PROBLEM TO BE SOLVED: To capture and evaluate change of each color unevenness portion included in a skin image.SOLUTION: An evaluation method of a color unevenness portion (freckle on one's face) comprises: a color unevenness portion detection step (step S102) for detecting plural color unevenness portions from a first skin image and a second skin image different from the first skin image； a gravity center position calculation step (step S108) for calculating a gravity center position coordinate of each of color unevenness portions included in the first skin image and second skin image； and a matching processing step (step S110) for associating plural color unevenness portions included in the first skin image, with plural color unevenness portions included in the second skin image, based on the gravity center position coordinate of each of the plural color unevenness portions calculated in the gravity center position calculation step.SELECTED DRAWING: Figure 3【課題】肌画像に含まれる各色ムラ部位の変化を捕らえて評価する。【解決手段】色ムラ部位（シミ）の評価方法は、第１の肌画像及び当該第１の肌画像とは異なる第２の肌画像それぞれから、複数の色ムラ部位を検出する色ムラ部位検出ステップ（ステップＳ１０２）と、第１の肌画像及び第２の肌画像それぞれの各色ムラ部位の重心位置座標を算出する重心位置算出ステップ（ステップＳ１０８）と、重心位置算出ステップで算出された各色ムラ部位の重心位置座標に基づき、第１の肌画像に含まれる複数の色ムラ部位と第２の肌画像に含まれる複数の色ムラ部位とを対応付けるマッチング処理ステップ（ステップＳ１１０）と、を含む。【選択図】図３
