Luminance cues constrain chromatic blur discrimination in natural scene stimuli
Introducing blur into the color components of a natural scene has very little effect on its percept, whereas blur introduced into the luminance component is very noticeable. Here we quantify the dominance of luminance information in blur detection and examine a number of potential causes. We show th...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Published: |
Association for Research in Vision and Ophthalmology
2013
|
| Online Access: | https://eprints.nottingham.ac.uk/2485/ |
| _version_ | 1848790797187547136 |
|---|---|
| author | Sharman, Rebecca J. McGraw, Paul V. Peirce, Jonathan W. |
| author_facet | Sharman, Rebecca J. McGraw, Paul V. Peirce, Jonathan W. |
| author_sort | Sharman, Rebecca J. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Introducing blur into the color components of a natural scene has very little effect on its percept, whereas blur introduced into the luminance component is very noticeable. Here we quantify the dominance of luminance information in blur detection and examine a number of potential causes. We show that the interaction between chromatic and luminance information is not explained by reduced acuity or spatial resolution limitations for chromatic cues, the effective contrast of the luminance cue, or chromatic and achromatic statistical regularities in the images. Regardless of the quality of chromatic information, the visual system gives primacy to luminance signals when determining edge location. In natural viewing, luminance information appears to be specialized for detecting object boundaries while chromatic information may be used to determine surface properties. |
| first_indexed | 2025-11-14T18:18:19Z |
| format | Article |
| id | nottingham-2485 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T18:18:19Z |
| publishDate | 2013 |
| publisher | Association for Research in Vision and Ophthalmology |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-24852020-05-04T16:35:58Z https://eprints.nottingham.ac.uk/2485/ Luminance cues constrain chromatic blur discrimination in natural scene stimuli Sharman, Rebecca J. McGraw, Paul V. Peirce, Jonathan W. Introducing blur into the color components of a natural scene has very little effect on its percept, whereas blur introduced into the luminance component is very noticeable. Here we quantify the dominance of luminance information in blur detection and examine a number of potential causes. We show that the interaction between chromatic and luminance information is not explained by reduced acuity or spatial resolution limitations for chromatic cues, the effective contrast of the luminance cue, or chromatic and achromatic statistical regularities in the images. Regardless of the quality of chromatic information, the visual system gives primacy to luminance signals when determining edge location. In natural viewing, luminance information appears to be specialized for detecting object boundaries while chromatic information may be used to determine surface properties. Association for Research in Vision and Ophthalmology 2013-03-22 Article PeerReviewed Sharman, Rebecca J., McGraw, Paul V. and Peirce, Jonathan W. (2013) Luminance cues constrain chromatic blur discrimination in natural scene stimuli. Journal of Vision, 13 (4). 14/1-14/10. ISSN 1534-7362 http://www.journalofvision.org/content/13/4/14.abstract doi:10.1167/13.4.14 doi:10.1167/13.4.14 |
| spellingShingle | Sharman, Rebecca J. McGraw, Paul V. Peirce, Jonathan W. Luminance cues constrain chromatic blur discrimination in natural scene stimuli |
| title | Luminance cues constrain chromatic blur discrimination in
natural scene stimuli |
| title_full | Luminance cues constrain chromatic blur discrimination in
natural scene stimuli |
| title_fullStr | Luminance cues constrain chromatic blur discrimination in
natural scene stimuli |
| title_full_unstemmed | Luminance cues constrain chromatic blur discrimination in
natural scene stimuli |
| title_short | Luminance cues constrain chromatic blur discrimination in
natural scene stimuli |
| title_sort | luminance cues constrain chromatic blur discrimination in
natural scene stimuli |
| url | https://eprints.nottingham.ac.uk/2485/ https://eprints.nottingham.ac.uk/2485/ https://eprints.nottingham.ac.uk/2485/ |