| Titre : |
Study for skin gloss perception using computer modulation and frequency separation on surface reflection |
| Type de document : |
texte imprimé |
| Année de publication : |
2023 |
| Article en page(s) : |
p. 500-511 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Analyse d'image L'analyse d'image est la reconnaissance des éléments contenus dans l'image. Il ne faut pas confondre analyse (décomposition en éléments) et traitement (action sur les composantes) de l'image.
Analyse des données
Brillance (optique)
Clarté de la peau
Evaluation visuelle
Modèles numériques
Peau -- analyse
Peau -- Perception visuelle
Réflectance
Statistiques
|
| Index. décimale : |
668.5 Parfums et cosmétiques |
| Résumé : |
- Objective : Skin gloss is a parameter of beauty and health and is used to evaluate the efficacy of makeup or skin care products. Skin gloss is a perception-based characteristic, which yet needs to be evaluated quantitatively and objectively. This study aimed to investigate the factors affecting the perception of matte, glossiness and greasiness on Korean women's skin, focusing on the effect of surface reflection.
- Methods : In this study, a visual evaluation of skin gloss was performed using modulated images that combined facial reference (normal) images with images characterized by 64 different levels of surface reflection to investigate factors that might affect the perception of matte, glossy and greasy skin. Fifteen participants classified the respective images into three categories (matte, glossy and greasy), and the intensity of each image was rated using a three-point scale (weak, moderate or strong). A multinomial logistic regression analysis was performed using 960 data points (n = 64 × 15). A high-frequency average + 1 standard deviation (SD = 4) was set as the criterion for a highly glossy object.
- Results : A significant difference was found between the three categories considering four parameters: low-frequency mean (LFM) and SD (LFSD) and high-frequency mean (HFM) and SD (HFSD). The results of the multinomial logistic regression analysis showed that LFM and HFSD were significant influencing factors for perceiving matte, glossiness and greasiness. As the LFM and HFSD of the images increased, perception changed from matte, to glossy and greasy. Further, the total number and total area of highly glossy objects were significantly different among the three categories.
- Conclusion : We identified four different factors related to perceiving matte, glossiness and greasiness on the faces of Korean women, including the LFM and HFSD of surface reflection, as well as the number of highly glossy objects and the area of surface reflection. Furthermore, we identified evenness of shine as a key factor for the perception of greasiness. These parameters could be useful for distinguishing skin gloss and for a quantitative evaluation of greasiness. |
| Note de contenu : |
- MATERIALS AND METHODS : Ethical considerations - Stimuli image preparation - Image analysis - Questionnaire assessment - Data analysis
- RESULTS : Raw low or high spatial frequency mean and SD of surface reflection - Comparison of LFM, LFSD, HFM and HFSD by categories - Prediction of skin gloss categories - Number and total area of highly glossy objects
- Table 1 : The characteristic description of applied products
- Table 2 : Mean and standard deviation of low- and high-frequency images
- Table 3 : Comparison of results among intensities of the categories
- Table 4 : Goodness-of-fit (Pearson chi-square p-value) and Nagelkerke's pseudo R2
- Table 5 : Results of the multinomial logistic regression analysis
- Table 6 : Results of the prediction of categories using the multinomial logistic regression
- Table 7 : Results of the multinomial logistic regression analysis of high-glossy objects (HG) |
| DOI : |
https://doi.org/10.1111/ics.12859 |
| En ligne : |
https://drive.google.com/file/d/1pSqV2VLvO8JldV45hw1dXEwrDk8up4at/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39880 |
in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE > Vol. 45, N° 4 (08/2023) . - p. 500-511
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Study for skin gloss perception using computer modulation and frequency separation on surface reflection in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 45, N° 4 (08/2023)
