Patent ID: 7027068
Filing Date: 2006-04-11
Classification: H04N

Abstract:
1. A method for defining one or more entries in a color cube comprising: obtaining a first color cube having a first color cube entry that defines a color region; obtaining a second color cube having a second color cube entry that defines a color region, wherein the second color cube is smaller in size than the first color cube; mapping a list of two or more color indices to the second color cube entry, wherein each color index represents a color that falls within the color region defined by the second color cube entry that the color index is mapped to; and determining one or more corresponding second color cube entries for the first color cube entry; and determining a color index to be placed in the first color cube entry based on similarity by comparing the color region defined by the first color cube entry to each of the colors represented by the color indices in the one or more corresponding second color cube entries.