Journal article

Publication year: 2015

Pages: 175-187

Journal: Vision Research

Volume number: 115B

ISSN: 0042-6989

eISSN: 1878-5646

Open access status: Bronze

DOI Link: https://doi.org/10.1016/j.visres.2015.04.010

Publisher: Elsevier

Abstract: 
It is currently debated whether the perception of gloss is linked to the statistical parameters of the retinal image. In particular, it has been suggested that gloss is highly correlated with the skewness of the luminance histogram. However, other psychophysical work with artificial stimuli has shown that skewness alone is not enough to induce the perception of gloss. Here, we analyzed many images of natural surfaces to search for potential statistical correlates of perceived gloss. We found that skewness indeed correlates with gloss when using rendered stimuli, but that the standard deviation, a measure of contrast, correlates better with perceived gloss when using photographs of natural surfaces. We verified the important role of contrast by manipulating skewness and contrast within images. Changing the contrast in images significantly modulates perceived gloss, but manipulating the skewness of the luminance histogram had only a small effect. (C) 2015 Elsevier Ltd. All rights reserved.

Harvard Citation style: Wiebel, C., Toscani, M. and Gegenfurtner, K. (2015) Statistical correlates of perceived gloss in natural images, Vision Research, 115B, pp. 175-187. https://doi.org/10.1016/j.visres.2015.04.010

APA Citation style: Wiebel, C., Toscani, M., & Gegenfurtner, K. (2015). Statistical correlates of perceived gloss in natural images. Vision Research. 115B, 175-187. https://doi.org/10.1016/j.visres.2015.04.010