Relevant bibliographies by topics / CIELab color parameters

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'CIELab color parameters'

Author: Grafiati
Published: 4 June 2021
Last updated: 11 February 2022

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Journal articles on the topic "CIELab color parameters"

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Barutcigil, Çağatay, Osman Tolga Harorli, Yusuf Ziya Bayindir, and Funda Bayindir. "Effect of Water Storage and Additional Polymerization on the Color Parameters of Flowable Resin Composites." Journal of Contemporary Dental Practice 14, no. 6 (2013): 1109–14. http://dx.doi.org/10.5005/jp-journals-10024-1460.

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ABSTRACT Aims Tooth colored dental restorative materials should maintain their chromatic properties throughout their service period. The aim of this study was to examine the possible color changes of flowable resin composite filling materials following water storage. The effect of additional light curing on color stability of restorative materials was also investigated. Materials and methods Six brands of light-cured flowable resin composites of the same shade (A3) were prepared from two groups generated by curing for 20 or 60 seconds. The initial color parameters of the flowable composite sam
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Mahdiyanti, Siti Hanifah, Tetsuya Inagaki, and Satoru Tsuchikawa. "Analysis of wood thermal degradation using 2D correlation of near infrared and visible-light spectroscopy." Journal of Near Infrared Spectroscopy 27, no. 5 (2019): 354–69. http://dx.doi.org/10.1177/0967033519863878.

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Wood changes its properties, especially color, as a result of thermal degradation. In this study, change in wood properties due to thermal degradation have been studied using the nondestructive test methods of near infrared spectroscopy, CIELAB color measurement, visible-light spectroscopy, and Arrhenius time–temperature superposition. Arrhenius time–temperature superposition allowed analysis of near infrared and visible-light spectra, and color parameters to predict thermal degradation and color change of wood at 120–180℃ for 6 min to nine months duration. Two-dimensional correlation spectros
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Rahaman, G. M. Atiqur, and Md Zahidul Islam. "Color transform analysis for microscale image segmentation to study halftone model parameters." Open Computer Science 6, no. 1 (2016): 148–67. http://dx.doi.org/10.1515/comp-2016-0013.

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AbstractThis article presents a comprehensive study of 30 color transforms to accurately segment images of halftone prints and thus calculating the parameters of a color prediction model. The transforms are evaluated combining three metrics: the model accuracy,Otsu’s discriminant, and correlation coefficients of histograms. Hierarchical cluster analysis is applied to determine the thresholds to segment the image histogram into paper, ink and mixed area. Among the 30 different transforms discussed in this article, 21 channels are of 7 color space models (RGB, CMYK, CIELAB, HSV, YIQ, YCbCr, and
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Sánchez-Marañón, M., G. Delgado, M. Melgosa, E. Hita, and R. Delgado. "CIELAB COLOR PARAMETERS AND THEIR RELATIONSHIP TO SOIL CHARACTERISTICS IN MEDITERRANEAN RED SOILS." Soil Science 162, no. 11 (1997): 833–42. http://dx.doi.org/10.1097/00010694-199711000-00007.

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Nguyen, Phung Kim, Thuy Thi Thanh Thang, and Quyen Thi Tu Trinh. "STUDY ON THE QUALITY PARAMETERS OF POND APPLE JAM (Annona glabra L.)." Scientific Journal of Tra Vinh University 1, no. 34 (2019): 69–75. http://dx.doi.org/10.35382/18594816.1.34.2019.193.

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The aim of the study was to identify factors that could affect the quality of pond apple (Annona glabra L.) jam.Various quality parameters were investigated with three replica groups for each: added fruit flesh compared to juice/water solution (30%; 35%; 40%; 45%; 50%), soluble solid concentration of juice (45; 50; 55) and varying pH levels (3.0; 3.2; 3.4). The results showed that when the added fruit flesh to juice/water was 40%, the product produced a high-value bright yellow, corresponding to CIELAB color space values, L∗, a∗, b∗, 12.45; 0.58; 8.56 and the jam product gained the highest sco
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Jordão, A. M., F. Costa, L. Fontes, et al. "Impact of the contact time of different oak wood chips on red wine phenolic composition evolution after bottling." BIO Web of Conferences 15 (2019): 02019. http://dx.doi.org/10.1051/bioconf/20191502019.

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The main object of the present work was to evaluate the potential influence of the oak wood chips-wines contact time (30 and 60 days) on the evolution of the red wine phenolic composition during storage in bottle. Thus, global phenolic composition, color parameters, and individual anthocyanins of bottled red wines that had previously been in contact with oak wood chips during different times were analyzed. The results obtained demonstrates that in general, after 6 months of bottle storage, red wines with a previous oak wood chips contact time showed a more evident decrease on anthocyanin conte
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Srivaro, Suthon, Sataporn Jantawee, Jaipet Tomad, Worakan Hosakun, and Zoltán Pásztory. "Color variance of dry coconut wood and its relationship with the density." BioResources 15, no. 3 (2020): 7074–78. http://dx.doi.org/10.15376/biores.15.3.7074-7078.

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The color variance of dry coconut wood and its relationship with the wood density was explored. Coconut trunks with two different ages of 30 and 60 years old were selected for the experiment. Wood color was measured by the CIE L*a*b* or CIELAB color system on both the transverse (longitudinal-tangential plane) and cross (tangential-radial plane) sections. The results showed that all color parameters (L*, a*, b*) tended to decrease with increasing wood density for both sections in which the value on transverse section was slightly higher. At a given density, the color value of the older trunk w
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Brokos, Ioannis, Minos Stavridakis, Panos Lagouvardos, and Ivo Krejci. "Fluorescence intensities of composite resins on photo images." Odontology 109, no. 3 (2021): 615–24. http://dx.doi.org/10.1007/s10266-020-00583-z.

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AbstractRecording fluorescence using flash photography, may help reduce time of capture and apply effectively in clinical practice. To test methods for visualizing composite resins fluorescence by direct digital photography. Sixty-four specimen discs (1.5 × 10 mm) were prepared from 8 different composite resin brands. Their CIELAB color coordinates (L*, a*, b*) and fluorescence were measured using a portable colorimeter and a fluorescence spectrophotometer. The mean of three measurements was recorded and then specimens were photographed by a DSLR camera with two different filters (365 nm and 4
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Grazenaite, Egle, Edita Garskaite, Zivile Stankeviciute, Eva Raudonyte-Svirbutaviciene, Aleksej Zarkov, and Aivaras Kareiva. "Ga-Substituted Cobalt-Chromium Spinels as Ceramic Pigments Produced by Sol–Gel Synthesis." Crystals 10, no. 12 (2020): 1078. http://dx.doi.org/10.3390/cryst10121078.

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For the first time to the best of our knowledge, cobalt-chromium spinels CoCr2−xGaxO4 with different amounts of gallium (x = 0–2 with a step of 0.5) were synthesized via the aqueous sol–gel route as ceramic pigments. The phase composition, crystallite size, morphological features, and color parameters of new compositions and their corresponding ceramic glazes were investigated using XRD, CIELab, SEM, and optical microscopy. It was demonstrated that the formation of single-phase CoCr2−xGaxO4 samples was problematic. Full substitution of Cr3+ by Ga3+ ion in the spinel resulted in the formation o
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Odilon, Natália Nascimento, Rafaela Silva Oliveira, Max José Pimenta Lima, and Elisângela de Jesus Campos. "The influence of the CIELAB parameters on the perception of color after the use of whitening toothpastes." Brazilian Journal of Oral Sciences 21 (September 27, 2021): e222812. http://dx.doi.org/10.20396/bjos.v21i00.8662812.

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Aim: To evaluate the influence of the parameters L* a* b* on the variation of the color of bovine tooth enamel submitted to artificial darkening, after simulated brushing, with whitening toothpastes containing blue covarine. Methods: To undertake this study in vitro, 60 specimens (SP) were divided into 6 groups (n=10): control group (CGwater) and 5 test groups (GT1-Colgate Total 12, GT2-Oral-B 3D White Perfection, GT3- Colgate Luminous Instant White, GT4-CloseUp White Diamond Attraction, GT5-Sorriso Xtreme White). The specimens were darkened with coffee and submitted to simulated brushing for
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Dissertations / Theses on the topic "CIELab color parameters"

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Alves, Luiz Antonio. "Propriedades óticas de filmes de nitreto de titânio com adição de nióbio depositados por triodo-magnetron sputtering." Universidade do Estado de Santa Catarina, 2014. http://tede.udesc.br/handle/handle/619.

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Made available in DSpace on 2016-12-08T15:56:18Z (GMT). No. of bitstreams: 1 Luiz Antonio Alves.pdf: 4887074 bytes, checksum: 2921556dad24ae9311fe651e5a0ccdcf (MD5) Previous issue date: 2014-07-14<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>Titanium nitride (TiN) films with niobium (Nb) addition (TiN[Nb], 0,01 < Nb/Ti < 0,15) were obtained by sputter deposition in a triode magnetron sputtering system from a mosaic target of titanium with niobium inserts at the erosion zone. The effects of Nb/Ti in surface morphology were analyzed by atomic force and confocal microscop
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Cal, João José Pereira da. "A cor dos vinhos rosados do Alentejo." Master's thesis, Universidade de Évora, 2017. http://hdl.handle.net/10174/22648.

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Os vinhos rosados apresentam uma enorme variabilidade ao nível da cor, e em virtude disso, estudaram-se os parâmetros de cor (L*, a*, b*, C*, H*, IC e TC), de 49 vinhos rosados alentejanos, através da determinação das características cromáticas segundo o sistema CIElab. Através da análise estatística dos parâmetros de cor calculados, pretendeu-se verificar se a cor dos vinhos apresenta uma relação com o ano de produção, e se é possível estabelecer-se uma relação entre a cor dos diversos vinhos. Dada a escassez de informação em relação aos hábitos de consumo de vinhos rosados alentejanos, estud
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Book chapters on the topic "CIELab color parameters"

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Jaspers, M. E. H., and P. Moortgat. "Objective Assessment Tools: Physical Parameters in Scar Assessment." In Textbook on Scar Management. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-44766-3_17.

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AbstractObjective assessment tools can be used to evaluate whether (new) scar treatment is effective and to monitor the scar’s response to interventions in clinical practice. It is important to take the clinimetric properties of each tool into account, especially when used for the follow-up of an individual patient. An overview is provided for three important physical scar parameters that can be assessed by noninvasive objective tools: color, elasticity, and perfusion. To assess the color of a scar, an array of tools is available, all using reflectance spectroscopy and determining color by measuring the intensity of reflected light of specific wavelengths. The handheld DSM III ColorMeter offers read-out of erythema and melanin index values as well as CIEL∗a∗b values. The interrater reliability is best for the parameter a∗ of the DSM III ColorMeter. To assess scar elasticity, the Cutometer is the most widely used tool. Scar deformation is measured using negative pressure and reflected in relative and absolute elasticity parameters. On the contrary, firmness or hardness of scar tissue can be quantified by tonometry, a technique that works by exerting pressure on the skin. Lastly, it is of interest to measure scar blood flow (i.e., perfusion) as several treatment regimens work by destructing the microvasculature and/or reducing the blood flow to enhance shrinkage of hypertrophic scar tissue. Laser Doppler imaging and laser speckle imaging can be used to quantify and visualize scar blood flow, but a thorough clinimetric evaluation of these tools in scars is not performed yet.
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Conference papers on the topic "CIELab color parameters"

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MAŠÁN, Vladimír, Patrik BURG, Miroslav HORÁK, and Petr ŠNURKOVIČ. "THE COMPARISON OF PRESSED SEED OILS FEATURES." In RURAL DEVELOPMENT. Aleksandras Stulginskis University, 2018. http://dx.doi.org/10.15544/rd.2017.038.

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The grape seed oils are characteristic by a very high content of substances. However, a lipid oxidation is the fundamental problem of the seed oils quality degradation. The important indicator for determining the specific type’s purity, stability and level of oil degradation might be its colour parameter. The aim of this study was to identify the different varieties of oils, to evaluate its development during storage and to identify changes in different pressed seed oils. The CIELAB method and NIR spectroscopy were used during the research. Its main advantages include speed, accuracy and simpl
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VIŠKELIS, Jonas, Marina RUBINSKIENĖ, Dalia URBONAVIČIENĖ, Ramunė BOBINAITĖ,, and Pranas VIŠKELIS,. "OPTIMAL POSTHARVEST STORAGE PARAMETERS AND SHELF LIFE OF BABY SPINACH (SPINACIA OLERACEA L.)." In Rural Development 2015. Aleksandras Stulginskis University, 2015. http://dx.doi.org/10.15544/rd.2015.024.

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This work was done to evaluate the optimal postharvest storage parameters and shelf life of baby spinach. Baby spinach (50 g) was sealed in three different polypropylene (PP) and polyethylene (PE) packaging materials: 30 m (PP), 35 m (PE) &amp; 40 m (PE), and were stored in darkness for 3 and 9 days at 0 °C, 4 °C, 8 °C &amp; 16 °C ( 1 °C). Total content of phenolics, soluble solids, nitrates, chlorophyll content, ascorbic acid &amp; spinach color (CIEL*a*b*) were measured by standard methods after 3 and 9 days of storage. Baby spinach stored at 0  1 °C and 4  1 °C showed the best visual
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