0000000001172860
AUTHOR
Abdellatif Mtibaa
showing 4 related works from this author
A new system for watermarking based on the turbo-codes and wavelet 5/3
2012
International audience; In order to contribute to the security, transmission and sharing of medical data between hospital centers, we propose a watermarking scheme for hiding medical information, specific to the patient, in the host image. In this regard, the watermark consists of inserting data (usually binary data) in media (image in our case) and try to find these data with maximum fidelity, after applying various attacks. The principal goal of our proposal is the conservation of psychovisual quality of the image, on the one hand, and the extraction of the different data inserted in another side The robustness of the proposed scheme is tested against various attacks such as JPEG compress…
Méthode de "Multicouches" Pour le Tatouage des Images Médicales
2012
International audience; Dans le but de contribuer á la sécurité du partage, au transfert et á l'indexation des images médicales, on a mis en œuvre une nouvelle approche de tatouage. Cette approche se base sur l'utilisation de diverses techniques tels que la technique du Code Division Multiple Access (CDMA), de la Transformation en Ondelette Discrète (TOD), des Codes Correcteurs d'Erreurs (CCE) et de la fonction de hachage (MD5),... Le but de notre contribution étant d'augmenter le taux d'intégration tout en conservant l'aspect visuel de l'image d'une part et de détecter et même corriger les différentes altérations qui peuvent avoir lieu de l'autre part. Cette approche sera testé sur des ima…
"Last Signification Bits" Method for Watermarking of Medical Image
2011
International audience; In this paper, we present a new approach for watermarking of medical image that we are trying to adapt to telemedicine. This approach is intended to insert a set of data in a medical image. These data should be imperceptible and robust to various attacks. It's containing the signature of the original image, the data specific to the patient and his diagnostic. The purpose of the watermarking method is to check the integrity and preservation of the confidentiality of patient data in a network sharing. This approach is based on the use the LSB (least significant bits) of the image and tools borrowed from cryptography.
A Digital Watermarking Algorithm Based on DCT: Application on Medical Image
2012
International audience; This work is a presentation of a new approach of robust watermarking applied in medical domain such as telemedicine hence the need to keep the visual aspect of medical images and other conservation of the various data substituted. For hiding information, the proposed method uses the Discrete Cosine Transform (DCT) space. To control identification and eventually the correction (if possible) of the data inserted, it should be noted that we used the series turbocode to recover the data inserted and after application of several attacks.