![](./images/home.jpg)
![](./images/bar_spacer.gif)
Catégories
![](./images/expand_all.gif)
![](./images/collapse_all.gif)
Etendre la recherche sur niveau(x) vers le bas
Illuminant metamerism potentiality of metameric pairs / Seyed Hossein Amirshahi in COLORATION TECHNOLOGY, Vol. 128, N° 5 (2012)
![]()
[article]
Titre : Illuminant metamerism potentiality of metameric pairs Type de document : texte imprimé Auteurs : Seyed Hossein Amirshahi, Auteur ; Peyvandi Shahram, Auteur ; Boris Sluban, Auteur Année de publication : 2012 Article en page(s) : p. 341-349 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorimétrie
Métamérisme
vision des couleursIndex. décimale : 667.3 Teinture et impression des tissus Résumé : Indices for describing the degree of metamerism are based on either the deviation of the spectra of a metameric pair or the colour difference of the pair under test conditions. The magnitude of illuminant metamerism is commonly evaluated by measuring the colour difference under the test illuminant. The calculated colour differences absolutely vary with the selected test illuminants, so the measured (special) index of metamerism could be considered as a test-illuminant-dependent value. The spectral-based indices of metamerism act as a single-number value, but most of them are criticised for their poor correlation with visual assessment. In this paper, a general metric is developed for evaluating the upper limit of the degree of illuminant metamerism. The suggested approach combines the advantages of general and special indices, avoiding their drawbacks at the same time. The performance of the formula is analysed in a number of numerical experiments, as well as by practical testing. Note de contenu : - Definition of Illuminant Metamerisme Potentiality
- The magnitude of Colorimetric Shift
- The magnitude of Colour Difference
- Illuminant Metamerism Potentiality of a Metameric Pair
- The reliability of Metamerisme Potentiality
- Numerical Experiment
- Practical experiment
- Printer Characterisation
- Sample preparation
- Reliability of Illuminant Metamerism Potentiality of a Parameric PairDOI : 10.1111/j.1478-4408.2012.00386.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2012.00386.x/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=15801
in COLORATION TECHNOLOGY > Vol. 128, N° 5 (2012) . - p. 341-349[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 14163 - Périodique Bibliothèque principale Documentaires Disponible Illumination compensation in textile colour constancy, based on an improved least-squares support vector regression and an improved GM(1,1) model of grey theory / Jian-xin Zhang in COLORATION TECHNOLOGY, Vol. 133, N° 2 (04/2017)
![]()
[article]
Titre : Illumination compensation in textile colour constancy, based on an improved least-squares support vector regression and an improved GM(1,1) model of grey theory Type de document : texte imprimé Auteurs : Jian-xin Zhang, Auteur ; Pan Zhang, Auteur ; Xiao-liang Wu, Auteur ; Zhi-yu Zhou, Auteur ; Chong Yang, Auteur Année de publication : 2017 Article en page(s) : p. 128-134 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Algorithmes
Textiles et tissus
vision des couleursIndex. décimale : 667.3 Teinture et impression des tissus Résumé : In many colour-related fields, such as textile colour measurement systems based on computer vision as well as dyestuff synthesis, colour constancy with illumination variation is a key problem to be solved. A new algorithm of illumination compensation for colour constancy for textured textiles is proposed in this paper, combining an improved least-squares support vector regression (LSSVR) and an improved GM(1,1) model of grey theory. The LSSVR algorithm was improved by determining the error limitation according to the distance between a standard sample and a test sample, while the improved GM(1,1) model used the average value of the sequence x^(1)(1)-x^(1)(n) as the initial iteration value. The disadvantage of LSSVR, that it easily falls into global optimisation, can be compensated for by the local optimisation capacity of the GM(1,1) model. Experimental results show that the algorithm of this paper is very stable and provides good illumination compensation, whereby the time complexity of compensation is reduced by repeatedly processing fractional data with the LSSVR algorithm, and the prediction accuracy is improved by combining the improved GM(1,1) model and the LSSVR algorithm. Note de contenu : - ILLUMINATION COMPENSATION MODEL WITH IMPROVED LSSVR AND GM(1,1) : Improved LSSVR algorithm - GM(1,1) model with initial value as average of x^(1)(1)-x^(1)(n)
- ILLUMINATION COMPENSATION : Colour space - Illumination compensation procedure
- EXPERIMENTS AND DISCUSSION : Comparison of the LSSVR + GM(1,1) algorithm with the SSR and BP_Adaboost algorithms - Evaluation of the LSSVR+GM(1,1) algorithmDOI : 10.1111/cote.12243 En ligne : https://drive.google.com/file/d/1_uIjBeBakHbXbUrT0Y7yuufOr5nvev-Y/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28226
in COLORATION TECHNOLOGY > Vol. 133, N° 2 (04/2017) . - p. 128-134[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 18801 - Périodique Bibliothèque principale Documentaires Disponible Innovative testing technologies / Gabi Kigle-Böckle in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 200, N° 4555 (12/2010)
![]()
[article]
Titre : Innovative testing technologies Type de document : texte imprimé Auteurs : Gabi Kigle-Böckle, Auteur ; Henrik Folkerts, Auteur Année de publication : 2010 Article en page(s) : p. 14-17 Langues : Anglais (eng) Catégories : Colorimétrie
Pigments à effets spéciaux
vision des couleursIndex. décimale : 667.2 Colorants et pigments Résumé : Part one : Technologies developed to objectively describe the total impression of colour - multi-angle colour and effect changes (sparkle to graininess), as well as paint defects such as 'cloudiness-mottling'. Note de contenu : - Colour measurement on effect coatings
- Effect measurement of effect coatings
- Instrumental measurement of total colour impression
- Sparkle measurement under direct illumination at three angles
- Graininess measurement under diffused illumination.En ligne : https://drive.google.com/file/d/1a4a-uRJaqCERUs2w9cZgp5QOYGEEuOMo/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10635
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 200, N° 4555 (12/2010) . - p. 14-17[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 012691 - Périodique Bibliothèque principale Documentaires Disponible
[article]
Titre : Let there be light Type de document : texte imprimé Année de publication : 2019 Article en page(s) : p. 172-175 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Diodes électroluminescentes
Eclairage
Lampes à halogène
Lumière artificielle
vision des couleursIndex. décimale : 667.9 Revêtements et enduits Résumé : Uniform colour is directly associated with high quality and influences our purchasing decisions. This is especially true for multi-component products consisting of different materials and those being produced by different suppliers. The human eye is often the final judge for approving a new design. Therefore, visual inspection conditions need to be standardised to guarantee repeatable visual results. The most important colour match is under natural daylight. The CIE (Commission Internationale de l'Éclairage) defined several standard D illuminants with D65 being the most important one. The lamps used in a light booth must simulate D65 as closely as possible. Until now, fluorescent tubes were used to simulate D65. A new unique lighting setup is now able to achieve class A quality by simulating CIE D65 with a smart combination of filtered halogen lamps and LEDs. Note de contenu : - STANDARDISATION OF VISUAL COLOUR EVALUATIONS : The observer - The object - The surroundings - The illumination - Terms for characterisation of light - Colour temperature (CT) and correlated colour temperature (CCT) - Spectral power distribution - Colour rendering index (CRI) - Metamerism index (MI)
- QUALITY MEASURES FOR SIMULATING CIE ILLUMINANTS : Definitions of light source and illuminant - Standard illuminants
- BEST-IN-CLASS DAYLIGHT WITH BYKO-SPECTRA PRO
- Fig. 1 : Planckian locus in the CIE x, y chromaticity space
- Fig. 2 : SPD curve of CIE standard illuminant 1 and illuminant A by filtered tungsten halogen
- Fig. 3 : CIE illuminants F2 and F11 and their simulation with fluorescent tubes in byko-spectra pro
- Fig. 4 : Daylight simulation with fluorescent tube
- Fig. 5 : Daylight simulation with combination of filtered halogen lamps with and withou LEDs
- Fig. 6 : The byko-spectra pro light booth
- Fig. 7 : The byko-spectra pro luminaire
- Formula 1 : Calculation of spectral power
- Formula 2 : Calculation of relative spectral power
- Formula 3 : Mathematical normalisation of a spectral power distribution curve
- Formula 4 : Calculation of the metamerism indices Mlvis and Mluv
- Table 1 : Categorisation of Mlvis and Mluv depending on colour difference formulaEn ligne : https://drive.google.com/file/d/1ErMZ056F3Ghmn84dW1KRAD5XT6tjg1bK/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32816
in SURFACE COATINGS INTERNATIONAL > Vol. 102.4 (08-09/2019) . - p. 172-175[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 21103 - Périodique Bibliothèque principale Documentaires Disponible
[article]
Titre : Let there be light ! Type de document : texte imprimé Année de publication : 2019 Article en page(s) : p. 18-19 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Eclairage
Lumière artificielle
Lumière du jour
Métamérisme
vision des couleursIndex. décimale : 535.6 Couleur Résumé : The author reports on how to master the challenge of bringing true daylight into the laboratory.
Uniform colour is directly associated with high quality and influences our purchasing decision. This is especially true for multi-component products consisting of different materials and/or being produced by different suppliers. The human eye is often the final judge for approving a new design. Therefore, the visual inspection conditions need to be standardised to guarantee repeatable visual results.
The most important colour match is under naturel daylight. The CIE defined several standard D illuminants with D65 being the most important one. The lames used in a light booth must simulate D65 as close as possible. Until now, fluorescent tubes were used to simulate D65. A new unique lighting setup is now able to achieve class A quality by simulating CIE D65 with a smart combination of filtered halogen lamps and LEDs.Note de contenu : - CIE metamerism index-MI
- Standard illuminant D65
- Best in class daylight with Byko-spectra pro
- Table 1 : Categorisation of MIvis and MIuv depending on colour difference formula
- Fig. 1 : Daylight simulation with fluorescent tube
- Fig. 2 : Daylight simulation with combination of filtered halogen lamps with and without LEDsEn ligne : https://drive.google.com/file/d/1alVLylxoXHyHUX6syiBh9g1W1glwcGDD/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33123
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 209, N° 4655 (10/2019) . - p. 18-19[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 21239 - Périodique Bibliothèque principale Documentaires Disponible PermalinkMetamerism and its management / Filippo Busolo in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 205, N° 4614 (11/2015)
![]()
PermalinkA method for dyeing cotton fabric with anthocyanin dyes extracted from mulberry (Morus rubra) fruits / Huayin Wang in COLORATION TECHNOLOGY, Vol. 132, N° 3 (06/2016)
![]()
PermalinkMethods for designing characterisation targets for digital cameras / Yi-Fan Chou in COLORATION TECHNOLOGY, Vol. 129, N° 3 (06/2013)
![]()
PermalinkMondial couleur 85 / International Color Association / Paris : Centre Français de la Couleur (1985)
PermalinkMondial couleur 85 / International Color Association / Paris : Centre Français de la Couleur (1985)
PermalinkPermalinkOptimal yarn colour combination for full-colour fabric design and mixed-colour chromaticity coordinates based on CIE chromaticity diagram analysis / Qizheng Li in COLORATION TECHNOLOGY, Vol. 130, N° 6 (12/2014)
![]()
PermalinkPackaging designers borrow technologies from other industries in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 201, N° 4559 (04/2011)
![]()
PermalinkPeintures. Comparaison de la couleur des pigments (ton en masse des pâtes broyées) - Norme NF T 30-025 / Association Française de Normalisation (Paris) / Saint-Denis La Plaine : Association Française de Normalisation (AFNOR) (1978)
PermalinkPermalinkPlastiques. Matières de base pour polyuréthannes, polyesters, polyéthers et isocyanates. Appréciation visuelle de la coloration en unités Gardner - Norme NF T 52-151 / Association Française de Normalisation (Paris) / Saint-Denis La Plaine : Association Française de Normalisation (AFNOR) (1979)
PermalinkPrediction of a nail polish colour applied on a nail / C. Monpeurt in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 40, N° 1 (02/2018)
![]()
PermalinkPermalinkQuality of the daylight sources for industrial colour control / Robert Hirschler in COLORATION TECHNOLOGY, Vol. 127, N° 2 (2011)
![]()
PermalinkQuantification and prediction of visually perceived specular gloss at three illumination/viewing geometries / Fereshteh Mirjalili in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 13, N° 2 (03/2016)
![]()
PermalinkQuantifying the appearance of modern effect finishes / S. Weixel in SURFACE COATINGS INTERNATIONAL, Vol. 93, 5 (10/2010)
![]()
PermalinkPermalinkRetanning performance of carboxymethyl starch and its effects on dyeing / Cigdem Kilicarislan Ozkan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXVII, N° 2 (02/2022)
![]()
PermalinkPermalinkStructural colours inspired by nature / Hendrik Hölscher in EUROPEAN COATINGS JOURNAL (ECJ), N° 11 (11/2018)
![]()
PermalinkStudies of the application of biocolorant for leather dyeing using Monascus Purpureus / A. Tamil Selvi in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXIII, N° 4 (04/2018)
![]()
PermalinkThe effect of lighting changes on simultaneous colour contrast : a new aspect of colour rendition / Alessandro Rizzi in COLORATION TECHNOLOGY, Vol. 134, N° 3 (06/2018)
![]()
PermalinkThe impact of viewing conditions on observer variability for cross-media colour reproduction / Yoon Ji Cho in COLORATION TECHNOLOGY, Vol. 135, N° 3 (06/2019)
![]()
PermalinkThe light, colour and interior coating and their alliance influencing on human well-being / Mithu Bhowmik in PAINTINDIA, Vol. LXXI, N° 1 (01/2021)
![]()
PermalinkThe relationship between colour harmony and colour emotions-using two-colour combinations applied on 3D colour configuration / Wen-Yuan Lee in COLORATION TECHNOLOGY, Vol. 138, N° 4 (08/2022)
![]()
PermalinkPermalinkUse of a predictive colour model for managing the colour appearance of two-colour woven fabrics / Krste Dimitrovski in COLORATION TECHNOLOGY, Vol. 136, N° 3 (06/2020)
![]()
PermalinkPermalinkWhy accurate colour matching needs to control for gloss / Jason Loehr in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 209, N° 4655 (10/2019)
![]()
Permalink