@conference {icip07pedro, title = {On a watermarking scheme in the logarithmic domain and its perceptual advantages}, booktitle = {IEEE International Conference on Image Processing (ICIP)}, year = {2007}, month = {September}, pages = {1261-1264}, address = {San Antonio, TX, USA}, keywords = {data-hiding, watermarking}, author = {Pedro Comesa{\~n}a and Fernando P{\'e}rez-Gonz{\'a}lez} }