On the Image Watermarking Techniques Applications, Properties and fields

Msalim Bouhlel (1), Mohamed; Trlchlll, Hanène; Derbel, Nabil; Eamonn, Lotji

RIST
Volume 12, Numéro 2, Pages 39-59
2002-10-08

On The Image Watermarking Techniques Applications, Properties And Fields

Authors : Msalim Bouhlel (1) Mohamed . Trlchlll Hanène . Derbel Nabil . Eamonn Lotji .

Abstract

The growth of networked multimedia systems has magnified the need forimage copyright protection. One approach used to address this problem is to add an invisible structure to an image that can be used toseal or mark it ['1]. These structures are known as digital watermarks. In fact, asthe increasing of the electronic publishing, the data distribution is becomingfaster, and require less attempt to be copied. One of the major challenges isthat of discouraging il/egal copying. In order to trace the iIIicit copies, it hasbeen suggested to mark the image with a signature or copyright message.Such message must be secretly embedded and the difference between the coded image and the original one could be indistinguishable.Besides, a robust signature coding approach should survive several possible attacks [2-41, such as image processing, lossy image compression... In thispaper, we present an overview about image watermarking in erms ofapplications, and properties. We will try, after that. to present the most usedwatermarking insertion domain and to evaluate them. This study will concernspatial, frequency and wavelet domain.