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http://dx.doi.org/10.15230/SCSK.2017.43.4.349

Digitization of Adjectives that Describe Facial Complexion to Evaluate Various Expressions of Skin Tone in Korean  

Lee, Sun Hwa (Ellead Co., Ltd.)
Lee, Jung Ah (Ellead Co., Ltd.)
Park, Sun Mi (Ellead Co., Ltd.)
Kim, Younghee (Ellead Co., Ltd.)
Jang, Yoon Jung (Ellead Co., Ltd.)
Kim, Bora (Division of Biomedicinal Chemistry & Cosmetics, College of Techno-sciences, Mokwon University)
Kim, Nam Soo (Ellead Co., Ltd.)
Moon, Tae Kee (Ellead Co., Ltd.)
Publication Information
Journal of the Society of Cosmetic Scientists of Korea / v.43, no.4, 2017 , pp. 349-355 More about this Journal
Abstract
Skin tone plays a key role in one of the determinant for facial attractiveness. Most female customers have an interest in choosing skin color and improving their skin tone and their needs have been contributed the expansion of cosmetic products in the market. Recently, cosmetic customers, who want bright skin, are also interested in healthy and lively-looking skin. However, there is no method to evaluate the skin tone with the complexion-describing adjectives (CDAs). Therefore, this study was conducted to find the ways to objectify and digitize the CDA. We obtained that quasi $L^*$ at dark skin is 65 and quasi $L^*$ at bright skin is 74 for standard images, which are selected from our data base. To match the following seven CDAs: pale, clear, radiant, lively, healthy, rosy and dull, the colors of both images were adjusted by 30 panels. The quasi $L^*$, $a^*$ and $b^*$ were converted from the RGB values of the manipulated images. The differences between the quasi $L^*$, $a^*$ and $b^*$ values of standard images and manipulated images reflecting each CDA were statistically significant (p < 0.05). However, there were no statistical significances between the $L^*$ values of dark and bright skin images that were modified in accordance with each CDA and there also were no statistical significances between the quasi $a^*$ values of dark and bright skin for pale and clear CDAs. From the statistical analysis, the CDAs were observed to form three groups: (i) pale-clear-radiant, (ii) lively-healthy-rosy and (iii) dull. We recognized that people have a similar opinion about perception of CDAs. Following our results of this study, we establish new standard method for sensibility evaluation which is difficult to carry out scientifically or objectively.
Keywords
facial complexion; image analysis; quasi $L^*a^*b^*$; RGB; adjectives;
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