Perception of saturation in natural objects
Authors: Hedjar, L., Toscani, M. and Gegenfurtner, K.R.
Journal: Journal of the Optical Society of America A: Optics and Image Science, and Vision
Volume: 40
Issue: 3
Pages: A190-A198
eISSN: 1520-8532
ISSN: 1084-7529
DOI: 10.1364/JOSAA.476874
Abstract:The distribution of colors across a surface depends on the interaction between its surface properties, its shape, and the lighting environment. Shading, chroma, and lightness are positively correlated: points on the object that have high luminance also have high chroma. Saturation, typically defined as the ratio of chroma to lightness, is therefore relatively constant across an object. Here we explored to what extent this relationship affects perceived saturation of an object. Using images of hyperspectral fruit and rendered matte objects, we manipulated the lightness–chroma correlation (positive or negative) and asked observers which of two objects appeared more saturated. Despite the negative-correlation stimulus having greater mean and maximum chroma, lightness, and saturation than the positive, observers overwhelmingly chose the positive as more saturated. This suggests that simple colorimetric statistics do not accurately represent perceived saturation of objects—observers likely base their judgments on interpretations about the cause of the color distribution.
https://eprints.bournemouth.ac.uk/38466/
Source: Scopus
Perception of saturation in natural objects.
Authors: Hedjar, L., Toscani, M. and Gegenfurtner, K.R.
Journal: J Opt Soc Am A Opt Image Sci Vis
Volume: 40
Issue: 3
Pages: A190-A198
eISSN: 1520-8532
DOI: 10.1364/JOSAA.476874
Abstract:The distribution of colors across a surface depends on the interaction between its surface properties, its shape, and the lighting environment. Shading, chroma, and lightness are positively correlated: points on the object that have high luminance also have high chroma. Saturation, typically defined as the ratio of chroma to lightness, is therefore relatively constant across an object. Here we explored to what extent this relationship affects perceived saturation of an object. Using images of hyperspectral fruit and rendered matte objects, we manipulated the lightness-chroma correlation (positive or negative) and asked observers which of two objects appeared more saturated. Despite the negative-correlation stimulus having greater mean and maximum chroma, lightness, and saturation than the positive, observers overwhelmingly chose the positive as more saturated. This suggests that simple colorimetric statistics do not accurately represent perceived saturation of objects-observers likely base their judgments on interpretations about the cause of the color distribution.
https://eprints.bournemouth.ac.uk/38466/
Source: PubMed
Perception of saturation in natural objects
Authors: Hedjar, L., Toscani, M. and Gegenfurtner, K.R.
Journal: JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION
Volume: 40
Issue: 3
Pages: A190-A198
eISSN: 1520-8532
ISSN: 1084-7529
DOI: 10.1364/JOSAA.476874
https://eprints.bournemouth.ac.uk/38466/
Source: Web of Science (Lite)
Perception of saturation in natural objects.
Authors: Hedjar, L., Toscani, M. and Gegenfurtner, K.R.
Journal: Journal of the Optical Society of America. A, Optics, image science, and vision
Volume: 40
Issue: 3
Pages: A190-A198
eISSN: 1520-8532
ISSN: 1084-7529
DOI: 10.1364/josaa.476874
Abstract:The distribution of colors across a surface depends on the interaction between its surface properties, its shape, and the lighting environment. Shading, chroma, and lightness are positively correlated: points on the object that have high luminance also have high chroma. Saturation, typically defined as the ratio of chroma to lightness, is therefore relatively constant across an object. Here we explored to what extent this relationship affects perceived saturation of an object. Using images of hyperspectral fruit and rendered matte objects, we manipulated the lightness-chroma correlation (positive or negative) and asked observers which of two objects appeared more saturated. Despite the negative-correlation stimulus having greater mean and maximum chroma, lightness, and saturation than the positive, observers overwhelmingly chose the positive as more saturated. This suggests that simple colorimetric statistics do not accurately represent perceived saturation of objects-observers likely base their judgments on interpretations about the cause of the color distribution.
https://eprints.bournemouth.ac.uk/38466/
Source: Europe PubMed Central
Perception of saturation in natural objects
Authors: Hedjar, L., Toscani, M. and Gegenfurtner, K.R.
Journal: Journal of the Optical Society of America A: Optics and Image Science, and Vision
Volume: 40
Issue: 3
Pages: A190-A198
ISSN: 1084-7529
Abstract:The distribution of colors across a surface depends on the interaction between its surface properties, its shape, and the lighting environment. Shading, chroma, and lightness are positively correlated: points on the object that have high luminance also have high chroma. Saturation, typically defined as the ratio of chroma to lightness, is therefore relatively constant across an object. Here we explored to what extent this relationship affects perceived saturation of an object. Using images of hyperspectral fruit and rendered matte objects, we manipulated the lightness–chroma correlation (positive or negative) and asked observers which of two objects appeared more saturated. Despite the negative-correlation stimulus having greater mean and maximum chroma, lightness, and saturation than the positive, observers overwhelmingly chose the positive as more saturated. This suggests that simple colorimetric statistics do not accurately represent perceived saturation of objects—observers likely base their judgments on interpretations about the cause of the color distribution.
https://eprints.bournemouth.ac.uk/38466/
Source: BURO EPrints