Back to articles
Articles
Volume: 1 | Article ID: art00004
Image
Assessing skin tone heterogeneity under various light sources
Ruili He
Kaida Xiao
Michael Pointer
Stephen Westland
  DOI :  10.2352/issn.2694-118X.2020.LIM-15  Published Online :  September 2020
Abstract

In this paper, skin tone heterogeneity in five facial areas (forehead, right cheekbone, left cheekbone, nose tip and chin) was investigated under six light sources with correlated color temperature (CCT) of 2850 K, 3500 K, 5000 K, 5500 K, 6500 K and 9000 K. Firstly, a facial image capturing protocol was developed and applied to five female participants, and their facial skin tone was analyzed based on the captured images. Through color characterization of the camera, XYZ values in each facial area were converted by a matrix from the extracted RGB data and then transformed to CAM02-UCS color space. MCDM with CAM02-UCS color difference was used to quantify skin tone heterogeneity in each facial area. The results under different light sources indicated that larger heterogeneity exists under the light source with lower CCT, and when the CCT of the light source ranges from 5000 K to 9000 K, there was smaller skin tone heterogeneity in each facial area.

Journal Title : London Imaging Meeting
Publisher Name : Society for Imaging Science and Technology
Subject Areas :
Views 40
Downloads 6
 DOI 10.2352/issn.2694-118X.2020.LIM-15
 articleview.views 40
 articleview.downloads 6
  Cite this article 

Ruili He, Kaida Xiao, Michael Pointer, Stephen Westland, "Assessing skin tone heterogeneity under various light sources"  in Proc. IS&T London Imaging Meeting 2020: Future Colour Imaging,  2020,  pp 5 - 9,  https://doi.org/10.2352/issn.2694-118X.2020.LIM-15

 Copy citation
  Copyright statement 
Copyright © Society for Imaging Science and Technology 2020
75011771
London Imaging Meeting
2694-118X
2694-118x
Society for Imaging Science and Technology
10.2352/issn.2694-118X.2020.LIM-15
2694-118X(20200929)2020:1L.5;1-
s4.phd
/ist/lim/2020/00002020/00000001/art00004
Articles
Assessing skin tone heterogeneity under various light sources
HeRuili
XiaoKaida
PointerMichael
WestlandStephen
29092020
2020
1
5
9
2020
In this paper, skin tone heterogeneity in five facial areas (forehead, right cheekbone, left cheekbone, nose tip and chin) was investigated under six light sources with correlated color temperature (CCT) of 2850 K, 3500 K, 5000 K, 5500 K, 6500 K and 9000 K. Firstly, a facial image capturing protocol was developed and applied to five female participants, and their facial skin tone was analyzed based on the captured images. Through color characterization of the camera, XYZ values in each facial area were converted by a matrix from the extracted RGB data and then transformed to CAM02-UCS color space. MCDM with CAM02-UCS color difference was used to quantify skin tone heterogeneity in each facial area. The results under different light sources indicated that larger heterogeneity exists under the light source with lower CCT, and when the CCT of the light source ranges from 5000 K to 9000 K, there was smaller skin tone heterogeneity in each facial area.