Low Cost Watermarking Based on a Human Vision Model. - Jean-François Delaigle; Christophe De Vleeschouwer; Francois Goffin; Benoît Macq; Jean-Jacques Quisquater (ECMAST, 1997)

Low-Cost Perceptive Digital Picture Watermarking Method. - Francois Goffin; Jean-François Delaigle; Christophe De Vleeschouwer; Benoît Macq; Jean-Jacques Quisquater (Storage and Retrieval for Image and Video Databases (SPIE), 1997)