Revisiting the Optical Society of America Uniform Color Scales system : past, present and future challenges / Manuel Melgosa in COLORATION TECHNOLOGY, Vol. 137, N° 1 (02/2021)  

[article]  inCOLORATION TECHNOLOGY > Vol. 137, N° 1 (02/2021) . - p. 33-37 Titre : Revisiting the Optical Society of America Uniform Color Scales system : past, present and future challenges Type de document : texte imprimé Auteurs : Manuel Melgosa, Auteur ; Dibakar Pant, Auteur ; Gabriele Simone, Auteur Année de publication : 2021 Article en page(s) : p. 33-37 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 535.6 Couleur Résumé : As a tribute to Claudio Oleari (1944-2018), in this article we remember some of his ideas about the role of physics and engineering in modern colour science. In particular, we consider his emphasis on the strong content of the work carried out during 1947-1974 by the Committee on Uniform Scales of the Optical Society of America. Oleari considered the Optical Society of America Uniform Color scales system a very useful basis for new developments in colour science, including approximately uniform colour spaces, colour difference formulae and chromatic adaptation transforms. Papers published by Oleari and colleagues constitute an original alternative approach to the current generalised assumption of CIELAB made by most researchers and practitioners of colour science. We should seek a deeper understanding of colour vision to allow the development of new colour spaces, in which colour appearance could be more neatly expressed. Note de contenu : - OSA-UCS system colour atlas and colour spaces - Colour differences and chromatic adaptation DOI : 10.1111/cote.12509 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12509 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35586 [article]

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The limits of colorimetry in cultural heritage applications / Alice Plutino in COLORATION TECHNOLOGY, Vol. 137, N° 1 (02/2021)  

[article]  inCOLORATION TECHNOLOGY > Vol. 137, N° 1 (02/2021) . - p. 56-63 Titre : The limits of colorimetry in cultural heritage applications Type de document : texte imprimé Auteurs : Alice Plutino, Auteur ; Gabriele Simone, Auteur Année de publication : 2021 Article en page(s) : p. 56-63 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 535.6 Couleur Résumé : Colours in cultural heritage are not only means of expression, but also materials with physical and chemical properties. Since the beginning of the current century, colorimetry has become a fundamental field aiming at restoring, preserving and valorising the art works. There are different colorimetric applications in cultural heritage (eg, from light design to digitisation and modelling), and the variety of cultural material is extremely wide, from statues and frescoes, to old book and films. In this heterogeneous context, the development of instruments, measurements and tools faithful to the original objects are fundamental to correctly reproducing and representing materials, contrast and colours of the works under analysis. In this work, we will analyse the main limits of colorimetry applied in cultural heritage domain considering a variety of applications on physical colour representation and on digital colour reproduction. We will focus on main state-of-the-art studies, regulations and guidelines for objects illumination, colour analysis and digitisation workflow showing some practical example of issues encountered by standard pointwise colorimetry. Note de contenu : - Physical colour representation - Digital colour reproduction DOI : 10.1111/cote.12500 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12500 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35589 [article]

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