1. A method for determining specularity, the method comprising: selecting, by one or more computing devices, an area of geometry; identifying, by the one or more computing devices, a set of images that include the area of geometry; determining, by the one or more computing devices, a set of intensity values for the area for each image of the set of images; determining, by the one or more computing devices, a set of angle values for each image of the set of images based on at least a direction of a camera that captured the particular image when the particular image was captured; fitting, by the one or more computing devices, the set of intensity values and the set of angle values to a curve; and classifying, by the one or more computing devices, specularity of the area based on at least the fit.