@article {uvigo:dctdomain, title = {DCT-Domain Watermarking Techniques for Still Images: Detector Performance Analysis and a New Structure}, journal = {IEEE Transactions on Image Processing}, volume = {9}, number = {1}, year = {2000}, note = {Special Issue on Image and Video Processing for Digital Libraries}, month = {January}, pages = {55{\textendash}68}, keywords = {data-hiding, watermarking}, author = {Juan R. Hern{\'a}ndez and Mart{\'\i}n Amado and Fernando P{\'e}rez-Gonz{\'a}lez} }