In this paper we describe a non-parametric probabilistic model that can be used to encode relationships in color naming datasets. This model can be used with datasets with any number of color terms and expressions, as well as terms from multiple languages. Because the model is based on probability theory, we can use classic statistics to compute features of interest to color scientists. In part...

Categorical perception provides a potential link between color perception and the linguistic categories that correspond to the basic color terms. We examined whether the sensory information of the second-stage chromatic mechanisms is further processed so that sensitivity for color differences yields categorical perception. In this case, sensitivity for color differences should be higher across ...

Several studies investigating color discrimination across languages have shown a facilitation effect in groups that employ more than one term to refer to a given color. While Uruguayans use “azul” to refer to dark blue and “celeste” for light blue, Spaniards use “azul” for dark blue and the compound terms “azul celeste” or “azul claro” for light blue. In this study, Uruguayan and Spanish partic...

The objective of this paper is to ascertain contemporary Italian linguistic categorization of the macro-color concept BLUE, and compare the results to English interpretation of the same tasks. Native Italian speakers affirm that they habitually use three blue color terms: blu, azzurro, and celeste; often idealizing azzurro over blu, as being “more Italian”. I propose that according to the task ...

This paper focuses on the embedding of the uncertainty about color images, naturally arising from the quantization and the human perception of colors, into histogram-type descriptors, adopted as indexing mechanism. In particular, our work has led to an extension of the GIFT platform for Content Based Image Retrieval based on fuzzy color indexing in the HSV color space. To quantify the performan...

Color refinement is a basic algorithmic routine for graph isomorphism testing and has recently been used for computing graph kernels as well as for lifting belief propagation and linear programming. So far, color refinement has been treated as a combinatorial problem. Instead, we treat it as a nonlinear continuous optimization problem and prove that it implements a conditional gradient optimize...

The influence of culture on color perception and categorization is most often studied by comparing the use of single-word (monolexemic) color terms to name color categories across different languages, as in the World Color Survey [1, 2]. Color categorization and naming have been studied across a wide range of cultures to explore questions about the universality of basic color categories, relati...