Anna Anzalone Francesco Isgrò Domenico Tegolo Combining Fuzzy C-Mean and Normalized Convolution for Cloud Detection in IR Images. 140-147 2009 WILF http://dx.doi.org/10.1007/978-3-642-02282-1_18 conf/wilf/2009 db/conf/wilf/wilf2009.html#AnzaloneIT09