FIG. 22 is a diagram for explaining the technique of Deshpande et al., relating to the conventional example.
FIG. 23 is a diagram for explaining that a color based on an actual measurement value and a color based on a prediction value mismatch with each other in terms of a relationship relating to the conventional example.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
<0. Introduction>
Prior to describing embodiments, terms for use in the present specification and basic matters related to the present invention will be described with reference to FIG. 1. Regarding a C×F chart illustrated in FIG. 1, patches on an upper stage (patches on a stage denoted by reference numeral 71) are patches obtained by printing target ink on a base material, and patches on a lower stage (patches on a stage denoted by reference numeral 72) are patches obtained by printing the target ink on black. A patch that represents a color of the base material itself (a patch denoted by reference symbol PA1 in FIG. 1) will be referred to as a “paper white patch,” and a patch in a state of being solidly applied with the target ink (a patch denoted by reference symbol PA2 in FIG. 1) will be referred to as a “solid patch.” However, in each of the following embodiments, processes are not performed while focusing on the patches, but the processes are performed while focusing on gradation values. Further, in each of the following embodiments, spectral reflectances obtained by printing the target ink on the base material are predicted.
