1. An apparatus comprising: a receiver to receive a value for an pixel and a plurality of values for a plurality of second pixels, said plurality of second pixels being adjacent to said pixel, wherein said value represents a characteristic of said pixel and said plurality of values represent a characteristic of each of said plurality of second pixels; a calculator to calculate a plurality of deltas between said value and said plurality of values; and a determiner to determine whether said interpolate pixel exhibits pixel sparkling based on said plurality of deltas.