| 摘要 |
PROBLEM TO BE SOLVED: To provide a technology for accelerating color conversion processing while maintaining color conversion accuracy. ! SOLUTION: A color conversion device U0 includes: a second memory M2 which can be accessed faster than a first memory M1 storing images 310 and 320 therein, and stores at least a part of a color conversion table (220) in which coordinate values (Cg, Mg, Yg and Kg) of an output color space are made correspondent to a number N2 of second grid points G2 less than a number N1 of first grid points G1; a use grid point determination part U1 for determining a use grid point G1j to be used for converting input coordinate values (Ri, Gi and Bi) out of the N1 pieces of first grid points G1; an interpolation grid point selection part U2 for selecting an interpolation grid point G2j to be used for interpolating the coordinate values corresponding to the use grid point G1j from among the N2 pieces of second grid points G2; and an output coordinate value calculation part U3 for calcul |
