1. LESIA Laboratory, Department of Computer Science, University of Biskra, Biskra, Algeria
2. School of Information Science, College of Communication and Information, University of Kentucky, Lexington, Kentucky, USA
3. Image, Signal and Intelligent Systems Laboratory-LISSI, Department of Networks and Telecoms, IUT C/V, University of Paris-Est Creteil (UPEC), Vitry sur Seine, France