Patent ID: 8456709

Claim:
A lookup table generation method for generating a third lookup table by using a first lookup table and a second lookup table, comprising: a first acquisition step of acquiring output values, using the first lookup table for converting color data on a device-independent color space into color data on a device-dependent color space, in accordance with input values the number of which is larger than the number of grid points of the first lookup table; a second acquisition step of acquiring output values, using the second lookup table for converting the color data on the device-dependent color space into color material data corresponding to a plurality of color print materials, upon setting, as input values, the output values acquired in the first acquisition step; and a generation step of generating the third lookup table, having grid points a predetermined number of which is larger than the number of grid points of the first lookup table, corresponding to the predetermined number of input values in accordance with the output values acquired in the second acquisition step.