PROBLEM TO BE SOLVED: To provide a method for evaluating conspicuousness of aging pores in which an opening part on a skin surface is spread out due to aging.SOLUTION: A differentiation method of aging pores includes: (1) a first step of assuming a visual evaluation value of the conspicuousness of aging pores obtained from a subject or a skin image of the subject as an objective variable, and preparing for a regression equation where a numerical value containing a coefficient of variation, a geometric average or harmonic mean of an illuminance group, brightness group or lightness group of color obtained from the skin image of the subject is obtained as an explanatory variable (2) a second step of obtaining a numerical value containing the coefficient of variation, geometric average or harmonic mean of the illuminance group, brightness group or lightness group of the color from the skin image of the differentiation subject and (3) a third step of substituting the numeric value obtained in the second step in the regression equation prepared in the first step, and determining the calculated numerical value as the evaluation value of the conspicuousness of the aging pores of the differentiation subject. By using the method, the conspicuousness of the aging pores and a camouflage effect of the aging pores by cosmetics can be evaluated.COPYRIGHT: (C)2016,JPO&INPIT【課題】加齢によって皮膚表面の開口部が広がった加齢毛穴の目立ちを評価する方法を提供することを目的とする。【解決手段】(1)被験者又は前記被験者の肌画像から得た加齢毛穴の目立ちの目視評価値を目的変数とし、前記被験者の肌画像から得た色の照度群、輝度群、若しくは明度群の変動係数、幾何平均、又は調和平均を含む数値を説明変数として得られる回帰式を準備する第1工程、(2)鑑別対象者の肌画像から色の照度群、輝度群、若しくは明度群の変動係数、幾何平均、又は調和平均を含む数値を得る第2工程、及び(3)前記第2工程で得た前記数値を、前記第1工程で準備した前記回帰式に代入し、算出された数値を前記鑑別対象者の加齢毛穴の目立ちの評価値として決定する第3工程を含む加齢毛穴の鑑別方法を利用することによって、加齢毛穴の目立ち及び化粧料の加齢毛穴の隠し効果を評価することができる。【選択図】図5
