PROBLEM TO BE SOLVED: To provide a creation method of pore evaluation index for evaluating the three-dimensional conformation of the pores correctly and making an index for analyzing the relation with pore conspicuousness, a creation system of pore evaluation index and a performance evaluation method.SOLUTION: A light interference tomographic image 1 of pores of the skin is obtained, an outline 2 of the pores in the light interference tomographic image 1 is extracted, a distance C of the most constricted part in a depth direction of the pore is measured, and the distance of the most constricted part is made an evaluation index of pore conspicuousness.SELECTED DRAWING: Figure 1【課題】毛穴の立体構造を正しく評価し、毛穴目立ちとの関係を解析するための指標を作成する毛穴評価指標の作成方法、毛穴評価指標作成システムおよび性能評価方法を提供する。【解決手段】肌の毛穴の光干渉断層画像１を取得し、光干渉断層画像１中の毛穴の輪郭２を抽出し、毛穴の深さ方向において、最もくびれた部分の距離Ｃを求め、くびれた部分の距離を毛穴目立ちの評価指標とする。【選択図】図１
