Determinants of Colour Constancy and the Blue Bias

We investigated several sensory and cognitive determinants of colour constancy across 40 illumination hues. In the first experiment, we measured colour naming for the illumination and for the colour induced by the illumination on the colorimetric grey. Results confirmed that the induced colours are approximately complementary to the colour of the illumination. In the second experiment, we measured colour constancy using achromatic adjustments. Average colour constancy was perfect under the blue daylight illumination and decreased in colour directions away from the blue daylight illumination due to undershooting and a strong blue bias. Apart from this blue bias, colour constancy was not related to illumination discrimination and to chromatic detection measured previously with the same setup and stimuli. We also observed a strong negative relationship between the degree of colour constancy and the consensus of naming the illumination colour. Constancy coincided with a low naming consensus, in particular because bluish illumination colours were sometimes seen as achromatic. Blue bias and category consensus alone explained >68%, and all determinants together explained >94% of the variance of achromatic adjustments. These findings suggest that colour constancy is optimised for blue daylight.

[1]  Roger N. Shepard,et al.  The perceptual organization of colors: An adaptation to regularities of the terrestrial world? , 1992 .

[2]  Christoph Witzel.  New Insights Into the Evolution of Color Terms or an Effect of Saturation? , 2016, i-Perception.

[3]  B. Anderson,et al.  The role of chromatic variance in modulating color appearance. , 2015, Journal of vision.

[4]  Karl R Gegenfurtner,et al.  Color appearance of familiar objects: effects of object shape, texture, and illumination changes. , 2008, Journal of vision.

[5]  D. Foster.  Color constancy , 2011, Vision Research.

[6]  Vasco M N de Almeida,et al.  Perception of Illuminant Colour Changes across Real Scenes , 2009, Perception.

[7]  C. Witzel,et al.  Uncertainty of sensory signal explains variation of color constancy. , 2016, Journal of vision.

[8]  D G Pelli,et al.  The VideoToolbox software for visual psychophysics: transforming numbers into movies. , 1997, Spatial vision.

[9]  Rumi Tokunaga,et al.  Colour constancy as measured by least dissimilar matching. , 2011, Seeing and perceiving.

[10]  K. Gegenfurtner,et al.  Effects of spatial and temporal context on color categories and color constancy. , 2007, Journal of vision.

[11]  Jeroen J. M. Granzier,et al.  Can illumination estimates provide the basis for color constancy? , 2009, Journal of vision.

[12]  A. Franklin,et al.  Focal colors as perceptual anchors of color categories , 2013 .

[13]  H E Smithson,et al.  Sensory, computational and cognitive components of human colour constancy , 2005, Philosophical Transactions of the Royal Society B: Biological Sciences.

[14]  Karl R Gegenfurtner,et al.  Categorical color constancy for simulated surfaces. , 2009, Journal of vision.

[15]  Peter B. Delahunt,et al.  Does human color constancy incorporate the statistical regularity of natural daylight? , 2004, Journal of vision.

[16]  Matteo Toscani,et al.  The many colours of ‘the dress’ , 2015, Current Biology.

[17]  I J Murray,et al.  Test illuminant location with respect to the Planckian locus affects chromaticity shifts of real Munsell chips. , 2016, Journal of the Optical Society of America. A, Optics, image science, and vision.

[18]  A. Hurlbert,et al.  Four issues concerning colour constancy and relational colour constancy , 1997, Vision Research.

[19]  Zygmunt Pizlo,et al.  Camouflage and visual perception , 2009, Philosophical Transactions of the Royal Society B: Biological Sciences.

[20]  Jürgen Golz,et al.  Colour Constancy: Influence of Viewing Behaviour on Grey Settings , 2010, Perception.

[21]  L. Arend,et al.  Simultaneous color constancy: paper with diverse Munsell values. , 1991, Journal of the Optical Society of America. A, Optics and image science.

[22]  Günter Wyszecki,et al.  Evaluation of Metameric Colors , 1958 .

[23]  C. D. Weert,et al.  Naming versus matching in color constancy , 1991, Perception & psychophysics.

[24]  D. Brainard,et al.  Color constancy in the nearly natural image. 2. Achromatic loci. , 1998, Journal of the Optical Society of America. A, Optics, image science, and vision.

[25]  D H Brainard,et al.  The Psychophysics Toolbox. , 1997, Spatial vision.

[26]  S. J.P..  Characteristic spectra of Munsell colors , 2002 .

[27]  Sophie M. Wuerger,et al.  Variation of subjective white-points along the daylight axis and the colour of the dress , 2016 .

[28]  Kinjiro Amano,et al.  Tritanopic colour constancy under daylight changes , 2003 .

[29]  Dale Purves,et al.  The empirical basis of color perception , 2002, Consciousness and Cognition.

[30]  M. Webster,et al.  Variations in normal color vision. II. Unique hues. , 2000, Journal of the Optical Society of America. A, Optics, image science, and vision.

[31]  Vasco M N de Almeida,et al.  Minimum-variance cone-excitation ratios and the limits of relational color constancy , 2004, Visual Neuroscience.

[32]  Maria Olkkonen,et al.  The effect of background and illumination on color identification of real, 3D objects , 2013, Front. Psychol..

[33]  M. Webster,et al.  Colour constancy influenced by contrast adaptation , 1995, Nature.

[34]  Jon M. Speigle,et al.  Predicting color from gray: the relationship between achromatic adjustment and asymmetric matching. , 1999, Journal of the Optical Society of America. A, Optics, image science, and vision.

[35]  Denis G. Pelli,et al.  ECVP '07 Abstracts , 2007, Perception.

[36]  Katja Doerschner,et al.  Color constancy and hue scaling. , 2006, Journal of vision.

[37]  François Cinotti,et al.  What determines the relationship between color naming, unique hues, and sensory singularities: Illuminations, surfaces, or photoreceptors? , 2015, Journal of vision.

[38]  Ishihara Shinobu,et al.  Ishihara's tests for colour deficiency : the series of plates designed as a test for colour deficiency , 1999 .

[39]  Karl R Gegenfurtner,et al.  Object knowledge modulates colour appearance , 2011, i-Perception.

[40]  Q Zaidi,et al.  Color constancy in variegated scenes: role of low-level mechanisms in discounting illumination changes. , 1997, Journal of the Optical Society of America. A, Optics, image science, and vision.

[41]  Stacey Aston,et al.  Better colour constancy or worse discrimination? Illumination discrimination in colour anomalous observers , 2016 .

[42]  Stacey Aston,et al.  Illumination discrimination in real and simulated scenes , 2016, Journal of vision.

[43]  Karl R Gegenfurtner,et al.  Categorical sensitivity to color differences. , 2013, Journal of vision.

[44]  Bevil R. Conway,et al.  Striking individual differences in color perception uncovered by ‘the dress’ photograph , 2015, Current Biology.

[45]  Michael A. Webster,et al.  Supplemental Information : Asymmetries in blue-yellow color perception and in the color of “ the dress ” , 2015 .

[46]  D. Foster,et al.  Relational colour constancy from invariant cone-excitation ratios , 1994, Proceedings of the Royal Society of London. Series B: Biological Sciences.

[47]  Sérgio M C Nascimento,et al.  Color constancy by asymmetric color matching with real objects in three-dimensional scenes. , 2004, Visual neuroscience.

[48]  Karl R Gegenfurtner,et al.  Categorical color constancy for real surfaces. , 2010, Journal of vision.

[49]  Javier Vazquez-Corral,et al.  A new spectrally sharpened sensor basis to predict color naming, unique hues, and hue cancellation. , 2012, Journal of vision.

[50]  Kaida Xiao,et al.  The achromatic locus: effect of navigation direction in color space. , 2014, Journal of vision.

[51]  Rumi Tokunaga,et al.  Rethinking Colour Constancy , 2015, PloS one.

[52]  Karl R Gegenfurtner,et al.  Effects of memory colour on colour constancy for unknown coloured objects , 2012, i-Perception.

[53]  Alexander D. Logvinenko,et al.  Metamer Mismatching , 2014, IEEE Transactions on Image Processing.

[54]  Jussi Parkkinen,et al.  Databases for spectral color science , 2006 .

[55]  Karl R. Gegenfurtner,et al.  Chromatic Contrast Sensitivity , 2015 .

[56]  D. Macleod,et al.  Ideal white can be yellowish or bluish, but not reddish or greenish , 2010 .

[57]  J. Kulikowski,et al.  Colour constancy as a function of hue. , 1997, Acta psychologica.

[58]  Scott A. Burns,et al.  Multiple metamers: Preserving color matches under diverse illuminants , 1989 .

[59]  M E Churma,et al.  Blue shadows: physical, physiological, and psychological causes. , 1994, Applied optics.

[60]  D. Macleod,et al.  What is white? , 2015, Journal of vision.

[61]  Jonathan I. Flombaum,et al.  Why some colors appear more memorable than others: A model combining categories and particulars in color working memory. , 2015, Journal of experimental psychology. General.

[62]  Graham D. Finlayson,et al.  Chromatic Illumination Discrimination Ability Reveals that Human Colour Constancy Is Optimised for Blue Daylight Illuminations , 2014, PloS one.

[63]  M. Webster,et al.  Variations in normal color vision. IV. Binary hues and hue scaling. , 2005, Journal of the Optical Society of America. A, Optics, image science, and vision.

[64]  J. Cohen,et al.  Metameric color stimuli, fundamental metamers, and Wyszecki's metameric blacks. , 1982, The American journal of psychology.

[65]  J Kevin O'Regan,et al.  Color naming, unique hues, and hue cancellation predicted from singularities in reflection properties. , 2006, Visual neuroscience.

[66]  D. Macleod,et al.  Color appearance depends on the variance of surround colors , 1997, Current Biology.

[67]  D. Brainard,et al.  Mechanisms of color constancy under nearly natural viewing. , 1999, Proceedings of the National Academy of Sciences of the United States of America.

[68]  J. Parkkinen,et al.  Characteristic spectra of Munsell colors , 1989 .

[69]  Christoph Witzel,et al.  The most reasonable explanation of "the dress": Implicit assumptions about illumination. , 2017, Journal of vision.

[70]  David H Foster,et al.  Scene Articulation: Dependence of Illuminant Estimates on Number of Surfaces , 2002, Perception.

[71]  Thomas Wachtler,et al.  "Tilt" in color space: Hue changes induced by chromatic surrounds. , 2015, Journal of vision.