Negative Afterimages From Flicker-Augmented Colors
A patch that alternates between two hues such as dark green and light blue looks greenish on a light gray surround and bluish on a dark gray surround (“flicker-augmented contrast”). Thus, when an edge alternates between two hues in the same location, the visual system selects the more salient hue—th...
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2017-03-01
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| Series: | i-Perception |
| Online Access: | https://doi.org/10.1177/2041669517699414 |
| _version_ | 1818252617954885632 |
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| author | Stuart Anstis |
| author_facet | Stuart Anstis |
| author_sort | Stuart Anstis |
| collection | DOAJ |
| description | A patch that alternates between two hues such as dark green and light blue looks greenish on a light gray surround and bluish on a dark gray surround (“flicker-augmented contrast”). Thus, when an edge alternates between two hues in the same location, the visual system selects the more salient hue—the one with the higher Michelson contrast. However, the afterimage is the same pink, driven by the time integral of the physical, not the perceptual, adapting hues and regardless of the surround luminance. So the process of edge biasing does not transfer to the mechanism that creates afterimages. |
| first_indexed | 2024-12-12T16:27:02Z |
| format | Article |
| id | doaj.art-a96356ec3cdf4cea9c3b47f9b8a6433a |
| institution | Directory Open Access Journal |
| issn | 2041-6695 |
| language | English |
| last_indexed | 2024-12-12T16:27:02Z |
| publishDate | 2017-03-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | i-Perception |
| spelling | doaj.art-a96356ec3cdf4cea9c3b47f9b8a6433a2022-12-22T00:18:52ZengSAGE Publishingi-Perception2041-66952017-03-01810.1177/204166951769941410.1177_2041669517699414Negative Afterimages From Flicker-Augmented ColorsStuart AnstisA patch that alternates between two hues such as dark green and light blue looks greenish on a light gray surround and bluish on a dark gray surround (“flicker-augmented contrast”). Thus, when an edge alternates between two hues in the same location, the visual system selects the more salient hue—the one with the higher Michelson contrast. However, the afterimage is the same pink, driven by the time integral of the physical, not the perceptual, adapting hues and regardless of the surround luminance. So the process of edge biasing does not transfer to the mechanism that creates afterimages.https://doi.org/10.1177/2041669517699414 |
| spellingShingle | Stuart Anstis Negative Afterimages From Flicker-Augmented Colors i-Perception |
| title | Negative Afterimages From Flicker-Augmented Colors |
| title_full | Negative Afterimages From Flicker-Augmented Colors |
| title_fullStr | Negative Afterimages From Flicker-Augmented Colors |
| title_full_unstemmed | Negative Afterimages From Flicker-Augmented Colors |
| title_short | Negative Afterimages From Flicker-Augmented Colors |
| title_sort | negative afterimages from flicker augmented colors |
| url | https://doi.org/10.1177/2041669517699414 |
| work_keys_str_mv | AT stuartanstis negativeafterimagesfromflickeraugmentedcolors |