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Research Techniques Made Simple: Cutaneous Colorimetry: A Reliable Technique for Objective Skin Color Measurement.
Journal of Investigative Dermatology ( IF 5.7 ) Pub Date : 2020-01-01 , DOI: 10.1016/j.jid.2019.11.003
Bao Chau K Ly 1 , Ethan B Dyer 1 , Jessica L Feig 1 , Anna L Chien 1 , Sandra Del Bino 2
Affiliation  

Skin color evaluation contributes to assessment of an individual's cutaneous phenotype. Skin color changes provide important clues to disease progression or treatment response. Skin color is also a predictor of skin cancer risk. Melanin pigment, blood flow, skin thickness, and photoaging contribute to skin color. Melanin, hemoglobin, bilirubin, and carotene are the primary chromophores of skin color. Their concentrations vary depending on the individual's phenotype, anatomic location, external insults of chemical irritants and UVR, and physiological changes. The evaluation and perception of skin color are often subjective. Objective quantification of skin color can be achieved with colorimetric devices such as tristimulus colorimeters. These devices compute the intensity of light reflected from skin and correlate with pigmentation and erythema. Cutaneous color and color changes can be quantified under color organization systems, such as the CIELAB color space, which is standardized by the Commission Internationale de l'Eclairage (CIE). The CIELAB expresses color's lightness, red/green intensity, and yellow/blue intensity, as L*, a*, and b* values, respectively. Additionally, skin color's full spectral characteristics and cutaneous physiology can be measured with spectrophotometers. This article outlines basic principles of the CIELAB color system and how to optimally use colorimetric devices as a skin research tool.

中文翻译:

研究技术变得简单:皮肤比色法:一种可靠的客观肤色测量技术。

肤色评估有助于评估个体的皮肤表型。肤色的变化为疾病的进展或治疗反应提供了重要的线索。肤色也是皮肤癌风险的预测指标。黑色素色素,血流,皮肤厚度和光老化会导致皮肤变色。黑色素,血红蛋白,胆红素和胡萝卜素是皮肤的主要生色团。它们的浓度取决于个体的表型,解剖位置,化学刺激物和UVR的外部损伤以及生理变化。对皮肤颜色的评估和感知通常是主观的。可以使用比色仪(例如三刺激色度计)实现皮肤颜色的客观定量。这些设备计算从皮肤反射的光的强度,并与色素沉着和红斑相关。可以通过颜色组织系统(例如,由国际照明委员会(CIE)标准化的CIELAB颜色空间)来量化皮肤的颜色和颜色变化。CIELAB将颜色的明度,红色/绿色强度和黄色/蓝色强度分别表示为L *,a *和b *值。此外,可以使用分光光度计测量皮肤的全部光谱特性和皮肤生理。本文概述了CIELAB颜色系统的基本原理,以及如何最佳地使用比色设备作为皮肤研究工具。它由国际照明委员会(CIE)标准化。CIELAB将颜色的明度,红色/绿色强度和黄色/蓝色强度分别表示为L *,a *和b *值。此外,可以使用分光光度计测量皮肤的全部光谱特性和皮肤生理。本文概述了CIELAB颜色系统的基本原理,以及如何最佳地使用比色设备作为皮肤研究工具。它由国际照明委员会(CIE)标准化。CIELAB将颜色的明度,红色/绿色强度和黄色/蓝色强度分别表示为L *,a *和b *值。此外,可以使用分光光度计测量皮肤的全部光谱特性和皮肤生理。本文概述了CIELAB颜色系统的基本原理,以及如何最佳地使用比色设备作为皮肤研究工具。
更新日期:2019-12-19
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