Discussion
Consider the following statements about Delta H star.
1. It represents a distance rather than an angle.
2. It is derived from the other differences rather than measured.
3. It equals the hue angle difference in degrees.
Answer: B
Correct answer: 1 and 2 only
Statements 1 and 2 are correct: \( \Delta H^* \) has the units of a distance and is obtained from the total difference after the lightness and chroma components are removed. Statement 3 is precisely what it is not - equating it to the angle in degrees would ignore the chroma at which that angle is subtended.
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