@article {IOPORT.05904694,
    author       = {Darafsheh, M.R. and Moghani, A.},
    title        = {Some fuzzy sets for fuzzy color categorization.},
    year         = {2009},
    journal      = {Italian Journal of Pure and Applied Mathematics [electronic only]},
    volume       = {26},
    issn         = {2239-0227},
    pages        = {41-50},
    publisher    = {Forum Editrice Universitaria Udinese Srl, Udine},
    abstract     = {Summary: For given set $X$ of cardinality four, concluded Hue, Saturation and Value in the HSV color space and mean, respectively, one has determined the table of hyper-operations of semi-join spaces associated with upper and lower approximation operators of a fuzzy approximation space $(X,R)$, where $R$ is a $T$-similarity relation on $X$ and $T$ is a continuous triangular norm on unit interval $[0,1]$. Then, some useful fuzzy sets for fuzzy color categorization are introduced which provide a computational model for color categorization.},
    identifier   = {05904694},
}