Wang, Mengmeng
Cao, Jing
Chapter History
First Online: 10 April 2020
Compliance with Ethical Standards
: <b>Funding</b>: This study is partly funded by Jiangnan university fundamental research funding (JUSRP119100)
: <b>Conflict of Interest</b>: The authors declare that they have no conflict of interest.
: <b>Ethical approval</b>: All procedures performed in studies involving human participants were in accordance with the ethical standards of the school of digital media, Jiangnan University and approved by the university research ethical committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. The images and skin colour information are from Leeds Liverpool Skin Colour Database.
: <b>Informed consent</b>: Informed consent was obtained from all individual participants included in the study.