Discussion
Colour matching software can estimate the metamerism of a candidate recipe because
Answer: C
Correct answer: it predicts the whole reflectance curve rather than three values
Because the calculation runs wavelength by wavelength, each candidate recipe comes with a complete predicted reflectance curve. That curve can then be integrated under any illuminant, and comparing the results under two illuminants gives the metamerism index - something impossible if only tristimulus values had been predicted.
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