The color coordinate transformation table generation method and apparatus of
the invention enables substantial reduction in number of color samples required
for inferring spectral characteristics by selectively measuring only usable color
samples. In addition, applying a model analysis technique using spline functions
or a singular value analysis technique realizes accurate inference of spectral
characteristics. The color coordinate transformation table generation apparatus
of the invention can generate a large number of association tables needed for constituting
profiles according to a technique of generating virtual color samples or deriving
color signals from a numerous sets of spectral reflectance data by using inferred
spectral characteristics.