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Consider the following statements about CIELAB uniformity.
1. It is far more uniform than the xy chromaticity diagram.
2. It remains non-uniform enough to require weighted difference formulae.
3. It is perfectly uniform throughout the colour space.

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

Answer: D

The first two are correct and describe the position honestly. The third overstates it, and the existence of CIEDE2000 is itself the evidence. Perfect uniformity would need no correction. The weighting formulae are themselves the evidence.

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