Publication

Securing JPEG 2000 compressed images

Touradj Ebrahimi
2003
Conference Papers

Abstract

The Joint Photographic Experts Group (JPEG) has recently rolled out a new still image coding standard called JPEG 2000. This standard integrates an efficient image compression scheme along with functionalities required by multimedia applications, such as progressiveness up to lossless coding, region of interest coding, and error resiliency. Security is a concern in many applications, and therefore a highly desired functionality. For this reason, JPEG recently initiated an activity known as secure JPEG 2000 (JPSEC) in order to provide a standardized framework for secure imaging. This paper presents some insights on the current status of the JPSEC activities. We also provide examples of how to combine security solutions with JPEG 2000 compression. More specifically, tools for JPEG 2000 compressed image integrity, access control, and copyright protection are presented. They can be either applied to a JPEG 2000 codestream or directly integrated into the coding/decoding operations. In all cases, they result in a fully compliant JPEG 2000 image.

Official source

https://infoscience.epfl.ch/entities/publication/c5edcc76-9da0-4dab-b8c5-755e051a7559

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Touradj Ebrahimi
2003
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/c5edcc76-9da0-4dab-b8c5-755e051a7559

About this result

Related concepts (32)

JPEG

JPEG (ˈdʒeɪpɛɡ , short for Joint Photographic Experts Group) is a commonly used method of lossy compression for s, particularly for those images produced by digital photography. The degree of compression can be adjusted, allowing a selectable tradeoff between storage size and . JPEG typically achieves 10:1 compression with little perceptible loss in image quality. Since its introduction in 1992, JPEG has been the most widely used standard in the world, and the most widely used digital , with several billion JPEG images produced every day as of 2015.

JPEG 2000

JPEG 2000 (JP2) is an standard and coding system. It was developed from 1997 to 2000 by a Joint Photographic Experts Group committee chaired by Touradj Ebrahimi (later the JPEG president), with the intention of superseding their original JPEG standard (created in 1992), which is based on a discrete cosine transform (DCT), with a newly designed, wavelet-based method. The standardized is .jp2 for ISO/IEC 15444-1 conforming files and .jpx for the extended part-2 specifications, published as ISO/IEC 15444-2.

Lossless JPEG

Lossless JPEG is a 1993 addition to JPEG standard by the Joint Photographic Experts Group to enable lossless compression. However, the term may also be used to refer to all lossless compression schemes developed by the group, including JPEG 2000 and JPEG-LS. Lossless JPEG was developed as a late addition to JPEG in 1993, using a completely different technique from the lossy JPEG standard. It uses a predictive scheme based on the three nearest (causal) neighbors (upper, left, and upper-left), and entropy coding is used on the prediction error.

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