Results 21 to 30 of about 1,581 (206)

Aplicación del valor de tono de color directo para el control cromático del proceso de recubrimiento de tabletas farmacéuticas

open access: yesTecnología en Marcha, 2021
Se propone una aplicación novedosa de la fórmula SCTV (Spot Color Tone Value) proveniente de la industria de reproducción gráfica, para el control de la calidad del proceso de recubrimiento de tabletas farmacéuticas.
Mac Arturo Murillo-Fernández   +4 more
doaj   +1 more source

Perceptual color clustering for color image segmentation based on CIEDE2000 color distance [PDF]

open access: yes, 2009
In this paper, a novel technique for color clustering with application to color image segmentation is presented. Clustering is performed by applying the k-means algorithm in the L*a*b* color space. Nevertheless, Euclidean distance is not the metric chosen to measure distances, but CIEDE2000 color difference formula is applied instead.
Acha Piñero, Begoña   +2 more
openaire   +3 more sources

The Transformation of RGB Images to Munsell Soil-Color Charts

open access: yesUniciencia, 2022
[Objective] The transformation from RGB to Munsell color space is a relevant issue for different tasks, such as the identification of soil taxonomy, organic materials, rock materials, skin types, among others.
Martín Solís   +2 more
doaj   +1 more source

Assessment of hyperspectral imaging and CycleGAN-simulated narrowband techniques to detect early esophageal cancer

open access: yesScientific Reports, 2023
The clinical signs and symptoms of esophageal cancer (EC) are often not discernible until the intermediate or advanced phases. The detection of EC in advanced stages significantly decreases the survival rate to below 20%.
Kai-Yao Yang   +5 more
doaj   +1 more source

Optimizing Color-Difference Formulas for 3D-Printed Objects

open access: yesSensors, 2022
Based on previous visual assessments of 440 color pairs of 3D-printed samples, we tested the performance of eight color-difference formulas (CIELAB, CIEDE2000, CAM02-LCD, CAM02-SCD, CAM02-UCS, CAM16-LCD, CAM16-SCD, and CAM16-UCS) using the standardized ...
Min Huang   +6 more
doaj   +1 more source

Applicability of the CIELAB and CIEDE2000 Formulae for Detection of Colour Changes in Colour-Changeable Chewing Gum for Evaluating Masticatory Function [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2017
Introduction: Mastication is one of the essential stomatognathic functions and is impaired when mandibulectomy is performed for removal of head and neck lesions.
Yesiboli Yeerken   +4 more
doaj   +1 more source

Effect of White Light-Emitting Diode Illuminants Recommended by the CIE on Colors of Dental Ceramic Materials

open access: yesApplied Sciences, 2023
The aim of this study was to evaluate color inconstancy of dental ceramics under the white light-emitting diode illuminants recently proposed by the CIE. From spectral reflectance factors of 18 dental ceramics (VST, NSP, and IEC; shades A1, A2, A3, A3.5,
Javier Ruiz-López   +5 more
doaj   +1 more source

The effect of bleaching applications on stained bulk-fill resin composites

open access: yesBMC Oral Health, 2022
Background The structure of bulk-fill resin composites differs from that of their conventional counterparts, but how this difference affects the color stability of the former after staining and bleaching is unclear.
Ayse Tugba Erturk-Avunduk   +2 more
doaj   +1 more source

Effects of background color and restoration depth on color adjustment potential of a new single-shade resin composite versus multi-shade resin composites

open access: yesFrontiers in Bioengineering and Biotechnology, 2023
The objectives of this study was to evaluate the effects of background color and restoration depth on color adjustment potential of a new single-shade resin composite versus multi-shade resin composites.
Jiakang Zhu   +4 more
doaj   +1 more source

Exploring the limits of color accuracy in technical photography

open access: yesHeritage Science, 2021
The growing importance of publishing art collections online has led to increasingly strict tolerances on digital photography of art objects. There are two internationally recognized sets of guidelines for creating high-quality digital images, Metamorfoze
Eric Kirchner   +3 more
doaj   +1 more source

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