@article {spl06:cropping, title = {The impact of the cropping attack on scalar STDM data hiding}, journal = {IEEE Signal Processing Letters}, volume = {13}, number = {6}, year = {2006}, note = {To appear}, month = {June}, pages = {353-356}, keywords = {data-hiding, watermarking}, author = {Pedro Comesa{\~n}a and Fernando P{\'e}rez-Gonz{\'a}lez} }