Method of estimating a visual evaluation value of skin beauty

A method of estimating a visual evaluation value of skin beauty, comprising the steps of:

• obtaining a 3-dimensional skin surface relief value of the skin;
• calculating a fractal dimension of a distribution of the 3-dimensional skin surface relief value;
• and
• substituting the numerically calculated fractal dimension for a prepared regression equation indicating a relationship between a fractal dimension of a distribution of the 3-dimensional skin surface relief value and a visual evaluation value of skin beauty to obtain a visual evaluation value of skin beauty.

A device for estimating a visual evaluation value of skin beauty, comprising:

• means for obtaining an image signal of at least one color system of an image of a skin surface;
• means for calculating a fractal dimension of a distribution of at least one components of the image signal of the color system in the image;
• means for substituting the numerically calculated fractal dimension for a prepared regression equation indicating a relation between a fractal dimension of a distribution of the component and a visual evaluation value of skin beauty to calculate a visual evaluation value of beauty of the skin;
• and
• means for displaying the calculated visual evaluation value.

A device for estimating a visual evaluation value of skin beauty, comprising:

• means for obtaining a 3-dimensional skin surface relief value of the skin;
• means for calculating a fractal dimension of a distribution of the 3-dimensional skin surface relief value;
• means for substituting the numerically calculated fractal dimension for a prepared regression equation indicating a relation between a fractal dimension of a distribution of the 3-dimensional skin surface relief value and a visual evaluation value of skin beauty to calculate the visual evaluation value of skin beauty;
• and
• means for displaying the calculated visual evaluation value.