IMAGE PROCESSOR AND IMAGE PROCESSING METHOD

PROBLEM TO BE SOLVED: To adequately use a light and shade black color material according to a reproduced color when a color image is outputted by using color materials of a plurality of colors including the light and shade black color material. SOLUTION: In interpolating operation 21 using a 3D-LUT,...

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Bibliographic Details
Main Author TAKENAKA HIROICHI
Format Patent
LanguageEnglish
Published 31.08.2006
Subjects
CALCULATING
COMPUTING
CORRECTION OF TYPOGRAPHICAL ERRORS
COUNTING
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
SELECTIVE PRINTING MECHANISMS
STAMPS
TRANSPORTING
TYPEWRITERS
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Summary:PROBLEM TO BE SOLVED: To adequately use a light and shade black color material according to a reproduced color when a color image is outputted by using color materials of a plurality of colors including the light and shade black color material. SOLUTION: In interpolating operation 21 using a 3D-LUT, conversion to outputs K, Lk, C_UCR, M_UCR, and Y_UCR corresponding to eight grating points (points W, Y, M, R, C, G, B, and K) of C0M0Y0, is performed. The output values after the interpolating operation are processed through clipping processing 22 into values within a range of 0 to 255, and K and Lk signals are outputted. An output signal CMY is calculated by subtracting 23 the C_UCR, M_UCR, and Y_UCR from the C0M0Y0. For a W-K line, the Lk is generated first and then the K is generated. COPYRIGHT: (C)2006,JPO&NCIPI
Bibliography:Application Number: JP20050039996