Robust Watermarking Based on the Warping of Pre-Defined Triangular Patterns - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2000

Robust Watermarking Based on the Warping of Pre-Defined Triangular Patterns

Résumé

Numerical information is volatile and watermarking is a solution to assist copyright protection. During the detection step, the synchronisation of the mark is a great problem. Geometric transformations can defeat the detector of the mark by desynchronising the mark. Our scheme is based on warping of pre-defined triangular patterns. The content of the image (feature points) is used to mark independently different regions. This allows the synchronisation of the mark for the detection step. Feature points mixed with a Delaunay tessellation permits to mark each triangle of the image. The detection is performed by warping triangle to a reference pattern and correlating with a reference triangle. Different algorithms have been developed in the spatial domain and in the frequential (DCT) domain. Our results show that our schemes are robust to Stirmark and other geometric transformations on different categories of images.
Fichier principal
Vignette du fichier
basEI00.pdf (3.44 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-00166552 , version 1 (07-08-2007)

Identifiants

  • HAL Id : hal-00166552 , version 1

Citer

Patrick Bas, Jean-Marc Chassery, B. Macq. Robust Watermarking Based on the Warping of Pre-Defined Triangular Patterns. SPIE Electronic Imaging, Security and Watermarking of Multimedia Content II, Jan 2000, San-Jose, United States. pp.99-109. ⟨hal-00166552⟩

Collections

UGA CNRS LIS
90 Consultations
104 Téléchargements

Partager

Gmail Facebook X LinkedIn More