1. A method comprising: a computing device determining a common point of an object present in the plurality of images, which has a color value that differs among a plurality of images showing the object; the computing device mathematically expressing color value of the common point as a set of equations, one of the equations for each of the plurality of images; the computing device making an ambient contribution and a diffuse contribution for color as defined within the set of equations approximate equal across the set of equations; the computing device quantifying a specular contribution at the common point for at least a subset of the plurality of images; the computing device substituting the quantified specular contribution value into a corresponding variable and solving the simulations equations for a value of the ambient and diffuse contribution at the point; and the computing device establishing a color of the point as the ambient and diffuse contribution, wherein the established color is a value different from any value recorded for the point within any of the images.