TY - CONF T1 - Novel Detector Structures for Watermark Extraction in the DCT Domain T2 - Workshop on Nonlinear Signal and Image Processing Y1 - 1999 A1 - Juan R. Hernández A1 - Martín Amado A1 - Fernando Pérez-González KW - data-hiding KW - watermarking JF - Workshop on Nonlinear Signal and Image Processing PB - IEEE-EURASIP CY - Antalya, Turkey ER -