Weighted Geometric Mean (WGM) method: A new chromatic adaptation model.
The human visual system has undergone evolutionary changes to develop sophisticated mechanisms that enable stable color perception under varying illumination. These mechanisms are known as chromatic adaptation, a fundamental aspect of color vision. Chromatic adaptation can be divided into two catego...
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| Format: | Article |
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Public Library of Science (PLoS)
2023-01-01
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| Series: | PLoS ONE |
| Online Access: | https://doi.org/10.1371/journal.pone.0290017 |
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| _version_ | 1849387909909577728 |
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| author | Che Shen Mark D Fairchild |
| author_facet | Che Shen Mark D Fairchild |
| author_sort | Che Shen |
| collection | DOAJ |
| description | The human visual system has undergone evolutionary changes to develop sophisticated mechanisms that enable stable color perception under varying illumination. These mechanisms are known as chromatic adaptation, a fundamental aspect of color vision. Chromatic adaptation can be divided into two categories: sensory adaptation, which involves automatic adjustments in the visual system, such as retinal gain control, in response to changes in the stimulus, and cognitive adaptation, which depends on the observer's knowledge of the scene and context. The geometric mean has been suggested to be the fundamental mathematical relationship that governs peripheral sensory adaptation. This paper proposes the WGM model, an advanced chromatic adaptation model based on a weighted geometric mean approach that can anticipate incomplete adaptation as it moves along the Planckian or Daylight locus. Compared with two other chromatic adaptation models (CAT16 and vK20), the WGM model is tested with different corresponding color data sets and found to be a significantly improvement while also predicting degree of adaptation (sensory and cognitive adaptation) in a physiologically plausible manner. |
| format | Article |
| id | doaj-art-7d3aa56f7d674cff825e0588da04f467 |
| institution | Kabale University |
| issn | 1932-6203 |
| language | English |
| publishDate | 2023-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj-art-7d3aa56f7d674cff825e0588da04f4672025-08-20T03:42:26ZengPublic Library of Science (PLoS)PLoS ONE1932-62032023-01-01188e029001710.1371/journal.pone.0290017Weighted Geometric Mean (WGM) method: A new chromatic adaptation model.Che ShenMark D FairchildThe human visual system has undergone evolutionary changes to develop sophisticated mechanisms that enable stable color perception under varying illumination. These mechanisms are known as chromatic adaptation, a fundamental aspect of color vision. Chromatic adaptation can be divided into two categories: sensory adaptation, which involves automatic adjustments in the visual system, such as retinal gain control, in response to changes in the stimulus, and cognitive adaptation, which depends on the observer's knowledge of the scene and context. The geometric mean has been suggested to be the fundamental mathematical relationship that governs peripheral sensory adaptation. This paper proposes the WGM model, an advanced chromatic adaptation model based on a weighted geometric mean approach that can anticipate incomplete adaptation as it moves along the Planckian or Daylight locus. Compared with two other chromatic adaptation models (CAT16 and vK20), the WGM model is tested with different corresponding color data sets and found to be a significantly improvement while also predicting degree of adaptation (sensory and cognitive adaptation) in a physiologically plausible manner.https://doi.org/10.1371/journal.pone.0290017 |
| spellingShingle | Che Shen Mark D Fairchild Weighted Geometric Mean (WGM) method: A new chromatic adaptation model. PLoS ONE |
| title | Weighted Geometric Mean (WGM) method: A new chromatic adaptation model. |
| title_full | Weighted Geometric Mean (WGM) method: A new chromatic adaptation model. |
| title_fullStr | Weighted Geometric Mean (WGM) method: A new chromatic adaptation model. |
| title_full_unstemmed | Weighted Geometric Mean (WGM) method: A new chromatic adaptation model. |
| title_short | Weighted Geometric Mean (WGM) method: A new chromatic adaptation model. |
| title_sort | weighted geometric mean wgm method a new chromatic adaptation model |
| url | https://doi.org/10.1371/journal.pone.0290017 |
| work_keys_str_mv | AT cheshen weightedgeometricmeanwgmmethodanewchromaticadaptationmodel AT markdfairchild weightedgeometricmeanwgmmethodanewchromaticadaptationmodel |