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Advisor(s)
Abstract(s)
The aim of this work was to compare the preferred chromatic composition for unfamiliar
paintings with the original. Stimuli were images of paintings generated by rotating the color
volume around the L* axis in CIELAB color space. The images were presented on a CRT. Four
paintings were abstract from Amadeo de Souza-Cardoso, two had figurative elements from the
same painter, two were abstract and two were figurative from other painters. In each trial a
painting selected at random from the set was presented with its color volume rotated by angle
selected at random. The task of the observer was to adjust the angle of the chromatic rotation for
best subjective impression. Three groups of observers carried out the experiment: 50 without
previous knowledge of the paintings, 8 experts in art but unfamiliar with the paintings tested and
6 experts in the paintings of Amadeo de Souza-Cardoso. It was found that the distribution of
angles selected for data pooled across paintings for the non-specialist observers could be
described by a Gaussian function centred at -2 deg, i.e. close to the original colors of the
paintings, and with a FWHM of 64 deg, just about 1.5 above the threshold to detect a chromatic
change.
Description
Keywords
Preferred chromatic composition Amadeo de Souza-Cardoso
Pedagogical Context
Citation
NASCIMENTO, Sérgio M.C.; LINHARES, João M.M.; JOÃO, Catarina A. R.; AMANO, Kinjiro; MONTAGNER, Cristina; MELO, Maria J.; VILARIGUES, Márcia; FREITAS, Maria Helena de; ALFARO, Catarina; BAILÃO, Ana – The preferred chromatic composition of unfamiliar paintings is similar to original. In 3rd International Meeting on Retouching of Cultural Heritage, RECH 3. Porto, Portugal, 23-24 October, 2015. - In BAILÃO, Ana; HENRIQUES, Frederico; BIDARRA, Ana (eds.) – Book of abstracts: RECH3. [Porto: Escola Artística e Profissional Árvore, 2016]. p. 20