×

Image processing apparatus, and color correction method and lookup table

  • US 20040126010A1
  • Filed: 12/17/2003
  • Published: 07/01/2004
  • Est. Priority Date: 12/18/2002
  • Status: Active Grant
First Claim
Patent Images

1. A color conversion method of inputting at least two color difference values and obtaining a corresponding saturation value, comprising steps of:

  • creating a main lookup table which stores saturation value for the color difference values, and a sub-lookup table for obtaining an address for accessing the main lookup table;

    determining the address of the main lookup table in correspondence with two color difference values on the basis of the sub-lookup table and a difference between the two color difference values; and

    obtaining a saturation value corresponding to the two color difference values from the address determined in said determining step.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×