Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/50015

TitleThe number of discernible colors for color deficient observers estimated from the MacAdam limits
Author(s)Perales, Esther
Martínez-Verdú, Francisco Miguel
Linhares, João M. M.
Nascimento, Sérgio M. C.
Issue date1-Sep-2010
PublisherThe Optical Society
JournalJournal of the Optical Society of America A: Optics and Image Science, and Vision
CitationPerales, E., Martínez-Verdú, F. M., Linhares, J. M. M., & Nascimento, S. M. C. (2010). Number of discernible colors for color-deficient observers estimated from the MacAdam limits. JOSA A, 27(10), 2106-2114
Abstract(s)We estimated the number of colors perceived by color normal and color-deficient observers when looking at the theoretic limits of object-color stimuli. These limits, the optimal color stimuli, were computed for a color normal observer and CIE standard illuminant D65, and the resultant colors were expressed in the CIELAB and DIN99d color spaces. The corresponding color volumes for abnormal color vision were computed using models simulating for normal trichromatic observers the appearance for dichromats and anomalous trichomats. The number of colors perceived in each case was then computed from the color volumes enclosed by the optimal colors also known as MacAdam limits. It was estimated that dichromats perceive less than 1% of the colors perceived by normal trichromats and that anomalous trichromats perceive 50%-60% for anomalies in the medium-wavelength-sensitive and 60%-70% for anomalies in the long-wavelength-sensitive cones. Complementary estimates obtained similarly for the spectral locus of monochromatic stimuli suggest less impairment for color-deficient observers, a fact that is explained by the two-dimensional nature of the locus. © 2010 Optical Society of America.
TypeArticle
DescriptionPreprint
URIhttp://hdl.handle.net/1822/50015
DOI10.1364/JOSAA.27.002106
ISSN1084-7529
e-ISSN2375-110X
Publisher versionhttps://www.osapublishing.org/josaa/abstract.cfm?uri=josaa-27-10-2106
Peer-Reviewedyes
AccessRestricted access (UMinho)
Appears in Collections:CDF - OCV - Artigos/Papers (with refereeing)

Files in This Item:
File Description SizeFormat 
perales_paper_may_2010_resubmition.pdf
  Restricted access
961,25 kBAdobe PDFView/Open

Partilhe no FacebookPartilhe no TwitterPartilhe no DeliciousPartilhe no LinkedInPartilhe no DiggAdicionar ao Google BookmarksPartilhe no MySpacePartilhe no Orkut
Exporte no formato BibTex mendeley Exporte no formato Endnote Adicione ao seu ORCID