Colour and brightness shifts for isoluminant samples and backgrounds

J. J. Kulikowski; R. Stanikunas; M. Jurkutaitis; H. Vaitkevicius; I. J. Murray

doi:10.1002/1520-6378(2001)26:1+<::AID-COL43>3.0.CO;2-G

Colour and brightness shifts for isoluminant samples and backgrounds

J. J. Kulikowski, R. Stanikunas, M. Jurkutaitis, H. Vaitkevicius, I. J. Murray

Research output: Contribution to journal › Article › peer-review

Abstract

Changes in colour appearance were studied under eight different illuminants. The most informative conditions were when sample and background were both contourless and isoluminant. Matching contourless, isoluminant colour samples under a variable illuminant against the standard (C) revealed variations of colour constancy and brightness independent of luminance. Constancy was found worse for illuminants below the Planckian curve (red, purple, violet), but rather similar under other illuminants. Brightness induction effects occurred over similar test hue ranges: 5PB-5GY for A, red, purple illuminants, and over 5GY-5RP hues for S and green illuminants, suggesting the operation of one dominant red-green opponent mechanism. Thus, the cardinal tritanopic axis bisects the Uniform Chromaticity plane at about 5GY outlining the border between these induction effects. Similar effects were evident for tritanopic violet, but not for yellow. © 2000 John Wiley & Sons, Inc.

Original language	English
Pages (from-to)	S205-S208
Journal	Color Research and Application
Volume	26
DOIs	https://doi.org/10.1002/1520-6378(2001)26:1+<::AID-COL43>3.0.CO;2-G
Publication status	Published - 2001

Keywords

Brightness
Colour
Colour constancy
Related colours

Access to Document

10.1002/1520-6378(2001)26:1+<::AID-COL43>3.0.CO;2-G

Cite this

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title = "Colour and brightness shifts for isoluminant samples and backgrounds",

abstract = "Changes in colour appearance were studied under eight different illuminants. The most informative conditions were when sample and background were both contourless and isoluminant. Matching contourless, isoluminant colour samples under a variable illuminant against the standard (C) revealed variations of colour constancy and brightness independent of luminance. Constancy was found worse for illuminants below the Planckian curve (red, purple, violet), but rather similar under other illuminants. Brightness induction effects occurred over similar test hue ranges: 5PB-5GY for A, red, purple illuminants, and over 5GY-5RP hues for S and green illuminants, suggesting the operation of one dominant red-green opponent mechanism. Thus, the cardinal tritanopic axis bisects the Uniform Chromaticity plane at about 5GY outlining the border between these induction effects. Similar effects were evident for tritanopic violet, but not for yellow. {\textcopyright} 2000 John Wiley & Sons, Inc.",

keywords = "Brightness, Colour, Colour constancy, Related colours",

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language = "English",

volume = "26",

pages = "S205--S208",

journal = "Color Research and Application",

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TY - JOUR

T1 - Colour and brightness shifts for isoluminant samples and backgrounds

AU - Kulikowski, J. J.

AU - Stanikunas, R.

AU - Jurkutaitis, M.

AU - Vaitkevicius, H.

AU - Murray, I. J.

PY - 2001

Y1 - 2001

N2 - Changes in colour appearance were studied under eight different illuminants. The most informative conditions were when sample and background were both contourless and isoluminant. Matching contourless, isoluminant colour samples under a variable illuminant against the standard (C) revealed variations of colour constancy and brightness independent of luminance. Constancy was found worse for illuminants below the Planckian curve (red, purple, violet), but rather similar under other illuminants. Brightness induction effects occurred over similar test hue ranges: 5PB-5GY for A, red, purple illuminants, and over 5GY-5RP hues for S and green illuminants, suggesting the operation of one dominant red-green opponent mechanism. Thus, the cardinal tritanopic axis bisects the Uniform Chromaticity plane at about 5GY outlining the border between these induction effects. Similar effects were evident for tritanopic violet, but not for yellow. © 2000 John Wiley & Sons, Inc.

AB - Changes in colour appearance were studied under eight different illuminants. The most informative conditions were when sample and background were both contourless and isoluminant. Matching contourless, isoluminant colour samples under a variable illuminant against the standard (C) revealed variations of colour constancy and brightness independent of luminance. Constancy was found worse for illuminants below the Planckian curve (red, purple, violet), but rather similar under other illuminants. Brightness induction effects occurred over similar test hue ranges: 5PB-5GY for A, red, purple illuminants, and over 5GY-5RP hues for S and green illuminants, suggesting the operation of one dominant red-green opponent mechanism. Thus, the cardinal tritanopic axis bisects the Uniform Chromaticity plane at about 5GY outlining the border between these induction effects. Similar effects were evident for tritanopic violet, but not for yellow. © 2000 John Wiley & Sons, Inc.

KW - Brightness

KW - Colour

KW - Colour constancy

KW - Related colours

U2 - 10.1002/1520-6378(2001)26:1+<::AID-COL43>3.0.CO;2-G

DO - 10.1002/1520-6378(2001)26:1+<::AID-COL43>3.0.CO;2-G

M3 - Article

SN - 0361-2317

VL - 26

SP - S205-S208

JO - Color Research and Application

JF - Color Research and Application

ER -

Colour and brightness shifts for isoluminant samples and backgrounds

Abstract

Keywords

Access to Document

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