-or cards and the normal skin was performed.The collected data,images,and parameters of five color models were summarized into a database.Results Significant absorption features were observed in the ultraviolet range of 350-400 nm.In the visible light range of 400-780 nm,the reflectance curves varied with value and chroma,but all ex-hibited characteristic peaks were around 590 nm.When saturation was constant,a decrease in brightness resulted in reduced reflectance,indicating that lower brightness tends towards black.When brightness was constant,changes in saturation led to increased differences in reflectance,making colors more vivid.The in vivo experiments showed consistent results with the aforementioned observations.Conclusions The reflectance spectra of the color cards are related to the composition and surface structure of the skin.This database can provide valuable data support for medical research,clinical practice,and other related fields.
