Premium
A Practical Approach to Physically‐Based Reproduction of Diffusive Cosmetics
Author(s) -
Kim Goanghun,
Ko HyeongSeok
Publication year - 2018
Publication title -
computer graphics forum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 120
eISSN - 1467-8659
pISSN - 0167-7055
DOI - 10.1111/cgf.13562
Subject(s) - transmittance , cosmetics , computer science , reflectivity , layer (electronics) , transfer (computing) , materials science , biological system , computer graphics (images) , optics , physics , composite material , optoelectronics , chemistry , organic chemistry , biology , parallel computing
In this paPer, we introduce so‐called the bSX method as a new way to utilize the Kubelka‐Munk (K‐M) model. Assuming the material is completely diffusive, the K‐M model gives the reflectance and transmittance of the material from the observation of the material applied on a backing, where the observation includes the thickness of the material application. By rearranging the original K‐M equation, we propose that the reflectance and transmittance can be calculated without knowing the thickness. This is a practically useful contribution. Based on the above finding, we develop the bSX method which can (1) capture the material specific parameters from the two photos – taken before and after the material application, and (2) reproduce its effect on a novel backing. We exPerimented the proposed method in various cases related to virtual cosmetic try‐on, which include (1) capture from a single color backing, (2) capture from human skin backing, (3) reproduction of varying thickness effect, (4) reproduction of multi‐layer cosmetic application effect, (5) applying the proposed method to makeup transfer. Compared to previous image‐based makeup transfer methods, the bSX method reproduces the feel of the cosmetics more accurately.