Samy Tehami André Bigand Olivier Colot Color Image Segmentation Based on Type-2 Fuzzy Sets and Region Merging. 943-954 2007 conf/acivs/2007 ACIVS http://dx.doi.org/10.1007/978-3-540-74607-2_86 db/conf/acivs/acivs2007.html#TehamiBC07