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- Title
OPTIMIZING FACE-UP APPEARANCE IN COLORED GEMSTONE FACETING.
- Authors
Gilbertson, Al
- Abstract
The human visual system interprets visual cues to perceive different intensities of brightness. Patterns of light and dark contrast create impressions of brightness in faceted gemstones. These patterns generally remain coherent in the viewer's eye when the gemstone is tilted or rotated. Using computer-generated color-coded contrast maps in facet planning can improve apparent brightness, optimizing a gemstone's appearance.
- Subjects
GEMS &; precious stones; RADIANCE; VISUAL pathways; COMPUTER-generated imagery; CONTRAST effect; OPTICAL illusions
- Publication
Gems & Gemology, 2013, Vol 49, Issue 2, p64
- ISSN
0016-626X
- Publication type
Article
- DOI
10.5741/GEMS.49.2.64