Document Detail


Psychophysical estimation of the best illumination for appreciation of Renaissance paintings.
MedLine Citation:
PMID:  16962011     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A variety of light sources are used in museum environments where the main concern is to prevent damaging effects of the light on paintings. Yet, the visual impression of an artistic painting is strongly influenced by the intensity and spectral profile of the illumination. The aim of this work was to determine psychophysically the spectral profile of the illumination preferred by observers when seeing paintings dated from the Renaissance époque and to investigate how their preferences correlate with the color temperature of the illumination and with the chromatic diversity of the paintings. Hyperspectral images of five oil paintings on wood were collected at the museum and the appearance of the paintings under five representative illuminants computed. Chromatic diversity was estimated by computing the representation of the paintings in the CIELAB color space and by counting the number of nonempty unit cubes occupied by the corresponding color volume. A paired-comparison experiment using precise cathode ray tube (CRT) reproductions of the paintings rendered with several illuminant pairs with different color temperatures was carried out to determine observers' preference. The illuminant with higher color temperature was always preferred except for one pair where no clear preference was expressed. The preferred illuminant produced the larger chromatic diversity, and for the condition where no specific illuminant was preferred the number of colors produced by the illuminant pair was very similar, a result suggesting that preference could have been influenced by chromatic diversity.
Authors:
Paulo D Pinto; João M M Linhares; João A Carvalhal; Sérgio M C Nascimento
Publication Detail:
Type:  Comparative Study; Historical Article; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Visual neuroscience     Volume:  23     ISSN:  0952-5238     ISO Abbreviation:  Vis. Neurosci.     Publication Date:    2006 May-Aug
Date Detail:
Created Date:  2006-09-11     Completed Date:  2006-10-18     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8809466     Medline TA:  Vis Neurosci     Country:  England    
Other Details:
Languages:  eng     Pagination:  669-74     Citation Subset:  IM    
Affiliation:
Department of Physics, Campus de Gualtar, University of Minho, Braga, Portugal.
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MeSH Terms
Descriptor/Qualifier:
Affect / physiology*
Color Perception / physiology*
Color Perception Tests / methods
History, 15th Century
History, 16th Century
History, Medieval
Humans
Lighting*
Paintings / history*,  psychology*
Photic Stimulation / methods
Psychophysiology / methods

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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