COLOR CONVERSION PARAMETER GENERATION METHOD AND COLOR CONVERSION APPARATUS

• Main Author: TAKENAKA HIROICHI
• Format: Patent
• Language: English
• Published: 17.02.2005
• Edition: 7
• Subjects: ADVERTISING; ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION; CALCULATING; COMPUTING; CORRECTION OF TYPOGRAPHICAL ERRORS; COUNTING; CRYPTOGRAPHY; DISPLAY; EDUCATION; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; LINING MACHINES; PERFORMING OPERATIONS; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION; PRINTING; SEALS; SELECTIVE PRINTING MECHANISMS; STAMPS; TRANSPORTING; TYPEWRITERS

PROBLEM TO BE SOLVED: To provide a method by which an optimum quantity of ink can be set for the whole color space while picture quality is taken into consideration. SOLUTION: An ink generation part 2 generates K from L*a*b* by using an ink generation parameter and a color conversion part 4 converts the L*a*b*K into CMY. Calculation parts 5 and 6 calculate evaluated values of granularity and a color area and a calculation part 7 totally evaluate the evaluated values to determine the ink generation parameter so that the total evaluated value becomes maximum. COPYRIGHT: (C)2005,JPO&NCIPI