Rafika Harrabi born in 1981 in Kairouan (Tunisia), she received the BSc degree in Electrical Engineering and the DEA degree in Automatic and Signal Processing from the High school of sciences and techniques of Tunis, respectively in 2007 and 2009. Currently, she is in the last preparation year of its PhD. Its research interests are focused on signal Processing, image processing, classification, segmentation and data fusion. Ezzedine Ben Braiek obtained his HDR on 2008 in Electrical engineering from ENSET Tunisia. He is, presently, professor in the department of electrical engineering at the technical university ESSTT and manager of the research group on vision and image processing at the CEREP. His fields