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What scene information is needed for models of colour appearance in the natural world ? / John J. McCann in COLORATION TECHNOLOGY, Vol. 137, N° 1 (02/2021)
[article]
Titre : What scene information is needed for models of colour appearance in the natural world ? Type de document : texte imprimé Auteurs : John J. McCann, Auteur Année de publication : 2021 Article en page(s) : p. 5-14 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 535.6 Couleur Résumé : Colorimetry is an essential tool in every part of colour. This article looks over our shoulders at the colour research of Maxwell, Wright, Land and Wyszecki to build a framework for colour. Then, the article looks forward to the needs of digital imaging's future. Colour is the fusion of today's imaging technology with our understanding of colour. Molecular physical chemistry describes the light–matter interactions, while human colour is controlled by neurons that compare light from the entire scene, covering a nearly 180° visual angle. This article's question asks about the information required by a future Model of Colour Appearance that is able to predict any scene : all natural scenes and any experimental display. Note de contenu : - FRAMEWORK : Light–matter interactions - Neural spatial comparisons
- COLORIMETRY
- APPEARANCE SCIENCE : Neural spatial comparisons
- COLOUR TRANSFORMATIONS, CALCULATIONS, AND MODELS : Position in colour space - Uniform colour space (white column) - Colour constancy (white column) - Spatial: contrast and assimilation (white column) - Hybrid : relative colorimetry transformations (grey column) - CIELAB and CIELUV uniform colour spaces and colour difference formulae—1976 (grey column) - CIECAM colour appearance models (grey column) - Colour constancy (grey column) - Spatial : contrast and assimilation - Summary of relative colorimetry (grey column)
- WYSZECKI'S WARNINGDOI : 10.1111/cote.12502 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12502 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35582
in COLORATION TECHNOLOGY > Vol. 137, N° 1 (02/2021) . - p. 5-14[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22843 - Périodique Bibliothèque principale Documentaires Disponible Why accurate colour matching needs to control for gloss / Jason Loehr in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 209, N° 4655 (10/2019)
[article]
Titre : Why accurate colour matching needs to control for gloss Type de document : texte imprimé Auteurs : Jason Loehr, Auteur Année de publication : 2019 Langues : Anglais (eng) Catégories : Brillance (optique) -- Mesure
Colorimétrie
vision des couleursIndex. décimale : 535.6 Couleur Résumé : The author explains what makes gloss and colour management so challenging, how to measure and account for gloss and why it is so important.
It's widely recognised that visual colour evaluation can be imprecise. Even under the same lighting conditions, two individuels can still see and describe colour differently due to a variety of physical factors. In order to overcome this, the industry looks to spectrophotometers and specialised software that can accurately match, correct and control colour.
Of note, samples with differing gloss levels can present unique challenges for both visual assessment and digital colour management.Note de contenu : - What makes gloss and colour measurement so challenging ?
- How to measure and account for gloss
- Why colour management and gloss compensation are importantEn ligne : https://drive.google.com/file/d/1NFTYBP6OcnwGCXid4F-8wI5SvrRCqeX4/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33122
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 209, N° 4655 (10/2019)[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21239 - Périodique Bibliothèque principale Documentaires Disponible