@conference {spie04EM, title = {Blind iterative decoding of side-informed data hiding using the Expectation-Maximization algorithm}, booktitle = {Security, Steganography, and Watermarking of Multimedia Contents}, series = {Proc. of SPIE}, volume = {5306}, year = {2004}, month = {January}, pages = {805-815}, publisher = {SPIE}, organization = {SPIE}, address = {San Jose, California, USA}, keywords = {data-hiding, watermarking}, author = {F{\'e}lix Balado and Fernando P{\'e}rez-Gonz{\'a}lez and Pedro Comesa{\~n}a}, editor = {Edward J. Delp and Ping W. Wong} }