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. Texture is a visual feature frequently used in image analysis that has associated certain vagueness. However, the majority of the approaches found in the literature do not either consider such vagueness or they do not take into account human,perception to model the related uncertainty. In this paper we model the concept of "coarseness", one of the most important textural features, by means of fuzzy sets and considering the way humans perceive this kind of texture. Speciflcally, we relate representative measures of coarseness with its presence degree. To obtain these "presence degrees", we collect assessments from polls fllled by human subjects, performing an aggregation of such assessments. Thus, the membership,function corresponding to the fuzzy set "coarseness" is modelled by using as reference set the representative measures and the aggregated data. Keywords: Image features, texture features, fuzzy texture, visual coarseness.

Using Fuzzy Sets for Coarseness Representation in Texture Images