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1. Use of colour transformation and the geodesic method for road centreline extraction from VHR satellite images

Author:
Miao, Zelang; Gao, Lipeng; He, Yueguang; Wu, Lixin; Shi, Wenzhong; Samat, Alim; Liu, Sicong; Li, Jia
Source:
International journal of remote sensing 2019 v.40 no.10 pp. 4043-4058
ISSN:
1366-5901
Subject:
color,   etc   ; remote sensing; roads;     Show all 3 Subjects
Abstract:
... Seed point-based road extraction methods are vital for extracting road networks from satellite images. Despite its effectiveness, roads in very high-resolution (VHR) satellite images are complicated, such as road occlusion and material change. To tackle this issue, this paper proposes to use the colour space transformation and geodesic method. First, the test image is converted from Red-Green-Blue ...
DOI:
10.1080/01431161.2018.1558374

2. Colormapping resources and strategies for organized intuitive environmental visualization

Author:
Samsel, Francesca; Wolfram, Phillip; Bares, Annie; Turton, Terece L.; Bujack, Roxana
Source:
Environmental earth sciences 2019 v.78 no.9 pp. 269
ISSN:
1866-6280
Subject:
color,   etc   ; environmental science; vegetation;     Show all 3 Subjects
Abstract:
... Visualizations benefit from the use of intuitive organized color application, enabling a clearer understanding and communication. In this paper, we apply the concept of semantic color association to the generation of thematic colormaps for the environmental sciences in combination with principals of artistic color theory to expand feature resolution and create visual hierarchies within a visualiza ...
DOI:
10.1007/s12665-019-8237-9

3. Perceptual learning after test-stimulus exposure in humans

Author:
Sanjuan, Mª del Carmen; Nelson, J.B.
Source:
Behavioural processes 2019 v.162 pp. 1-6
ISSN:
0376-6357
Subject:
color,   etc   ; humans; learning; rats;     Show all 4 Subjects
Abstract:
... Exposure to a to-be-tested stimulus produces a reduction in generalization to that stimulus from another similar conditioned stimulus (e.g. Bennett et al., 1994; Symonds and Hall, 1997). Generally, this effect has been interpreted as the result of a loss of effectiveness of the common elements of the stimulus to be conditioned (e.g., latent inhibition). However, Sanjuan et al. (2006) questioned th ...
DOI:
10.1016/j.beproc.2019.01.005

4. Electrochromism of fast photochromic radical complexes forming light-unresponsive stable colored radical cation

Author:
Yamamoto, Katsuya; Gomita, Isshu; Okajima, Hajime; Sakamoto, Akira; Mutoh, Katsuya; Abe, Jiro
Source:
Chemical communications 2019 v.55 no.34 pp. 4917-4920
ISSN:
1364-548X
Subject:
color,   etc   ; cations; imidazoles; oxidation;     Show all 4 Subjects
Abstract:
... We demonstrated the electrochromism of photochromic radical complexes containing triaryl imidazole: fast photoswitchable pentaarylbiimidazole (PABI) and the phenoxyl–imidazolyl radical complex (PIC). Cyclic voltammetry and spectroelectrochemistry revealed that PABI and PIC generate the highly stable radical cation by one-electron oxidation accompanied by a color change from colorless to green. The ...
DOI:
10.1039/c9cc00455f

5. Qualitative colorimetric analysis of a Ir(iii)/Eu(iii) dyad in the presence of chemical warfare agents and simulants on a paper matrix

Author:
Dennison, Genevieve H.; Curty, Christophe; Metherell, Alexander J.; Micich, Eva; Zaugg, Andreas; Ward, Michael D.
Source:
RSC advances 2019 v.9 no.14 pp. 7615-7619
ISSN:
2046-2069
Subject:
color,   etc   ; absorption; colorimetry; luminescence;     Show all 4 Subjects
Abstract:
... The addition of G- and V-series organophosphorus chemical warfare agents and simulants to a paper-based assay of a dual-luminescent Ir(iii)/Eu(iii) dyad generated different emissive responses between the classes and compound types. The emission responses are complex and based not only on altering the balance between red Eu(iii)-based and blue Ir(iii)-based luminescent components, but also incorpor ...
DOI:
10.1039/c9ra00824a

6. Hierarchical combination design of shaded-weave database for digital jacquard fabric

Author:
Zhang, Aidan; Zhou, Jiu
Source:
The journal of the Textile Institute 2019 v.110 no.3 pp. 405-411
ISSN:
1754-2340
Subject:
color,   etc   ; databases; fabrics; weaving;     Show all 4 Subjects
Abstract:
... Design methods for digital jacquard fabrics that employ equivalent increases or decreases in the number of weaving points in shaded-weave databases cannot display images with differing lightness effects. In this study, a design method for weave databases was proposed with a hierarchical combination based on the uniform segmentation of fabric lightness effects. A 16-end three-step sateen was used a ...
DOI:
10.1080/00405000.2018.1481728

7. Pitfalls in the chemistry of cellulosic key chromophores

Author:
Hettegger, Hubert; Amer, Hassan; Zwirchmayr, Nele S.; Bacher, Markus; Hosoya, Takashi; Potthast, Antje; Rosenau, Thomas
Source:
Cellulose 2019 v.26 no.1 pp. 185-204
ISSN:
0969-0239
Subject:
color,   etc   ; cellulose; reaction mechanisms;     Show all 3 Subjects
Abstract:
... The chemistry of cellulosic key chromophores is challenging because of the usually very low concentration of the colored compounds in real-world cellulosic matrices. It offers many surprises and positive outcomes; unfortunately there are also pitfalls and disappointments. This report discusses eight examples or surprising chemistry out of the realm of cellulosic key chromophores. The reactions hav ...
DOI:
10.1007/s10570-018-2131-6

8. Promoting healthy drink choices at school by means of assortment changes and traffic light coding: A field study

Author:
Stamos, Angelos; Lange, Florian; Dewitte, Siegfried
Source:
Food quality and preference 2019 v.71 pp. 415-421
ISSN:
0950-3293
Subject:
color; color sorting,   etc   ; adolescents; beverages; healthy diet; market share; schools;     Show all 7 Subjects
Abstract:
... Although there is widespread agreement about the need to reduce teenagers’ consumption of sugar-sweetened beverages, banning these drinks from the school environment is not always feasible. In this paper, we tested whether increasing the assortment of healthier alternatives and clearly labelling them as healthy by means of traffic light coding qualifies as an alternative approach to reduce the con ...
DOI:
10.1016/j.foodqual.2018.08.016

9. Ellipsoidal Artificial Melanin Particles as Building Blocks for Biomimetic Structural Coloration

Author:
Kohri, Michinari; Tamai, Yuki; Kawamura, Ayaka; Jido, Keita; Yamamoto, Mikiya; Taniguchi, Tatsuo; Kishikawa, Keiki; Fujii, Syuji; Teramoto, Naozumi; Ishii, Haruyuki; Nagao, Daisuke
Source:
Langmuir 2019 v.35 no.16 pp. 5574-5580
ISSN:
1520-5827
Subject:
color,   etc   ; anisotropy; biomimetics; melanin; polystyrenes;     Show all 5 Subjects
Abstract:
... Inspired by the structural coloration of anisotropic materials in nature, we demonstrate the preparation of structural color materials by the assembly of anisotropic particles. Spherical artificial melanin particles consisting of a polystyrene core and polydopamine shell were stretched asymmetrically to form uniform-sized ellipsoidal particles with different aspect ratios. The aspect ratio and ass ...
DOI:
10.1021/acs.langmuir.9b00400

10. Do children prefer colored plates?

Author:
Brunk, Lise; Møller, Per
Source:
Food quality and preference 2019 v.73 pp. 65-74
ISSN:
0950-3293
Subject:
color,   etc   ; adults; children; foods; hunger;     Show all 5 Subjects
Abstract:
... There are indications in the literature that extrinsic parameters, such as the color of the plate, might be important for people’s appreciation of a meal. Here we compared the preferences of two groups of differently aged children with those of adults.Participants rank-ordered images of 4 familiar dishes presented on six plates of different colors (achromatic: black, white; chromatic: yellow, gree ...
DOI:
10.1016/j.foodqual.2018.12.011

11. Colour and size influences plastic microbead underestimation, regardless of sediment grain size

Author:
Nel, Holly A.; Dalu, Tatenda; Wasserman, Ryan J.; Hean, Jeffrey W.
Source:
The Science of the total environment 2019 v.655 pp. 567-570
ISSN:
0048-9697
Subject:
color,   etc   ; microbeads; microplastics; probability; sediments;     Show all 5 Subjects
Abstract:
... The quantification of microplastics in environmental samples often requires an observer to determine whether a particle is plastic or non-plastic, prior to further verification procedures. This implies that inconspicuous microplastics with a low natural detection may be underestimated. The present study aimed at assessing this underestimation, looking at how colour (white, green and blue), size (l ...
DOI:
10.1016/j.scitotenv.2018.11.261

12. A segmentation method of bagged green apple image

Author:
Lv, Jidong; Wang, Fan; Xu, Liming; Ma, Zhenghua; Yang, Biao
Source:
Scientia horticulturae 2019 v.246 pp. 411-417
ISSN:
0304-4238
Subject:
color,   etc   ; algorithms; apples; fruits; leaves;     Show all 5 Subjects
Abstract:
... Based on the own characteristics of bagged green apple image, the work designed an image segmentation method of bagged green apples which was combined after extraction of the normal light regions and highlighted regions of fruits. The contrast limited adaptive histogram equalization (CLAHE) algorithm was deepened fruit green region and improve edge definition in image, and then the R-B color diffe ...
DOI:
10.1016/j.scienta.2018.11.030

13. Doping as a Strategy to Tune Color of 2D Colloidal Nanoplatelets

Author:
Dufour, Marion; Izquierdo, Eva; Livache, Clément; Martinez, Bertille; Silly, Mathieu G.; Pons, Thomas; Lhuillier, Emmanuel; Delerue, Christophe; Ithurria, Sandrine
Source:
ACS applied materials & interfaces 2019 v.11 no.10 pp. 10128-10134
ISSN:
1944-8252
Subject:
color,   etc   ; nanocrystals; photoluminescence; silver; spectroscopy;     Show all 5 Subjects
Abstract:
... Among colloidal nanocrystals, 2D nanoplatelets (NPLs) made of II-VI compounds appear as a special class of emitters with an especially narrow photoluminescence signal. However, the PL signal in the case of NPLs is only tunable by a discrete step. Here, we demonstrate that doping is a viable path to finely tune the color of these NPLs from green to red, making them extremely interesting as phosphor ...
DOI:
10.1021/acsami.8b18650

14. A comparison of the Nix Colour Sensor Pro™ and HunterLab MiniScan™ colorimetric instruments when assessing aged beef colour stability over 72 h display

Author:
Holman, Benjamin W.B.; Hopkins, David L.
Source:
Meat science 2019 v.147 pp. 162-165
ISSN:
0309-1740
Subject:
color,   etc   ; beef; colorimetry; longissimus muscle;     Show all 4 Subjects
Abstract:
... We compared the capacity for the Nix Colour Sensor Pro™ (NIX) and HunterLab MiniScan™ (HUNTER) to detect colour variation using aged (0, 3 and 5 weeks) and then displayed (0, 1, 2 and 3 d) beef M. longissimus lumborum samples (n = 8). NIX L* and hue values were found to be respectively higher and lower than for the HUNTER. No significant interactions between instrument and display or ageing period ...
DOI:
10.1016/j.meatsci.2018.09.009

15. Asymmetric iris heterochromia in birds: the dark crescent of buttonquails

Author:
Gutiérrez-Expósito, Carlos
Source:
Journal of ornithology 2019 v.160 no.1 pp. 281-285
ISSN:
2193-7192
Subject:
color,   etc   ; birds; eyes; natural selection;     Show all 4 Subjects
Abstract:
... I describe for the first time the unique coloured pattern of the iris of buttonquails (Turnicidae). This unique pattern is due to the presence of a dark-brown crescent in the iris below the pupil, whose form and extent varies in response to light conditions. This dark crescent is present in the eyes of all individuals of Turnix species at every life stage, a consistency that has not been previousl ...
DOI:
10.1007/s10336-018-1606-4

16. Single-point calibration and standard addition assays on calibrant-loaded paper-based analytical devices

Author:
Giannoulas, George; Tsogas, George Z.; Giokas, Dimosthenis L.
Source:
Talanta 2019 v.201 pp. 149-155
ISSN:
0039-9140
Subject:
color,   etc   ; amino acids; colorimetry; iron; nickel; paper;     Show all 6 Subjects
Abstract:
... This article describes a new, simplified approach for performing quantitative colorimetric assays on paper-based analytical devices that uses calibrant-loaded paper devices to perform external calibration and standard addition calibration using one calibration point. Calibrant-loaded devices consist of sensing areas pre-loaded with a colored product which is produced from the reaction of a standar ...
DOI:
10.1016/j.talanta.2019.04.008

17. Cup colour influences consumers’ expectations and experience on tasting specialty coffee

Author:
Carvalho, Fabiana M.; Spence, Charles
Source:
Food quality and preference 2019 v.75 pp. 157-169
ISSN:
0950-3293
Subject:
color,   etc   ; acidity; drinking; hedonic scales; sweetness; taste;     Show all 6 Subjects
Abstract:
... The present study was designed to investigate the effect of the colour of the cup on sensory and hedonic judgments of specialty coffee by consumers. Altogether, 457 participants took part in one of three experiments. Crossmodal correspondences between the colour of the cup (i.e., an extrinsic cue) and the taste profile of the coffee served (i.e., the contents) were manipulated. Congruent and incon ...
DOI:
10.1016/j.foodqual.2019.03.001

18. The effect of odor and color on chemical cooling

Author:
Pellegrino, Robert; Luckett, Curtis R.
Source:
Food quality and preference 2019 v.75 pp. 118-123
ISSN:
0950-3293
Subject:
color,   etc   ; cooling; flavor; odors; smell; sweets; taste;     Show all 7 Subjects
Abstract:
... Chemesthesis, along with taste and olfaction, is a primary component of flavor that engages the trigeminal system through specific chemical binding. For instance, many gums or confectionaries incorporate chemical cooling agents, such as Wilkinson Sword (WS) compounds, to create the sensation of coldness. The current study was designed to evaluate crossmodal associations of color and aroma with the ...
DOI:
10.1016/j.foodqual.2019.03.002

19. Colour profile analysis of Port wines by various instrumental and visual methods

Author:
Soares‐da‐Silva, Francisco AG; Campos, Francisco M; Ferreira, Manuel L; Ribeiro, Natália; Amaral, Bento; Simões, Tomás; Silva, Cristina LM
Source:
Journal of the science of food and agriculture 2019 v.99 no.7 pp. 3563-3571
ISSN:
0022-5142
Subject:
color,   etc   ; colorimetry; port wines; sensory evaluation; spectroscopy;     Show all 5 Subjects
Abstract:
... BACKGROUND: Wine colour is an important quality parameter, being the first sensorial attribute evaluated during wine tasting. The perception of wine colour can be different depending on many factors, including the depth of the sample under observation. The main objectives of the present study were to measure the colour of Port wines using CIE L*, a*, b* parameters at different depths with various ...
DOI:
10.1002/jsfa.9577

20. Natural color representation of Sentinel-2 data

Author:
Sovdat, Blaž; Kadunc, Miha; Batič, Matej; Milčinski, Grega
Source:
Remote sensing of environment 2019 v.225 pp. 392-402
ISSN:
0034-4257
Subject:
color,   etc   ; algorithms; multispectral imagery; remote sensing;     Show all 4 Subjects
Abstract:
... The true color composite is a widely used Earth observation product for displaying satellite imagery. As it is often used in communication with non-expert audiences in various media, it is desirable that such a product approximates the color perceived by the human eye. Additionally, as the Sentinel-2 mission with its high resolution multispectral imagery and short revisit times is delivering unpre ...
DOI:
10.1016/j.rse.2019.01.036