Patent ID: 8493403

Claim:
A method for identifying a set of measured sample points specifying a color transformation, comprising: identifying a subset of measured points from a superset of measured points representing a colorimetric relationship using a processor, wherein the subset of measured points define an n-simplex with (n+1) measured points representing an approximation of the colorimetric relationship, n representing a number of dimensions; selecting an additional measured point from the superset of measured points using the processor and adding the additional measured point to the subset of measured points to replace the n-simplex with a set of at least two n-simplices, wherein the additional measured point is selected to increase an (n+1) volume of an (n+1)-simplex formed by the (n+1) measured points of the initial n-simplex and a functional value of the additional measured point; and determining an error value for the approximation by calculating an error volume between the (n+1) simplex and the superset of measured points wherein each of the (n+1) volume and the error volume refers to an amount of space occupied by a geometrical object in a simplicial complex.