Analysis of the robustness of wavelet-based perceptual signatures. - Azhar Hadmi; William Puech; Brahim Ait Es Said; Abdellah Ait Ouahman (IPTA, 2010)

Statistical analysis of the quantization stage of robust perceptual image hashing. - Azhar Hadmi; William Puech; Brahim Ait Es Said; Abdellah Ait Ouahman (EUVIP, 2011)

A robust and secure perceptual hashing system based on a quantization step analysis. - Azhar Hadmi; William Puech; Brahim Ait Es Said; Abdellah Ait Ouahman (Signal Process. Image Commun., 2013)