Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.14/100968
30 Visitors
32 Hits
0 Downloads
- Title
- Unique and binary hues as functions of luminance and illuminant color temperature, and relations with invariant hues
- Related
- Vision research, Vol. 39, Issue 23 (1999), p.3892-3908
- DOI
- 10.1016/S0042-6989(99)00086-3
- Publisher
- Elsevier
- Date
- 1999
- Author/Creator
- Pridmore, Ralph W
- Description
- For aperture color 3 s stimuli, the four unique hues, and at times the four (equally-balanced) binary hues, were measured for: (1) adapting white color temperatures 2850, 3400, 5500, 6500 K; and (2) luminance (L) for 5 and 6 log L ranges (about 0.01–3200 cd:m²) in 3.2:1 L steps (viewed singly) for 1 subject per white, 3 log L in 10:1 steps for 6 subjects for white 6500 K, and 1 log L for 2–11 subjects per white. The full hue cycle is graphed to the extended wavelength scale. With higher L, unique hues *b and *y shift longer, *g and *r shorter, and spectral binaries and 460 nm are invariant wavelengths, for Ls viewed singly. But for Ls viewed in successive contrast (Bezold–Brucke effect), unique hues are practically invariants. As interstimuli interval increases from 0–40 s (from successive L contrast to no-contrast), invariants shift away from uniques (which become hue-shift maxima) and coincide with spectral binaries (but not r/b, 565 c) at 495, 546, 600 nm. Successive L contrast switches spectral uniques’ hue-shift off (as invariants), and spectral binaries on (as hue-shift maxima); and no-contrast switches the reverse. With higher illuminant color temperature 2850–6500 K, wavelength of 10 constant hues shortens 5–10 nm for *b, *y, g:y, y:r, but others are constant ±2 nm.
- Description
- 17 page(s)
- Subject Keyword
- unique hues
- Subject Keyword
- binary hues
- Subject Keyword
- hue-shift
- Subject Keyword
- invariant hues
- Subject Keyword
- successive contrast
- Subject Keyword
- chromatic adaptation
- Subject Keyword
- opponent-colors
- Resource Type
- journal article
- Organisation
- Macquarie University. Macquarie Centre for Cognitive Science
- Identifier
- http://hdl.handle.net/1959.14/100968
- Identifier
- ISSN:0042-6989
- Identifier
- mq-nonrm-170
- Language
- eng
- Reviewed
List Of Titles
