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USING COMPRESSION TO STORE COLOR CORRECTION TABLES

IP.com Disclosure Number: IPCOM000027838D
Original Publication Date: 2000-Feb-29
Included in the Prior Art Database: 2004-Apr-09

Publishing Venue

Xerox Disclosure Journal

Abstract

A method of storing data association with multidimensional correction tables used in electrophotographic printing machines is disclosed. These tables are often used to convert from one color space to another color space, and in the past have made use of one of several multidimensional interpolation techniques. Interpolation is needed because a 24- bit input (8-bits each for red, green, and blue for example) require (2**8)**3 entries. Current methods store on the order of (2**4)**3 or (2**5)**3 entries, and use interpolation to calculate intermediate values. It is proposed to store the information associated with all 2**24 colors by using a compression on the data.