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Theses

Transfert sécurisé d'Images par combinaison de techniques de compression, cryptage et de marquage

Abstract : The networks have been developing strongly these last years and became inevitable
for the modern communication. The images transmitted on these networks are particular
data because of their large quantity of information. The transmission of the images
thus raises a significant number of problems which the majority of them have no solution
yet. We enumerate for example safety, confidentiality, integrity and the authenticity of
these data during their transmission. Some medical applications require a strict association
between the image and its contextual data. The protection of high resolution
information (high frequencies of the images, details, scalable visualization) currently
has a high demand. During this thesis, our research led to the creation of three new
methods to make safe the transfer of images. The first two methods are based on hybrid
codings : use of encryption, data hidden and compression. The third approach is based
on the work of Droogenbroeck and Benedett. We propose selective encryption to protect
the transmission of images. It allows to selectively encrypt the image by protecting information
from high frequencies while remaining compatible according to the standards
of image compression.
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https://tel.archives-ouvertes.fr/tel-00115845
Contributor : José Marconi Rodrigues <>
Submitted on : Thursday, November 23, 2006 - 3:43:35 PM
Last modification on : Friday, May 17, 2019 - 11:37:17 AM
Long-term archiving on: : Thursday, September 20, 2012 - 2:56:16 PM

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José Marconi Rodrigues. Transfert sécurisé d'Images par combinaison de techniques de compression, cryptage et de marquage. Interface homme-machine [cs.HC]. Université Montpellier II - Sciences et Techniques du Languedoc, 2006. Français. ⟨tel-00115845⟩

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