Fragile digital watermarking by synthetic holograms

Giuseppe Schirripa Spagnolo; Carla Simonetti; Lorenzo Cozzella

doi:10.1117/12.578215

29 December 2004 Fragile digital watermarking by synthetic holograms

Giuseppe Schirripa Spagnolo, Carla Simonetti, Lorenzo Cozzella

Proceedings Volume 5615, Technologies for Optical Countermeasures; (2004) https://doi.org/10.1117/12.578215
Event: European Symposium on Optics and Photonics for Defence and Security, 2004, London, United Kingdom

Abstract

In this article is presented an application of synthetic hologram as fragile watermarking. The proposed technique is a frequency domain watermarking, based on computer generated hologram. Our technique, named Fragile Synthetic Holographic Watermarking (F-SHW), is suitable for ID Cart image authentication. In this paper, the F-SHW is applied to Color Images as well as to Gray Scale ones. The proposed schema is based on the knowledge of original mark from the Authentication Entity, for applying Image Correlation between this and the extracted one. Due to the application the mark is encrypted using a private key (symmetric schema).

Citation Download Citation

Giuseppe Schirripa Spagnolo, Carla Simonetti, and Lorenzo Cozzella "Fragile digital watermarking by synthetic holograms", Proc. SPIE 5615, Technologies for Optical Countermeasures, (29 December 2004); https://doi.org/10.1117/12.578215

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