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Crypto-Compression d'Images Médicales par Cryptage Partiel des Coefficients DCT

William Puech 1 José Marconi Rodrigues 2
1 ICAR - Image & Interaction
LIRMM - Laboratoire d'Informatique de Robotique et de Microélectronique de Montpellier
Abstract : The traffic of digital images has increased rapidly in the Internet. Security of image becomes important for many sectors mainly for medical applications. Nowadays, the transmission of medical images is a daily routine, especially over wireless (battlefields, traffic accidents, etc). Partial encryption is an approach to reduce the computational resources for huge volumes of multimedia data in low power network. This paper presents a method of partial or selective encryption for JPEG images. It is based on encryption of the quantified DCT coefficients . The purposed method results in a significant reduction in encryption and decryption processing time. It is fast and does not reduce the compression performance of the JPEG algorithm.
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https://hal-lirmm.ccsd.cnrs.fr/lirmm-00106477
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Submitted on : Monday, October 16, 2006 - 8:29:36 AM
Last modification on : Thursday, May 24, 2018 - 3:59:23 PM
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William Puech, José Marconi Rodrigues. Crypto-Compression d'Images Médicales par Cryptage Partiel des Coefficients DCT. JSTIM: Journées SciencesTechnologies et Imagerie pour la Médecine, Mar 2005, Nancy (France), pp.149-150. ⟨lirmm-00106477⟩

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