In this paper, we introduce formal definitions of the concepts fuzzy color and space. First, formalize notion for representing correspondence between computational representation colors perceptual categories identified by a name. Second, propose methodology learning based on paradigm conceptual spaces, where prototypes are used each category to be learnt. Since space approach yields crisp categorizations, novel defining boundaries basis Voronoi tessellation Finally, also as collection...

Good air quality is essential for both human beings and the environment in general. The three most harmful pollutants are nitrogen dioxide (NO2), ozone (O3) particulate matter. Due to high cost of monitoring stations, few examples this type infrastructure exist, use low-cost sensors could help monitoring. metal-oxide (MOS) usually below EUR 10 they maintain small dimensions, but their only valid through an exhaustive calibration process subsequent precision analysis. We present on-field...

The lack of safe drinking water is one the main health problems in many regions world. In order to face it, Solar disinfection (SODIS) proposes use transparent plastic containers, which are filled with contaminated water, and exposed direct sunlight until enough UV radiation received inactivate pathogens. However, a reliable method for determining end process needed. Although several approaches have been proposed literature this purpose, they do not strictly accomplish two critical...

There are a wide variety of measures in the literature that capture ¿coarseness¿ texture property. Some them have better ability to represent coarseness than others. Furthermore, some more robust against variation other image features, like brightness, contrast, noise and size image. In this paper, we propose study robustness relationship with human perception 17 classical coarseness, order obtain ranking measures. This can be used identify those highest degree least features.

This paper introduces JFCS (Java Fuzzy Color Space), an open source software for modeling colors on the basis of fuzzy color spaces, which is able to fill semantic gap between representation in computers and subjective human perception. allow introducing semantics description by using linguistic labels, taking into account boundaries terms. The methodology building spaces implemented was proposed authors previous works, it based paradigm conceptual including considering a collection names...

In this paper, a fuzzy approach for image retrieval on the basis of color and texture features is presented. For purpose, two new descriptors "Fuzzy Dominant Color Descriptor" Texture are proposed. Each descriptor will be defined as set over finite universe color/texture sets (with membership degrees according to its dominance degrees). The taking into account relationship between computational feature human perception. addition, operators proposed define conditions in queries. framework...

The analysis of the perceptual properties texture plays a fundamental role in tasks like semantic description images or content-based image retrieval using linguistic queries. In this paper, we propose to model these by means fuzzy partitions defined on domain some representative measures. particular, have focused our study coarseness, contrast and directionality, that play human perception texture. approach, number sets partitions, as well parameters membership functions, are calculated...

Visual textures in images are usually described by humans using linguistic terms related to their perceptual properties, like "very coarse", "low directional", or "high contrasted". However, the presence of these properties is very difficult characterize due imprecision, and, moreover, because perception may change depending on user. In this paper, we propose an adaptive fuzzy approach for texture modelling, that allows describe it natural language, and takes into account subjectivity human...

In this paper, the texture feature "coarseness" is modelled by means of fuzzy sets, relating representative coarseness measures (our reference set) with human perception type feature. our study, a wide variety have been analyzed, defining unidemsional and bidimensional set for different combination measures. The fineness has collected from polls filled subjects, performing an aggregation their assessments OWA operators. Using as some measures, membership function corresponding to which...

This paper introduces a software tool for designing customized fuzzy color spaces able to fill the semantic gap between representation in computers and subjective human perception. Fuzzy colors allow introducing semantics description of by using linguistic labels, taking into account boundaries terms. JFCS Tool is based on an approach, proposed authors previous works, developing basis collection names corresponding crisp representatives. The implemented Java includes several graphical tools...

In this paper we introduce several fuzzy resemblance relations between different combinations of crisp and colors. As a starting point, discuss about colors color spaces as way to represent information, providing examples conjunctive disjunctive use for purpose. Then determine types measuring the degree matching information kinds, using well known results from sets possibility theories. We study particular case in which user considers there is no comprising space under consideration. The...

In this paper the concept of fuzzy descriptor as a level-two set to represent some visual features is proposed.In particular, based on dominance color and texture defined applied image retrieval.For purpose, are modelled using sets, taking into account imprecision related these features.In addition, basis nondecreasing quantifier, degree calculated by means quantified sentences evaluation.Finally, comparison measures between descriptors presented, proposed illustrated in retrieval examples.

This paper introduces new online tools to create fuzzy color spaces and share them with researchers in computational modeling. Fuzzy spaces, which are able fill the semantic gap between representation computers subjective human perception, built according an approach proposed by authors previous works. The methodology for building is based on paradigm of conceptual including boundaries, considering a collection names corresponding crisp representatives. In this sense, existing naming systems...

Texture is one of the most used low-level feature for image analysis and, in addition, difficult to characterize due its imprecision. It usual humans describe visual textures according some perceptual properties like coarseness-fineness, orientation or regularity. In this paper, we propose model fineness property, that popular one, by means a fuzzy partition on domain representative measures. our study, wide variety measures studied, and partitions are obtained relating each measure (our...