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Consider the following statements about CIEDE2000.
1. It includes a rotation term acting mainly in the blues.
2. It rescales chroma differences for near neutral colours.
3. It is a simple Euclidean distance like Delta E ab.

  • A.1 only
  • B.All of them
  • C.1 and 2 only
  • D.3 only

Answer: C

The first two are correct and describe its features. The third is quite wrong, since the formula is considerably more elaborate than a Euclidean distance. Several correction terms operate together. It is far from a simple distance calculation.

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