TY - CONF T1 - Improved Binary Dither-Modulation with perceptual constraints T2 - International Workshop on Image Analysis for Multimedia Interactive Services (WIAMIS) Y1 - 2004 A1 - Fernando Pérez-González A1 - Pedro Comesaña KW - data-hiding KW - watermarking JF - International Workshop on Image Analysis for Multimedia Interactive Services (WIAMIS) CY - Lisboa, Portugal ER -