Skip to Content
You are currently on the new version of our website. Access the old version .

732 Results Found

  • Article
  • Open Access
20 Citations
10,472 Views
17 Pages

Color Enhancement for Four-Component Decomposed Polarimetric SAR Image Based on a CIE-Lab Encoding

  • Cheng-Yen Chiang,
  • Kun-Shan Chen,
  • Chih-Yuan Chu,
  • Yang-Lang Chang and
  • Kuo-Chin Fan

2 April 2018

Color enhancement of decomposed fully polarimetric synthetic aperture radar (PolSAR) image is vital for visual understanding and interpretation of the polarimetric information about the target. It is common practice to use RGB or HIS color space to d...

  • Article
  • Open Access
2 Citations
3,129 Views
13 Pages

The Influence of the Used Bleaching Earth on the Content of Natural Dyes in Hemp (Cannabis sativa L.) Oils

  • Damian Marcinkowski,
  • Edyta Nizio,
  • Wojciech Golimowski and
  • Kamil Czwartkowski

31 December 2023

Cold-pressed hemp oils are characterized by an intense color, which is undesirable when used directly. Therefore, research was undertaken on removing chlorophyll and carotenoids effectively. This publication presents the results of tests that verifie...

  • Article
  • Open Access
16 Citations
2,781 Views
9 Pages

26 May 2023

In this contribution, the color of dry beech wood from the zone, sapwood, mature wood and false heartwood of Fagus sylvatica L. trees was analyzed, and the measurement values were statistically processed in relation to the lightness coordinate L* as...

  • Article
  • Open Access
1 Citations
1,146 Views
36 Pages

Color Identification on Heterogeneous Bean Landrace Seeds Using Gaussian Mixture Models in CIE L*a*b* Color Space

  • Adriana-Laura López-Lobato,
  • Martha-Lorena Avendaño-Garrido,
  • Héctor-Gabriel Acosta-Mesa,
  • José-Luis Morales-Reyes and
  • Elia-Nora Aquino-Bolaños

The classification of bean landraces based on their coloration is of particular interest, as the color of these plants is associated with the nutritional components present in their seeds. In this paper, the authors propose a procedure to identify th...

  • Article
  • Open Access
2 Citations
2,342 Views
15 Pages

In recent years, Thailand’s agriculture sector has seen a significant rise in pesticide usage due to its vital role in the economy and global food trade. However, the uncontrolled use of pesticides poses severe health and environmental risks. T...

  • Communication
  • Open Access
30 Citations
9,186 Views
16 Pages

8 August 2017

Plant-specific herbicide application requires sensor systems for plant recognition and differentiation. A literature review reveals a lack of sensor systems capable of recognizing small weeds in early stages of development (in the two- or four-leaf s...

  • Article
  • Open Access
1 Citations
61,538 Views
22 Pages

Pixelator v2: A Novel Perceptual Image Comparison Method with LAB Colour Space and Sobel Edge Detection for Enhanced Security Analysis

  • Somdip Dey,
  • Jabir Alshehabi Al-Ani,
  • Aikaterini Bourazeri,
  • Suman Saha,
  • Rohit Purkait,
  • Samuel Hill and
  • Julian Thompson

19 November 2024

In this paper, we introduce Pixelator v2, a novel perceptual image comparison method designed to enhance security and analysis through improved image difference detection. Unlike traditional metrics such as MSE, Q, and SSIM, which often fail to captu...

  • Feature Paper
  • Article
  • Open Access
3 Citations
3,493 Views
13 Pages

Detection of Carrageenan in Cheese Using Lectin Histochemistry

  • Marie Bartlová,
  • Matej Pospiech,
  • Zdeňka Javůrková and
  • Bohuslava Tremlová

27 July 2021

Carrageenan is a substance widely used as an additive in the food industry. Among other things, it is often added to processed cheese, where it has a positive effect on texture. Processing of such cheese involves grinding, melting and emulsifying the...

  • Feature Paper
  • Article
  • Open Access
11 Citations
5,440 Views
16 Pages

Specification and Simplification of Analytical Methods to Determine Wine Color

  • Marcel Hensel,
  • Sarah Di Nonno,
  • Yannick Mayer,
  • Marina Scheiermann,
  • Jörg Fahrer,
  • Dominik Durner and
  • Roland Ulber

15 December 2022

The color of wine is an important quality parameter essential for the first impression of consumers. The International Organization of Vine and Wine (OIV) recommends two methods to describe wine color: color calculation according to Glories and the d...

  • Article
  • Open Access
1 Citations
1,815 Views
15 Pages

A Novel Approach to Quantifying the Failure Modes of Concrete-Epoxy Interface

  • Abubakar Sodiq Ishaq,
  • Yoonju Jang,
  • Donghyeok An,
  • Yoseok Jeong and
  • Ilro Youn

16 March 2023

The failure or debonding of CEIs (Concrete-Epoxy Interfaces) in Fiber-Reinforced Polymer concrete (FRP) systems occurs in one or a combination of three modes: CC (Cohesive failure in Concrete), CE (Cohesive failure in Epoxy), and IF (Interfacial Fail...

  • Feature Paper
  • Article
  • Open Access
37 Citations
8,865 Views
8 Pages

Color Stability of New Esthetic Restorative Materials: A Spectrophotometric Analysis

  • Claudio Poggio,
  • Lodovico Vialba,
  • Anna Berardengo,
  • Ricaldone Federico,
  • Marco Colombo,
  • Riccardo Beltrami and
  • Andrea Scribante

The aim of this in vitro study was to evaluate and compare the color stability of different esthetic restorative materials (one microfilled composite, one nanofilled composite, one nanoceramic composite, one microfilled hybrid composite, one microfil...

  • Article
  • Open Access
44 Citations
5,498 Views
19 Pages

3 March 2021

To accurately extract cultivated land boundaries based on high-resolution remote sensing imagery, an improved watershed segmentation algorithm was proposed herein based on a combination of pre- and post-improvement procedures. Image contrast enhancem...

  • Article
  • Open Access
850 Views
16 Pages

Combined Thermal and Colorimetric Analysis as a Tool for Detecting Counterfeit Viagra® Tablets

  • Paweł Ramos,
  • Sławomir Wilczyński,
  • Klaudia Stocerz,
  • Roman Adamczyk and
  • Anita Stanjek-Cichoracka

30 December 2025

Background/Objectives: This study aimed to perform a comparative analysis of the original Viagra® product and sildenafil-containing tablets obtained from illegal sources (the darknet). Specifically, the analyzed material consisted of samples seiz...

  • Proceeding Paper
  • Open Access
1,718 Views
7 Pages

Saturation and Hue Analysis Using Complex Hadamard Transform

  • Dur-e-Jabeen,
  • Tahmina Khan,
  • Sarah Ahmed,
  • Yasir Zaheen and
  • Samiya Asghar

This paper presents an overview in relation to observed changes in saturation and hue. The magnitude and phase components of color images are analyzed using the Complex Hadamard Transform. By considering the human visual system, CIE La*b* color space...

  • Article
  • Open Access
14 Citations
11,690 Views
14 Pages

In this study, we present a method of chroma enhancement in the CIELAB color space and compare it with that in the RGB color space. Color image enhancement using the CIELAB color space has the disadvantage that the color gamut problem occurs because...

  • Article
  • Open Access
11 Citations
4,264 Views
15 Pages

17 September 2022

Black polymer films with high thermal stability are highly desired in flexible electrical and electronic fields. Conventional black polymer films based on high-temperature resistant polymers and black inorganic dyes are usually suffered from the poor...

  • Feature Paper
  • Article
  • Open Access
9 Citations
3,485 Views
12 Pages

New Ecological Solutions Involved in the Cleaning of a 19th Century Icon

  • Tudor Cosmin Iurcovschi,
  • Viorica Vasilache,
  • Ion Sandu,
  • Marius Zaharia,
  • Olga Pintilie and
  • Andrei Victor Sandu

10 February 2020

Cleaning of old icons requires special attention to selecting the processes and systems compatible with the chemical nature and adhesions of the deposits, to not affect the polychrome layer or their conservation status. The study was carried out on a...

  • Article
  • Open Access
4 Citations
2,910 Views
13 Pages

16 February 2023

In this paper, the chemical composition and spectroscopy of 38 violet-red to orange-red spinel samples were analyzed by energy dispersive X-ray fluorescence spectrometer and UV-visible spectrophotometer, based on CIE LAB color space, to explore the e...

  • Article
  • Open Access
2 Citations
1,759 Views
12 Pages

24 October 2023

In this study about spessartines,13 spessartine samples with proper conditions are used for FTIR spectrum and UV-Vis spectrum tests to find the gemological characteristics and coloration mechanism. In the UV-Vis spectrum, spessartines’ special color...

  • Article
  • Open Access
2,065 Views
14 Pages

The Color and Magnetic Properties of Urban Dust to Identify Contaminated Samples by Heavy Metals in Mexico City Metropolitan Area

  • Alexandra Méndez-Sánchez,
  • Ángeles Gallegos,
  • Rafael García,
  • Rubén Cejudo,
  • Avto Goguitchaichvili and
  • Francisco Bautista

25 March 2025

Particles from gasoline-powered vehicle combustion often contain dark or black magnetic iron oxides. This work evaluates color variations and heavy metal concentrations in urban dust by separating magnetic particles. We used a high-power magnet to se...

  • Feature Paper
  • Article
  • Open Access
319 Views
21 Pages

The Sensor Modules of a Dedicated Automatic Inspection System for Screening Smoked Sausage Coloration

  • Yen-Hsiang Wang,
  • Yu-Fen Yen,
  • Kuan-Chieh Lee,
  • Ching-Yuan Chang,
  • Chin-Cheng Wu,
  • Meng-Jen Tsai and
  • Jen-Jie Chieh

20 January 2026

The external color of smoked sausages is a critical indicator of quality and uniformity in processing. Commercial colorimeters are unsuitable for high-throughput sorting due to the challenges posed by the sausage’s curved cylindrical surface an...

  • Article
  • Open Access
5 Citations
3,475 Views
15 Pages

Thrips tabaci Lindeman is a global pest and also represents a serious threat to onion production in Poland. In 2 years (2015–2016) of field studies, 8 onion cultivars were evaluated to characterize their susceptibility to onion thrips and to determin...

  • Article
  • Open Access
14 Citations
5,772 Views
14 Pages

7 June 2022

The current color-difference formulas were developed based on 2D samples and there is no standard guidance for the color-difference evaluation of 3D objects. The aim of this study was to test and optimize the CIELAB and CIEDE2000 color-difference for...

  • Article
  • Open Access
2 Citations
2,851 Views
22 Pages

6 February 2023

Vessels with a special shape have always been a point of interest for pottery studies, especially from the perspective of the distinct functionality that these pots would have had. The ceramic typologies made for the miniature finds specific to the M...

  • Article
  • Open Access
5 Citations
2,164 Views
15 Pages

Background: The pharmaceutical industry is shifting from end-product testing towards real-time release testing. This approach is based on the continuous collection of process data and product information, which is finally utilized for the release dec...

  • Article
  • Open Access
3 Citations
3,870 Views
12 Pages

Differentiating Soils from Arable and Fallow Land Using Spectrometry

  • Pavel Ukrainskiy,
  • Fedor Lisetskii and
  • Arseniy Poletaev

In this study, we analyse soil system responses—in particular, the colours of soils resulting from different types of land use (arable land and residential areas) caused by the construction of an ancient boundary rampart near a multilayer monument da...

  • Article
  • Open Access
3 Citations
3,329 Views
25 Pages

12 December 2022

This study analyzes the color combinations composed by the Russian avant-garde artist Mikhail Matyushin and his disciples for the Reference Book of Color (1932), summarizing their experimental research on the psychophysiology of color perception. Hav...

  • Article
  • Open Access
78 Citations
15,994 Views
12 Pages

Principal Component Regression Analysis of the Relation Between CIELAB Color and Monomeric Anthocyanins in Young Cabernet Sauvignon Wines

  • Fu-Liang Han,
  • Wen-Na Zhang,
  • Qiu-Hong Pan,
  • Cheng-Rong Zheng,
  • Hai-Yan Chen and
  • Chang-Qing Duan

17 November 2008

Color is one of the key characteristics used to evaluate the sensory quality of red wine, and anthocyanins are the main contributors to color. Monomeric anthocyanins and CIELAB color values were investigated by HPLC-MS and spectrophotometry during fe...

  • Article
  • Open Access
5 Citations
4,042 Views
15 Pages

7 March 2021

Pinking is the term used for describing the pink colouration that appears in white wines produced under reducing conditions when oxidised. The ability to predict the susceptibility of white wines for pinking is of utmost importance for wine producers...

  • Article
  • Open Access
13 Citations
4,912 Views
30 Pages

1 December 2019

Recent very high spatial resolution (VHR) remote sensing satellites provide high spatial resolution panchromatic (Pan) images in addition to multispectral (MS) images. The pan sharpening process has a critical role in image processing tasks and geosp...

  • Article
  • Open Access
9 Citations
4,990 Views
22 Pages

“Playing” with Color: How Similar Is the “Geometry” of Color Harmony in the CIELAB Color Space across Countries?

  • Yulia A. Griber,
  • Tatyana Samoilova,
  • Abdulrahman S. Al-Rasheed,
  • Victoria Bogushevskaya,
  • Elisa Cordero-Jahr,
  • Alexey Delov,
  • Yacine Gouaich,
  • James Manteith,
  • Philip Mefoh and
  • Tatyana Sivova
  • + 2 authors

12 March 2024

In physical environments and cultural landscapes, we most often deal not with separate colors, but with color combinations. When choosing a color, we usually try to “fit” it into a preexisting color context, making the new color combinati...

  • Article
  • Open Access
11 Citations
2,798 Views
10 Pages

26 October 2022

This article explores the factors that influence the color of blue iolite, which is the gem-quality variety of the cordierite mineral. The X-Rite SP62 portable spectrophotometer was used to measure color in the CIELAB color space. ED-XRF and UV&ndash...

  • Article
  • Open Access
2 Citations
3,095 Views
23 Pages

Nanoparticles and Plant By-Products for Edible Coatings Production: A Case Study with Zinc, Titanium, and Silver

  • Alexandra Tauferová,
  • Zdeňka Javůrková,
  • Matej Pospiech,
  • Hana Koudelková Mikulášková,
  • Karolína Těšíková,
  • Dani Dordevic,
  • Simona Dordevic and
  • Bohuslava Tremlová

12 July 2022

For the development of functional edible packaging that will not lead to rejection by the consumer, it is needed to analyze the interactions between ingredients in the packaging matrix. The aim of this study was to develop edible chitosan-based coati...

  • Article
  • Open Access
26 Citations
4,249 Views
27 Pages

Vis-NIR Hyperspectral Imaging for Online Quality Evaluation during Food Processing: A Case Study of Hot Air Drying of Purple-Speckled Cocoyam (Colocasia esculenta (L.) Schott)

  • John Ndisya,
  • Ayub Gitau,
  • Duncan Mbuge,
  • Arman Arefi,
  • Liliana Bădulescu,
  • Elke Pawelzik,
  • Oliver Hensel and
  • Barbara Sturm

11 October 2021

In this study, hyperspectral imaging (HSI) and chemometrics were implemented to develop prediction models for moisture, colour, chemical and structural attributes of purple-speckled cocoyam slices subjected to hot-air drying. Since HSI systems are co...

  • Article
  • Open Access
1 Citations
724 Views
16 Pages

14 October 2025

Bigels are promising delivery systems for bioactive compounds, combining the properties of hydrogels and oleogels. Pequi carotenoids, characterized by their natural yellow fluorescence, hold potential to replace the artificial dye tartrazine in foods...

  • Article
  • Open Access
77 Citations
9,724 Views
14 Pages

26 March 2012

The heterogeneity of color distribution between sapwood and heartwood limits the market for wood from fast-growth plantations of tropical species. Wood color is associated with wood extractives contents. This study presents the relationship between w...

  • Article
  • Open Access
4 Citations
3,855 Views
15 Pages

Development of a Hybrid System Based on the CIELAB Colour Space and Artificial Neural Networks for Monitoring pH and Acidity During Yogurt Fermentation

  • Ulises Alvarado,
  • Jhon Tacuri,
  • Alejandro Coloma,
  • Edgar Gallegos Rojas,
  • Herbert Callo,
  • Cristina Valencia-Sullca,
  • Nancy Curasi Rafael and
  • Manuel Castillo

1 August 2025

Monitoring pH and acidity during yoghurt fermentation is essential for product quality and process efficiency. Conventional measurement methods, however, are invasive and labour-intensive. This study developed artificial neural network (ANN) models t...

  • Article
  • Open Access
75 Citations
8,898 Views
27 Pages

Evaluating Maize Genotype Performance under Low Nitrogen Conditions Using RGB UAV Phenotyping Techniques

  • Ma. Luisa Buchaillot,
  • Adrian Gracia-Romero,
  • Omar Vergara-Diaz,
  • Mainassara A. Zaman-Allah,
  • Amsal Tarekegne,
  • Jill E. Cairns,
  • Boddupalli M. Prasanna,
  • Jose Luis Araus and
  • Shawn C. Kefauver

16 April 2019

Maize is the most cultivated cereal in Africa in terms of land area and production, but low soil nitrogen availability often constrains yields. Developing new maize varieties with high and reliable yields using traditional crop breeding techniques in...

  • Article
  • Open Access
27 Citations
3,971 Views
6 Pages

24 April 2020

The color of French fries is an organoleptic attribute indicative of this product quality and also a reliable indicator of its safety. The darker the product color, the higher its acrylamide concentration. Acrylamide is an organic compound of the ami...

  • Article
  • Open Access
10 Citations
3,465 Views
14 Pages

Effect of Controlled Atmospheres and Environmental Conditions on the Physicochemical and Sensory Characteristics of Sweet Cherry Cultivar Satin

  • Luís Pinto de Andrade,
  • Abel Veloso,
  • Christophe Espírito Santo,
  • Pedro Dinis Gaspar,
  • Pedro Dinho Silva,
  • Mafalda Resende,
  • Helena Beato,
  • Cátia Baptista,
  • Cristina Miguel Pintado and
  • Maria Paula Simões
  • + 1 author

13 January 2022

Sweet cherry is a highly appreciated seasonal fruit with a high content of bioactive compounds; however, this highly perishable fruit has a relatively short shelf-life period. Here, we evaluated the evolution of the physicochemical and sensory qualit...

  • Article
  • Open Access
9 Citations
3,729 Views
17 Pages

22 September 2021

Cylindrical specimens obtained from the monzogranite host rock of the National Radioactive Waste Repository of Hungary were tested at room temperature and 250 °C, 500 °C, and 750 °C of heat treatment. Reflectance spectra (color), bulk density, Durosk...

  • Article
  • Open Access
1,032 Views
12 Pages

The Effect of the Level of Goat Liver Addition to Goat Minced Meat on the Near-Infrared Spectra, Colour, and Shelf Life of Samples

  • Louwrens Christiaan Hoffman,
  • Wencong Wu,
  • Shuxin Zhang,
  • Michel Beya and
  • Daniel Cozzolino

21 April 2025

This study aimed to evaluate the utilisation of near-infrared (NIR) spectroscopy combined with chemometric techniques to identify the addition of goat liver to goat minced meat and to monitor the shelf life of the samples up to 8 days of storage. Mix...

  • Article
  • Open Access
6 Citations
4,352 Views
20 Pages

5 February 2024

The aim of this study was to investigate the effects of spraying plants with 0.03% salicylic acid (SA), 0.7% calcium nitrate (Ca), and 0.03% salicylic acid together with 0.7% calcium nitrate (SA + Ca) on plant growth, yield, and fruit quality of pepp...

  • Article
  • Open Access
25 Citations
4,715 Views
24 Pages

Plant Byproducts as Part of Edible Coatings: A Case Study with Parsley, Grape and Blueberry Pomace

  • Alexandra Tauferova,
  • Matej Pospiech,
  • Zdenka Javurkova,
  • Bohuslava Tremlova,
  • Dani Dordevic,
  • Simona Jancikova,
  • Karolina Tesikova,
  • Michal Zdarsky,
  • Tomas Vitez and
  • Monika Vitezova

3 August 2021

Studies dealing with the development of edible/biodegradable packaging have been gaining popularity since these commodities are marked as being ecofriendly, especially when byproducts are incorporated. Consequently, this study aimed at the developmen...

  • Article
  • Open Access
3 Citations
1,963 Views
18 Pages

Thermal and Colorimetric Parameter Evaluation of Thermally Aged Materials: A Study of Diglycidyl Ether of Bisphenol A/Triethylenetetramine System and Fique Fabric-Reinforced Epoxy Composites

  • Michelle Souza Oliveira,
  • Artur Camposo Pereira,
  • Henry Alonso Colorado,
  • Natalin Michele Meliande,
  • Juliana dos Santos Carneiro da Cunha,
  • André Ben-Hur da Silva Figueiredo and
  • Sergio Neves Monteiro

14 September 2023

The main modifications of thermal and colorimetric parameters after thermal aging of DGEBA/TETA system (plain epoxy) and fique-fiber woven fabric-reinforced epoxy composites are described. As a preliminary study, thermal analysis was carried out on e...

  • Article
  • Open Access
7 Citations
2,767 Views
17 Pages

27 July 2023

Processed cheeses (PC) are products resulting from the mixing and melting of rennet cheese, emulsifying salts, water, and possibly various additional ingredients. They are considered good vehicles for new ingredients, including plant-based ones. In a...

  • Article
  • Open Access
6 Citations
2,973 Views
15 Pages

Enhancing Wheat Gluten Content and Processing Quality: An Analysis of Drip Irrigation Nitrogen Frequency

  • Tianjia Hao,
  • Rong Chen,
  • Jing Jia,
  • Changxing Zhao,
  • Yihang Du,
  • Wenlu Li,
  • Ludi Zhao and
  • Hongxiao Duan

26 November 2023

Drip irrigation is a water-saving and fertilizer-saving application technology used in recent years, with which the frequency of drip irrigation nitrogen application has not yet been determined. In order to investigate the effects of different drip i...

  • Article
  • Open Access
14 Citations
5,002 Views
14 Pages

Effect of Re-Used Lignite and Mineral Wool Growing Mats on Plant Growth, Yield and Fruit Quality of Cucumber and Physical Parameters of Substrates in Hydroponic Cultivation

  • Radosław Łaźny,
  • Małgorzata Mirgos,
  • Jarosław L. Przybył,
  • Jacek S. Nowak,
  • Małgorzata Kunka,
  • Janina Gajc-Wolska and
  • Katarzyna Kowalczyk

In hydroponic cultivation of vegetables with a solid substrate, mineral wool predominates. The pro-ecological policy and consumers’ expectations cause an increase in interest in organic substrates, which, when properly used, are less harmful to the e...

  • Article
  • Open Access
1 Citations
1,623 Views
12 Pages

Preliminary Study on the Feasibility of Radiation Technique for Mural Protection

  • Zesheng Wang,
  • Min Luo,
  • Yang Shao,
  • Lingling Ma and
  • Minghong Wu

2 June 2023

Murals are a significant cultural heritage of humanity, and one of the conservation studies is to control the growth of microorganisms. General biocide agents can be used to preserve murals while also providing new organic carbon sources and increasi...

  • Review
  • Open Access
8 Citations
5,294 Views
13 Pages

Linked Color Imaging for Stomach

  • Eiji Umegaki,
  • Hiraku Misawa,
  • Osamu Handa,
  • Hiroshi Matsumoto and
  • Akiko Shiotani

Image-enhanced endoscopy (IEE) plays an important role in the detection and further examination of gastritis and early gastric cancer (EGC). Linked color imaging (LCI) is also useful for detecting and evaluating gastritis, gastric intestinal metaplas...

of 15