1. A method of quantifying properties of skin, the method comprising: receiving data that describes a set of images of skin, wherein a plurality of the images comprising the set of images were taken under a different lighting condition, the different lighting condition comprising a variance in a direction from which the plurality of the images is lit by one or more light sources; and computing surface normals based on the data, wherein said computer surface normals are utilized to enable quantifying a property of the skin for the purpose of evaluating the skin; displaying an image of the skin based on quantified properties of the skin, wherein a property with which the image of the skin is displayed is varied and selected from a group of properties consisting of specular reflectance and color.