Machine-translated by Google. Questions are authored in English.
Top

Discussion

Instrumental colour measurement removes observer variability but

  • A.still relies on an assumed standard observer throughout
  • B.requires no assumption about any observer whatever
  • C.measures the perception directly rather than the stimulus
  • D.eliminates metamerism from the measurement entirely

Answer: A

Correct answer: still relies on an assumed standard observer throughout

A spectrophotometer measures reflectance, which is physics; converting that to tristimulus values requires weighting by an illuminant and a set of observer functions, which is a choice. The instrument removes the variability between individual people but replaces them with a single assumed average that no real observer exactly matches.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.