On Perceptual Quality of Watermarked Images - An Experimental Approach. - Bassem Abdel-Aziz; Jean-Yves Chouinard (IWDW, 2003)

On the Limits of Second Generation Watermarks. - Bassem Abdel-Aziz; Jiying Zhao; Jean-Yves Chouinard (CRV, 2004)