Munsell Soil Colour Classification Using Smartphones through a Neuro-Based Multiclass Solution

Colour is a property widely used in many fields to extract information in several ways. In soil science, colour provides information regarding the chemical and physical characteristics of soil, such as genesis, composition, and fertility, amongst others. Thus, accurate estimation of soil colour is e...

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Main Authors: M. C. Pegalajar, L. G. B. Ruiz, D. Criado-Ramón
Format: Article
Language:English
Published: MDPI AG 2023-02-01
Series:AgriEngineering
Subjects:
Online Access:https://www.mdpi.com/2624-7402/5/1/23
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author M. C. Pegalajar
L. G. B. Ruiz
D. Criado-Ramón
author_facet M. C. Pegalajar
L. G. B. Ruiz
D. Criado-Ramón
author_sort M. C. Pegalajar
collection DOAJ
description Colour is a property widely used in many fields to extract information in several ways. In soil science, colour provides information regarding the chemical and physical characteristics of soil, such as genesis, composition, and fertility, amongst others. Thus, accurate estimation of soil colour is essential for many disciplines. To achieve this, experts traditionally rely on comparing Munsell colour charts with soil samples, which is a laborious process. In this study, we proposed using artificial neural networks to catalogue soil colour with a two-step classification. Firstly, the hue variable is estimated, and then the remaining two coordinates, value and chroma. Our experiments were conducted using three different, common cameras (one digital camera and two mobile phones). The results of our tests showed a 20% improvement in classification accuracy using the lowest-quality camera and an average accuracy of over 90%.
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spelling doaj.art-7b886cebb2e8413eafea878dbb78cf352023-11-17T09:03:13ZengMDPI AGAgriEngineering2624-74022023-02-015135536810.3390/agriengineering5010023Munsell Soil Colour Classification Using Smartphones through a Neuro-Based Multiclass SolutionM. C. Pegalajar0L. G. B. Ruiz1D. Criado-Ramón2Department of Computer Science and Artificial Intelligence, University of Granada, 18014 Granada, SpainDepartment of Software Engineering, University of Granada, 18014 Granada, SpainDepartment of Computer Science and Artificial Intelligence, University of Granada, 18014 Granada, SpainColour is a property widely used in many fields to extract information in several ways. In soil science, colour provides information regarding the chemical and physical characteristics of soil, such as genesis, composition, and fertility, amongst others. Thus, accurate estimation of soil colour is essential for many disciplines. To achieve this, experts traditionally rely on comparing Munsell colour charts with soil samples, which is a laborious process. In this study, we proposed using artificial neural networks to catalogue soil colour with a two-step classification. Firstly, the hue variable is estimated, and then the remaining two coordinates, value and chroma. Our experiments were conducted using three different, common cameras (one digital camera and two mobile phones). The results of our tests showed a 20% improvement in classification accuracy using the lowest-quality camera and an average accuracy of over 90%.https://www.mdpi.com/2624-7402/5/1/23artificial neural networkscolour matchingMunsell soil-colour chartsmulticlassification
spellingShingle M. C. Pegalajar
L. G. B. Ruiz
D. Criado-Ramón
Munsell Soil Colour Classification Using Smartphones through a Neuro-Based Multiclass Solution
AgriEngineering
artificial neural networks
colour matching
Munsell soil-colour charts
multiclassification
title Munsell Soil Colour Classification Using Smartphones through a Neuro-Based Multiclass Solution
title_full Munsell Soil Colour Classification Using Smartphones through a Neuro-Based Multiclass Solution
title_fullStr Munsell Soil Colour Classification Using Smartphones through a Neuro-Based Multiclass Solution
title_full_unstemmed Munsell Soil Colour Classification Using Smartphones through a Neuro-Based Multiclass Solution
title_short Munsell Soil Colour Classification Using Smartphones through a Neuro-Based Multiclass Solution
title_sort munsell soil colour classification using smartphones through a neuro based multiclass solution
topic artificial neural networks
colour matching
Munsell soil-colour charts
multiclassification
url https://www.mdpi.com/2624-7402/5/1/23
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AT dcriadoramon munsellsoilcolourclassificationusingsmartphonesthroughaneurobasedmulticlasssolution