dc.contributor.author | Fairchild, Mark | en_US |
dc.contributor.author | Reniff, Lisa | en_US |
dc.date.accessioned | 2006-12-18T17:39:20Z | en_US |
dc.date.available | 2006-12-18T17:39:20Z | en_US |
dc.date.issued | 1995-05 | en_US |
dc.identifier.citation | Journal of the Optical Society of America A - Optics Image Science and Vision 12N5 (1995) 824-833 | en_US |
dc.identifier.issn | 1084-7529 | en_US |
dc.identifier.uri | http://hdl.handle.net/1850/3112 | en_US |
dc.description | RIT community members may access full-text via RIT Libraries licensed databases: http://library.rit.edu/databases/ | |
dc.description.abstract | Observer production of achromatic appearance has previously been used to measure the time course of chromatic adaptation for changes from daylight to incandescent illuminants at constant luminance, indicating an exponential decay of chromatic adaptation with a time constant of the order of 10 s. The work extends previous results in several ways. The psychophysical technique was significantly improved to provide more
reliable estimates of color appearance as a function of adaptation duration, and the time course of chromatic adaptation was measured for six chromaticity changes. Three observers tracked achromatic appearance on a computer-controlled CRT display during transitions of 2-min duration between the various chromaticities. The results indicate that observer differences are statistically significant. However, differences in time course for different chromaticity changes are not statistically significant (within observer). Single or piecewise exponential decay functions cannot be fitted to the data. However, sum-of-two-exponentials functions provided accurate descriptions of the data. The results suggest two stages of adaptation: one extremely rapid (a few seconds) and the other somewhat slower (approximately 1 min). Chromatic adaptation at constant luminance was 90% complete after approximately 60 s. | en_US |
dc.description.sponsorship | The authors thank Karen Braun (KMR) for patient assistance as an observer in these experiments. This research was presented at the 1993 Annual Meeting of the Optical Society of America in Toronto and was supported in part by the Munsell Color Science Laboratory and the National Science Foundation–New York State/Industry-University Cooperative Research Consortium and the New York State Science and Technology Foundation–Centers for Advanced Technology Center for Electronic Imaging Systems. | en_US |
dc.format.extent | 394566 bytes | en_US |
dc.format.mimetype | application/pdf | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | Optical Society of America | en_US |
dc.relation.ispartofseries | vol. 12 | en_US |
dc.relation.ispartofseries | no. 5 | en_US |
dc.subject | Color vision | en_US |
dc.subject | Color vision - adaptation | en_US |
dc.subject | Color vision - psychophysics | en_US |
dc.title | Time-course of chromatic adaptation for color-appearance judgments | en_US |
dc.type | Article | en_US |
dc.identifier.url | http://dx.doi.org/10.1364/JOSAA.12.000824 | |