Discussion
Match each gamut mapping strategy with what it does.
List I
A. Clipping
B. Compression
C. Perceptual intent
D. Colorimetric intent
List II
1. preserves relationships at the cost of accuracy
2. moves out of gamut colours to the boundary
3. preserves in gamut colours exactly
4. scales the whole range to fit inside
Answer: C
Correct answer: A-2, B-4, C-1, D-3
Two mechanisms and two intents. Clipping moves out-of-gamut colours to the nearest point on the boundary, which preserves everything inside but flattens detail outside. Compression scales the whole range inward so that nothing is lost, at the cost of shifting colours that were reproducible. Perceptual intent takes the second approach and colorimetric the first.
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