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Articoli di riviste sul tema "Colour"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 25 luglio 2025

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1

Stanikūnas, Rytis, Laimonas Puišys, Aldona Radzevičienė, and Henrikas Vaitkevičius. "Colour Preference for Two-Colour Combinations." Psichologija 61 (July 7, 2020): 8–20. http://dx.doi.org/10.15388/psichol.2020.12.

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What determines which colour combinations will be attractive to a person and which will not? Is colour attractiveness only a subjective human experience, or can we predict it based on physical colour parameters? One of the pioneers of the attraction of colour theories was Michel Eugène Chevreul (1786–1889). He distinguished two types of colour harmony – analog colour and contrast – and tried to describe what harmonics are based on physical colour parameters. This was later done by other scientists. Later, semantic evaluation of colours was introduced and factor analysis attempted to identify e

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Jermyn, Jacqueline. "A Comparison of Extracted Dominant Colours of Twelve Cosmopolitan Cities." International Journal for Research in Applied Science and Engineering Technology 10, no. 3 (2022): 1569–82. http://dx.doi.org/10.22214/ijraset.2022.40934.

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Abstract: Metropolitan cities are large multi-cultural urban areas. Their colour schemes, which contribute to their unique identities, are influenced by factors, such as when the city was established, climate, city ordinances, and cultural heritage. City colours also evolve overtime due to new construction materials, innovative building designs, and urban development. The objective of this study is to determine if there are similarities in dominant colours for twelve metropolitan cities spanning six continents. They include Cairo, Cape Town, Singapore, Tokyo, Perth, Sydney, London, Madrid, Mex

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3

Pitchford, Nicola J., and Kathy T. Mullen. "Is the Acquisition of Basic-Colour Terms in Young Children Constrained?" Perception 31, no. 11 (2002): 1349–70. http://dx.doi.org/10.1068/p3405.

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We investigated whether the learning of colour terms in childhood is constrained by a developmental order of acquisition as predicted by Berlin and Kay [1969 Basic Color Terms (Berkeley, CA: University of California Press)]. Forty-three children, aged between 2 and 5 years and grouped according to language ability, were given two tasks testing colour conceptualisation. Colour comprehension was assessed in a spoken-word-to-colour-matching task in which a target colour was presented in conjunction with two distractor colours. Colour naming was measured in an explicit naming task in which colours

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4

K J, Sannapapamma, Sakeena Naikwadi, Deepa Bhairappanavar, Rajesh Patil, and Y. R. Aladakatti. "Effect of scouring and laundering on functional properties of natural colour cotton fabric." Environment Conservation Journal 23, no. 1&2 (2022): 143–53. http://dx.doi.org/10.36953/ecj.021787-2120.

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Natural color cotton is eco-supportive as they possess colour naturally in varied shades viz., brown, green, cream and other tints and shades of these colours. It has unique comfort and handle property which provides soothing to the wearer. A medium brown natural colour cotton fibre was spun into 20s count yarn on open end spinning and the pure colour cotton fabric was developed on handloom and subjected to scouring. The scoured natural colour cotton fabric undergone with multiple wash cycles and assessed for mechanical, functional properties, colour fastness to sunlight and washing properties

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5

Thodeti.Suresh, Dr. G. Srinivasu Prof. E. Kesava Reddy. "Verifying the Neighbouring k-edge Coloration Technique for Bipartite Graphs." Scandinavian Journal of Information Systems 35, no. 1 (2023): 727–32. https://doi.org/10.5281/zenodo.7807462.

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This paper focuses on verifying the neighbouring k-edge coloration technique for balancing multi-color problems in the bipartite graph. Thus, it eliminates triangular copies of similar colour shades while maintaining exactly two colours spacing between the edges. It is achieved by inducing bipartite color selections from two unique color sets say   and  . Thus, ensures the minimum colour interference exists by employing a fair version of the neighbouring k-edge colouring technique.  Theoretical evidence, theorems, and proofs are discussed, and results shows the superiority

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6

Jonauskaite, Domicele, Lucia Camenzind, C. Alejandro Parraga, et al. "Colour-emotion associations in individuals with red-green colour blindness." PeerJ 9 (April 7, 2021): e11180. http://dx.doi.org/10.7717/peerj.11180.

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Colours and emotions are associated in languages and traditions. Some of us may convey sadness by saying feeling blue or by wearing black clothes at funerals. The first example is a conceptual experience of colour and the second example is an immediate perceptual experience of colour. To investigate whether one or the other type of experience more strongly drives colour-emotion associations, we tested 64 congenitally red-green colour-blind men and 66 non-colour-blind men. All participants associated 12 colours, presented as terms or patches, with 20 emotion concepts, and rated intensities of t

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7

Ivanov, Valery E. "Gemstone Colour Determination." Light & Engineering, no. 04-2023 (August 2023): 94–100. http://dx.doi.org/10.33383/2022-073.

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The article describes the most important component of gemstones: their colour. The subject of the article is determination of the colour of diamonds with the most frequently encountered yellow tones of different saturation, fancy-colour diamonds as well as emeralds, rubies, and sapphires. For non-ambiguous determination of the colour of gemstones and elimination of human factor, the comparison method known in photometry, i.e., comparison of the colour of a given diamond with the colour of a reference sample is used. The article describes methods of determination of the colour of yellow-hue dia

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8

Nikulshina, Tatyana N. "VERBALIZATION OF “METALLIZED” COLOUR NAMES IN THE WORLDVIEW OF ENGLISH FAIRY-TALES." Proceedings of Southern Federal University. Philology 26, no. 1 (2022): 57–65. http://dx.doi.org/10.18522/1995-0640-2022-1-57-65.

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The article singles out the semantic and linguo-cultural specificities of the use of “metallized” colour names in English fairy-tales. The nomination of the colour “metallized” continuum of the English fairy-tale discourse is carried out through the verbalization of the colour of precious metals (gold, silver), non-ferrous metals (iron) and alloys (bronze). “Metallized” colour names reveal a limited position – 12 units. Lexical units golden, silvery, bronzed are the most general designations of the metallic colours within the ancient English worldview. The color of gold – golden – dominates as

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9

Boronkay, Gábor, Dóra Hamar-Farkas, Szilvia Kisvarga, Zsuzsanna Békefi, András Neményi, and László Orlóci. "Developing a Colorimetrically Balanced, Measurement-Based Petal Colour System for Cultivated Rose (Rosa L. Cultivars) and the Resulting Colour Categories." Plants 13, no. 10 (2024): 1368. http://dx.doi.org/10.3390/plants13101368.

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There is no practical and at the same time objective colour system available for describing cultivated roses (Rosa L. cultivars). For this reason, a new colour classification system was developed which is colorimetrically balanced and appropriate for algorithmic colour identification; however, it is also suitable for field-work. The system is based on the following colorimetric criteria: (A) Each colour category is characterised by a measured petal colour in the CIE L*a*b* standard as the centroid of the category. (B) The CIEDE2000 colour differences between the adjacent centroid colours are l

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10

Nijboer, Tanja C. W., Titia Gebuis, Susan F. te Pas, and Maarten J. van der Smagt. "Interactions between colour and synaesthetic colour: An effect of simultaneous colour contrast on synaesthetic colours." Vision Research 51, no. 1 (2011): 43–47. http://dx.doi.org/10.1016/j.visres.2010.09.030.

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11

Ou, Li-Chen, M. Ronnier Luo, Andr�e Woodcock, and Angela Wright. "A study of colour emotion and colour preference. Part I: Colour emotions for single colours." Color Research & Application 29, no. 3 (2004): 232–40. http://dx.doi.org/10.1002/col.20010.

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12

Rouw, Romke, and Nicholas B. Root. "Distinct colours in the ‘synaesthetic colour palette’." Philosophical Transactions of the Royal Society B: Biological Sciences 374, no. 1787 (2019): 20190028. http://dx.doi.org/10.1098/rstb.2019.0028.

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In grapheme-colour synaesthesia, particular linguistic elements evoke particular colour sensations. Interestingly, when asked, non-synaesthetes can also associate colours to letters, and previous studies show that specific letter-to-colour associations have similar biases to those of synaesthetes. However, it is an open question whether the colours reported by synaesthetes and non-synaesthetes differ overall : is there a ‘synaesthetic colour palette’? In this study, we visualize the overall distribution in colour space of colour concurrents in grapheme-colour synaesthetes, and colour associati

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13

Upadhayay, Ranjana. "A COMPARATIVE STUDY OF COLOUR PREFERENCES TOWARDS CLOTHING AMONG YOUNG GIRLS AND BOYS." International Journal of Research -GRANTHAALAYAH 2, no. 3SE (2014): 1–5. http://dx.doi.org/10.29121/granthaalayah.v2.i3se.2014.3532.

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Abstract (sommario):

Colour, is the visual perceptual property corresponding in human beings to the names called red, green, blue, and so on and so forth. Colours are derived from the spectrum of light, interacting in the eye with the spectral sensitivities of the light receptors. Colour categories and physical specifications are related to objects or materials based on their physical properties such as light absorption, reflection, or emission.The meanings of colors vary according to cultures and environments. Each color has many aspects which may be expressed as the language of color by understanding few concept

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14

Dr., Ranjana Upadhayay. "A COMPARATIVE STUDY OF COLOUR PREFERENCES TOWARDS CLOTHING AMONG YOUNG GIRLS AND BOYS." International Journal of Research - GRANTHAALAYAH Composition of Colours, December,2014 (2017): 1–5. https://doi.org/10.5281/zenodo.887553.

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Abstract (sommario):

Colour, is the visual perceptual property corresponding in human beings to the names called red, green, blue, and so on and so forth. Colours are derived from the spectrum of light, interacting in the eye with the spectral sensitivities of the light receptors. Colour categories and physical specifications are related to objects or materials based on their physical properties such as light absorption, reflection, or emission. The meanings of colors vary according to cultures and environments. Each color has many aspects which may be expressed as the language of color by understanding few concep

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15

Gedvila, Andrius, and Jonas Sidaravičius. "INVESTIGATION INTO THE ACCURACY OF COLOURS REPRODUCED BY THE RICOH PRINTER / SPAUSDINTUVO „RICOH“ SPALVŲ REPRODUKAVIMO TIKSLUMO TYRIMAS." Mokslas - Lietuvos ateitis 6, no. 4 (2013): 583–87. http://dx.doi.org/10.3846/mla.2012.97.

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The paper investigates the reproduction accuracy of Ricoh Aficio colour 3006 printer. The study has been conducted analyzing four-color (CMYK) gradation curves – the compliance of zonal absorbance with standard references and printing stability of gradation scales. The obtained colours have been measured spectrophotometrically determining the coordinates of colours CIE L*a*b* and differences in colours ΔE. Eight printing regimes and their settings have been examined. It has been found that the printer Ricoh has inaccurately colour grading. However, the quality of colour reproduction is suffici

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16

Yeghiazaryan, Armenuhi A., Vahagn S. Muradyan, and Arsen T. Grigoryan. "ASSESSMENT AND MAPPING OF THE DIVERSITY OF COLOR SHADES OF LANDSCAPES IN SUMMER SEASON USING SATELLITE IMAGES." Proceedings of the YSU C: Geological and Geographical Sciences 56, no. 2 (258) (2022): 93–101. http://dx.doi.org/10.46991/pysu:c/2022.56.2.093.

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The landscape, bearing certain pressure from the society, simultaneously has an aesthetic potential and actively affects the emotional and psychological comfort of a person. Among the many factors affecting the aesthetic qualities of the landscape (relief, vegetation, water, etc.), colour is also separated. The color diversity of the landscapes is impossible to appreciate with only using eyes. The article presents a unique methodology for separating colour shades, which are one of the important aesthetic factors of the landscape. For the first time, an attempt was made to distinguish the color

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17

Davies, Will. "Colour Vision and Seeing Colours." British Journal for the Philosophy of Science 69, no. 3 (2018): 657–90. http://dx.doi.org/10.1093/bjps/axw026.

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18

Xiao, Kaida, M. Ronnier Luo, Changjun Li, and Guowei Hong. "Colour appearance of room colours." Color Research & Application 35, no. 4 (2010): 284–93. http://dx.doi.org/10.1002/col.20575.

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19

Liu, Yuyi, Chuanyin Liu, Qi Wang, Wei Zhou, and Xinru Zhao. "Research on Tang-Style Garden Color Characteristics and Application Strategy." Communications in Humanities Research 26, no. 1 (2024): 186–90. http://dx.doi.org/10.54254/2753-7064/26/20232052.

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Garden colour plays an important role in creating spatial atmosphere, mood and regional landscape characteristics. At present, there are more studies on the colours of the existing Jiangnan gardens, while there are fewer studies on the colours of the Tang-style gardens built since modern times. In order to further explore the colour characteristics of Tang-style gardens, based on the natural colour system, the garden colours are divided into dynamic colours and static colours, and the colour characteristics of Tang-style gardens are initially explored, so as to further excavate the colour cult

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20

Parikh, Kashyap. "Colour Symbolism - Emotional Values of Colour." Indian Journal of Applied Research 3, no. 1 (2011): 65–66. http://dx.doi.org/10.15373/2249555x/jan2013/26.

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21

Gong, Han, Luwen Yu, and Stephen Westland. "Simple Primary Colour Editing for Consumer Product Images." Color and Imaging Conference 2020, no. 28 (2020): 270–76. http://dx.doi.org/10.2352/issn.2169-2629.2020.28.43.

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We present a simple primary colour editing method for consumer product images. We show that by using colour correction and colour blending, we can automate the pain-staking colour editing task and save time for consumer colour preference researchers. To improve the colour harmony between the primary colour and its complementary colours, our algorithm also tunes the other colours in the image. A preliminary experiment has shown some promising results compared with a state-of-the-art method and human editing.

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22

Stjepić, Marta, and Sabina Bračko. "Colour Memory Analysis for Selected Associative Colours." TEKSTILEC 64, no. 3 (2021): 260–71. http://dx.doi.org/10.14502/tekstilec2021.64.260-271.

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Colours are one of the most important factors in everyday life. The exact number of existing colours is not yet fully known. Nevertheless, people are known for having poor colour memory. The ability to remember colours depends both on the characteristics of an individual and the situation in which the colour needs to be recalled. The field of colour memory (perception and memory of unusual colours) has been very poorly researched. The aim of this study was to analyse long-term colour memory for selected associative colours, comparing it with short-term colour memory. The research approach was

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23

Sakata, K. "Elementary Colour Perception in Hue Judgment." Perception 26, no. 1_suppl (1997): 341. http://dx.doi.org/10.1068/v970324.

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The ratios of psychological elementary colours perceived in chromatic colour papers with a variety of hues were measured by a paired comparison method. Stimulus sets were composed of two colour papers with hues between two of four elementary colours, but on either side of one elementary colour. Five students observed stimulus sets comprising two colour papers under approximately 1000 lux D65 illumination, and they chose the one which caused the stronger elementary colour percept. The results showed that the sum of the ratios of two elementary colours in a colour whose hue is located between th

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24

Siuda-Krzywicka, Katarzyna, Christoph Witzel, Myriam Taga, Marine Delanoe, Laurent Cohen, and Paolo Bartolomeo. "When colours split from objects: The disconnection of colour perception from colour language and colour knowledge." Cognitive Neuropsychology 37, no. 5-6 (2019): 325–39. http://dx.doi.org/10.1080/02643294.2019.1642861.

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Ryndina, Iuliia. "Color terms as a way to categorize artistic reality (based on the novel by Lion Feuchtwanger «The ugly duchess»)." Филология: научные исследования, no. 5 (May 2022): 44–52. http://dx.doi.org/10.7256/2454-0749.2022.5.38038.

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Colour terms are a significant group of lexical units of any language. The article is devoted to the identification and the description of lexical units that explicitly express colour or include implicitly transmitted semes of colour in the novel by the German writer L. Feuchtwanger «The ugly duchess». The author believes that colour terms, accumulating national-cultural stereotypes and ideological meanings of the linguistic community, reproduce fragments of reality and the artistic concept of the world in the text. Using various connotations of colour meanings, L. Feuchtwanger solves two task

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Jeong, EunYoung, and In-Ho Jeong. "Individual Differences in Colour Perception: The Role of Low-Saturated and Complementary Colours in Ambiguous Images." i-Perception 12, no. 6 (2021): 204166952110557. http://dx.doi.org/10.1177/20416695211055767.

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Individual differences in colour perception, as evidenced by the popular debate of “The Dress” picture, have garnered additional interest with the popularisation of additional, similar photographs. We investigated which colorimetric characteristics were responsible for individual differences in colour perception. All objects of the controversial photographs are composed of two representative colours, which are low in saturation and are either complementary to each other or reminiscent of complementary colours. Due to these colorimetric characteristics, we suggest that one of the two complement

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27

Sanad, Reham. "A Study of the Factors Affecting Colour Meaning and Emotional Response." New Trends and Issues Proceedings on Humanities and Social Sciences 4, no. 11 (2017): 11–22. http://dx.doi.org/10.18844/prosoc.v4i11.2844.

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Colour design research studies are concerned with identifying colour preferences and emotion elicited by colours, and a deep understanding of the aspects shaping these emotions will lead to better exploitation of colour design. This study highlights the aspects that contribute to human emotional response to colour. Hue, brightness and chroma are colour attributes used in different colour model identifying colours. Brightness and chroma in most studies affect the hue on colour emotion association. Colour context, texture and size are also discussed in terms of contribution to colour motion resp

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Kartashkova, Faina I., and Liubov E. Belyaeva. "Colour Meaning in English Literary Pieces." RUDN Journal of Language Studies, Semiotics and Semantics 13, no. 1 (2022): 201–12. http://dx.doi.org/10.22363/2313-2299-2022-13-1-201-212.

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The article deals with the colour maening and colour symbolics of a literary piece. Analysis of colour world in English fiction is aimed at determining the linguistic means of representing the individual writers idea of colour via the system of colour values. Along with it, analysis of the expression of colour sensations and their influence both on characters and on the plot development was carried out. It was shown that colour vocabulary is represented by words in their direct and figurative meanings. It was proved that language units may be represented in the form of a complex individual-aut

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Kartashkova, Faina I., and Liubov E. Belyaeva. "Colour Meaning in English Literary Pieces." RUDN Journal of Language Studies, Semiotics and Semantics 13, no. 1 (2022): 201–12. http://dx.doi.org/10.22363/2313-2299-2022-13-1-201-212.

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Abstract (sommario):

The article deals with the colour maening and colour symbolics of a literary piece. Analysis of colour world in English fiction is aimed at determining the linguistic means of representing the individual writers idea of colour via the system of colour values. Along with it, analysis of the expression of colour sensations and their influence both on characters and on the plot development was carried out. It was shown that colour vocabulary is represented by words in their direct and figurative meanings. It was proved that language units may be represented in the form of a complex individual-aut

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30

Nieves, Juan Luis, Juan Ojeda, Luis Gómez-Robledo, and Javier Romero. "Psychophysical Determination of the Relevant Colours That Describe the Colour Palette of Paintings." Journal of Imaging 7, no. 4 (2021): 72. http://dx.doi.org/10.3390/jimaging7040072.

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In an early study, the so-called “relevant colour” in a painting was heuristically introduced as a term to describe the number of colours that would stand out for an observer when just glancing at a painting. The purpose of this study is to analyse how observers determine the relevant colours by describing observers’ subjective impressions of the most representative colours in paintings and to provide a psychophysical backing for a related computational model we proposed in a previous work. This subjective impression is elicited by an efficient and optimal processing of the most representative

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Seubert, C. M., M. E. Nichols, and K. Ellwood. "A statistical method for the relative comparison of automotive paint colours using digital imaging analysis." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 225, no. 11 (2011): 2088–95. http://dx.doi.org/10.1177/2041297510393780.

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Relative colour comparisons were performed using digital imaging techniques and analysis. A statistical method was used to quantify how well a test colour matched a colour standard. Colour histogram comparisons were performed by incorporating a combination of control limits (based on prediction intervals) and threshold limits that were calculated for each curve set. Test colours were imaged and compared to colour standards by calculating the per cent match for each of the RGB curves. Colours that did not show a per cent match of 60 per cent or greater in all three colour curves were considered

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Peng, Rui, Ming Ronnier Luo, Mingkai Cao, Yuechen Zhu, Xiaoxuan Liu, and Guoxiang Liu. "Preferred skin reproduction centres for different skin groups." Color and Imaging Conference 2020, no. 28 (2020): 109–13. http://dx.doi.org/10.2352/issn.2169-2629.2020.28.16.

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Producing preferred skin colours is vital for the digital images on mobile phone manufacturers. Previous studies investigated the skin colours only in chromatic plane excluding lightness. A psychophysical experiment was conducted to determine preferred skin colour centres for different skin colour types on mobile displays in a darkened room. Ten facial images were selected for the experiment to cover different skin colour types (Caucasian, Oriental, South Asian and African). A set of 49 predetermined colour centres uniformly sampled within the skin colour ellipsoid in CIELAB colour space was u

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Golka, Maria H. "La catégorisation linguistique des couleurs: niveaux d'élémentarité des noms de couleurs français." Cognitive Studies | Études cognitives, no. 14 (September 4, 2014): 131–47. http://dx.doi.org/10.11649/cs.2014.012.

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Linguistic categorisation of colours: relative basicness of French colour termsCategorisation is one of the basic cognitive processes. Because of the continuous character of the colour spectrum, colour terms constitute an interesting material to study linguistic categorisation. The first part of this article offers a review of research on the linguistic categorisation of colours, especially on basic colour terms and prototypes. In the second part, the results of an empirical study on the basicness of French colour terms will be presented. The results suggest that colour terms are categorised a

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Arbab, Shabnam, Jonathan A. Brindle, Barbara S. Matusiak, and Christian A. Klöckner. "Categorisation of Colour Terms Using New Validation Tools: A Case Study and Implications." i-Perception 9, no. 2 (2018): 204166951876004. http://dx.doi.org/10.1177/2041669518760043.

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This article elaborates on the results of a field experiment conducted among speakers of the Chakali language, spoken in northern Ghana. In the original study, the Color-aid Corporation Chart was used to perform the focal task in which consultants were asked to point at a single colour tile on the chart. However, data from the focal task could not be analysed since the Color-aid tiles had not yet been converted into numerical values set forth by the Commission internationale de l’éclairage (CIE). In this study, the full set of 314 Color-aid tiles were measured for chromaticity and converted in

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Zhbanova, Vera L. "Evaluation And Selection Of Colour Spaces For Digital Systems." Volume 28, Number 6, 2020, no. 03-2020 (December 2020): 86–94. http://dx.doi.org/10.33383/2020-024.

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The research examined the changing of colour difference by the control colours depending on the choice of colour space when working with matrix photo detector. The spectral characteristics of photo detectors from different manufacturers noticeably differ from each other and from the addition the difference in colour quality between different digital devices. A software method for studying the colour rendition of the image obtained by digital devices based on the selection of an individual colour space for each matrix photo detector is proposed. To analyze and evaluate the capabilities of the s

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Johnson, Addie, Marieke Jepma, and Ritske De Jong. "Colours Sometimes Count: Awareness and Bidirectionality in Grapheme–Colour Synaesthesia." Quarterly Journal of Experimental Psychology 60, no. 10 (2007): 1406–22. http://dx.doi.org/10.1080/17470210601063597.

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Three experiments were conducted with 10 grapheme–colour synaesthetes and 10 matched controls to investigate (a) whether awareness of the inducer grapheme is necessary for synaesthetic colour induction and (b) whether grapheme–colour synaesthesia may be bidirectional in the sense that not only do graphemes induce colours, but that colours influence the processing of graphemes. Using attentional blink and Stroop paradigms with digit targets, we found that some synaesthetes did report “seeing” synaesthetic colours even when they were not able to report the inducing digit. Moreover, congruency ef

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Gaikwad, Asha. "COLOUR SPECTRUM." International Journal of Research -GRANTHAALAYAH 7, no. 11 (2019): 80–82. http://dx.doi.org/10.29121/granthaalayah.v7.i11.2019.3704.

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Colour is one of the most important elements in our life. Colour can attract our attention and change our mood. When white light dispersed by prism or a diffraction grating the colours are produce. There is a continuous change in wavelength from red to violet. Seven colours are usually distinguished – Violet, Indigo, Blue, Green Yellow, Orange and Red. It is called spectrum. A rainbow shows the colours of the spectrum. It is a range of Light waves or radio waves within particular frequencies.

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Dr., Asha Gaikwad. "COLOUR SPECTRUM." International Journal of Research - Granthaalayah 7, no. 11(SE) (2019): 80–82. https://doi.org/10.5281/zenodo.3585060.

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Abstract (sommario):

Colour is one of the most important elements in our life. Colour can attract our attention and change our mood. When white light dispersed by prism or a diffraction grating the colours are produce. There is a continuous change in wavelength from red to violet. Seven colours are usually distinguished – Violet, Indigo, Blue, Green Yellow, Orange and Red. It is called spectrum. A rainbow shows the colours of the spectrum. It is a range of Light waves or radio waves within particular frequencies.

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39

Mausfeld, Rainer, and Reinhard Niederée. "An Inquiry into Relational Concepts of Colour, Based on Incremental Principles of Colour Coding for Minimal Relational Stimuli." Perception 22, no. 4 (1993): 427–62. http://dx.doi.org/10.1068/p220427.

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Centre – surround stimuli evoke colour appearances (resembling surface colours) which cannot be produced by a single homogeneous spot of light alone (eg brown or grey). Although this seems of great impact to a general theory of colour (including ‘colour constancy’), the psychophysics of these ‘minimal relational stimuli’ is still less well understood than often assumed. On the basis of empirical as well as theoretical observations concerning centre– surround-type stimuli we introduce a relational model of colour coding. At the core of this model is the concept of a three-dimensional linear inc

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40

Norazila, Othman, Zarhamdy Md. Zain Mohd, Shah Ishak Iskandar, Rahim Abu Bakar Abdul, Ab Wahid Mastura, and Mohamad Maziah. "A colour recognition device for the visually disabled people." Indonesian Journal of Electrical Engineering and Computer Science (IJEECS) 17, no. 3 (2020): 1322–29. https://doi.org/10.11591/ijeecs.v17.i3.pp1322-1329.

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Visually disabled people rely on the sense of touch and sense of hearing to help them recognise anything in their everyday life. Colours, however, is also important in giving information about things such as the colour of cash note (blue, green, red, orange and purple), the colour of spices (yellow turmeric, red chilli, green chilli) and colour of cloth. Without a sense of visual, they are not able to recognise colour and perceive the beauty of colour. This study was conducted to develop a colour recognizer for visually disabled people. Colour recogniser used the colour sensor to sense the col

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41

Safo-Ankama, Kweku, and Naa Omai Sawyerr. "Analysis of Colours of Effutu Festival Costumes for Application in Contemporary Textile Design." Humanities & Language: International Journal of Linguistics, Humanities, and Education 1, no. 5 (2024): 324–39. https://doi.org/10.32734/934zxs96.

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The Aboakyir festival costumes present a colourful ambience and a panoply of varied colour schemes. The different colour ways and schemes presented by the parade of costumes are always a source of colour inspiration and creative visual sensibilities. The paper attempts to analyze the colours of Effutu festival costumes and their application in contemporary textile design. The study presents inspirational colour palettes on the basis of inspiration from the varied colour schemes presented and applied to contemporary textile designs. Ten (10) colour palettes are generated from different location

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42

Shrivastva, Kumkum, and Abhilasha Jaiswal. "USAGE (IMPORTANCE) OF COLOUR IN GRAPHIC DESIGN." International Journal of Research -GRANTHAALAYAH 2, no. 3SE (2014): 1–3. http://dx.doi.org/10.29121/granthaalayah.v2.i3se.2014.3528.

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Abstract (sommario):

Colour is a perception of light by human brain. In simple words when a ray of light strikes an object, the object absorbs a colour and reflects remaining colours. Human brain identifies the missing colour and perceives the colour of the object as that of the missing colour. This phenomenon is widely known as perception of colour."Colour is life, for a world without colour seems dead. As a flame produces light, light produces colour. As intonation lends colour to the spoken word, colour lends spiritually realized sound to form." - Johannes Itten.1

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43

Olsson, Peter, Robin D. Johnsson, James J. Foster, John D. Kirwan, Olle Lind, and Almut Kelber. "Chicken colour discrimination depends on background colour." Journal of Experimental Biology 223, no. 24 (2020): jeb209429. http://dx.doi.org/10.1242/jeb.209429.

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ABSTRACTHow well can a bird discriminate between two red berries on a green background? The absolute threshold of colour discrimination is set by photoreceptor noise, but animals do not perform at this threshold; their performance can depend on additional factors. In humans and zebra finches, discrimination thresholds for colour stimuli depend on background colour, and thus the adaptive state of the visual system. We have tested how well chickens can discriminate shades of orange or green presented on orange or green backgrounds. Chickens discriminated slightly smaller colour differences betwe

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Reveles Jensen, Kristian H., Sofie Trolle Pedersen, Mette Vinther Hansen, and Martin Balslev Jørgensen. "Shocking colours - ECT temporarily improves colour perception in a colour-blind patient." Brain Stimulation 13, no. 4 (2020): 957–58. http://dx.doi.org/10.1016/j.brs.2020.04.018.

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45

Alum, Benedict Nnachi. "Advances in Color Chemistry and their Impact on the Paint Industry." INOSR APPLIED SCIENCES 12, no. 2 (2024): 43–50. http://dx.doi.org/10.59298/inosras/2024/12.2.435000.

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Abstract (sommario):

The broad topic of colour chemistry covers the manufacturing, applications, and invention of pigments and dyes, which are essential to the paint and coating, textile, and electronics industries, among others. Recent advances in colour chemistry have had a significant impact on the paint business, particularly with regard to coating sustainability, usefulness, and durability. This review sought to address how improved pigments, green chemistry solutions, and new technology could revolutionise the paint business as a result of recent advances in colour chemistry. The use of nanotechnology in the

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46

Guðmundsdóttir Beck, Þórhalla, and Matthew James Whelpton. "Samspil máls og merkingar. Um litaheiti í íslensku táknmáli." Orð og tunga 21 (August 15, 2019): 75–100. http://dx.doi.org/10.33112/ordogtunga.21.5.

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Abstract (sommario):

Brent Berlin and Paul Kay brought a sea change in semantic studies of colour terms when they published their book Basic Color Terms in 1969. Up to that point the dominant view was that each language represented a unique conceptual organisation of the world, a view supported by the fact that the colour spectrum is a continuum which provides not obvious breaks for the purposes of naming. Despite the many criticisms of their work which have followed, their methodology has proven extremely influential and been widely adopted. The project Evolution of Semantic Systems, 2011–2012, adopted their meth

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Shepherd, AJ. "Colour Vision in Migraine: Selective Deficits for S-Cone Discriminations." Cephalalgia 25, no. 6 (2005): 412–23. http://dx.doi.org/10.1111/j.1468-2982.2004.00831.x.

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Three studies are reported that explore colour perception in migraine. In each, sensitivity for colours detected selectively by the S-cones and the L- and M-cones was assessed separately. The first study assessed the discrimination of small colour differences using the Farnsworth-Munsell 100-hue test. The second assessed threshold detection for purple, yellow, red and green targets on five equiluminant background colours. The third examined supra-threshold colour scaling using two colour series, purple-yellow and red-green. Each study indicated that differences in colour perception between mig

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Hernández, Alejandra Díaz, Ana María Martín Casado, Miguel Gómez-Polo, Alicia Celemín Viñuela, and Cristina Gómez-Polo. "Degree of Standardisation in Ceramic Gingival Systems." Materials 16, no. 20 (2023): 6710. http://dx.doi.org/10.3390/ma16206710.

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Abstract (sommario):

No gingival shade guide exists that can be used as a ‘gold standard’ in gingival shade selection. This research, therefore, aimed to determine whether comparable results in subjective gingival shade selection can be achieved using basic gingival colours produced by distinct manufacturers. It also aimed to explore how coverage of the colour space is affected by mixing these basic colours to create additional shades. To achieve these objectives, the basic gingival colours of three ceramic systems (Heraceram, Kulzer, Madrid, Spain; Vita VM9, Vita Zahnfabrik, Bad Säckingen, Germany; IPS Style, Ivo

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49

S.G.Gayathri. "Demosaicking of Color Image Using Residual Interpolation." Journal of VLSI Design and Signal Processing 4, no. 3 (2018): 1–10. https://doi.org/10.5281/zenodo.1622997.

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Abstract (sommario):

Demosaicking of color image by residual interpolation aims at reconstructing a full color image from the unfinished color sample output of a picture device. Because of the high value and maintenance, most of the colour device cameras are organized with CFA (Color Filter Array), it produces the mosaicked image. The colour filter array accommodates 3 primary colours red inexperienced and blue and it samples just one color element at every picture element location. The method of estimating the opposite 2 missing color parts at every picture element location is understood as demosaicking. The plan

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50

Valberg, Arne. "Colour vision: From sensation to science (in Norwegian)." Scandinavian Journal of Optometry and Visual Science 3, no. 1 (2022): 1–6. http://dx.doi.org/10.5384/sjovs.vol3i1p1.

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Abstract (sommario):

Throughout history there have been different approaches to pursuing a better understanding of colour and colour vision, depending on the phenomena one wanted to explain. For instance, although seemingly irreconcilable, the opponent-colour theory of Hering (with its yellow-blue and red-green chromatic pairs) and the three-colour theory of Young-Helmholtz (with red, green, and violet as mixture primaries) did in fact illuminate different aspects of colour vision. Thomas Young and Hermann von Helmholtz set out to explain the qualities of colours, but with the help of James C. Maxwell this theory

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