Crypto-Compression d'Images Médicales par Cryptage Partiel des Coefficients DCT - LIRMM - Laboratoire d’Informatique, de Robotique et de Microélectronique de Montpellier Access content directly
Conference Papers Year : 2005

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

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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Dates and versions

lirmm-00106477 , version 1 (16-10-2006)

Identifiers

  • HAL Id : lirmm-00106477 , version 1

Cite

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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