Mohamed KALLEL was born in Sfax (Tunisia) in Mai 1979. He received the engineering Diploma from the National Engineering School of Sfax (ENIS) in 2004, the DEA in electronic from the National Engineering School of Sfax (ENIS) where he is currently pursuing the Doctor degree. Currently, He is a Research member in the Research Unit Sciences and Technologies of Image and Telecommunications (SETIT) ISBS - Tunisia and in the Laboratory of Franche Comte (LIFC) Besançon - France. His research interests include multiple watermarking and data hiding, Telemedecine and image processing.