Josep Domingo-Ferrer, Francesc Sebé. Invertible Spread-Spectrum Watermarking for Image Authentication and Multilevel Access to Precision-Critical Watermarked Images. In 2002 International Symposium on Information Technology (ITCC 2002), 8-10 April 2002, Las Vegas, NV, USA. pages 152-157, IEEE Computer Society, 2002. [doi]
Abstract is missing.