Very-High-Quality Image Compression Based on Noise Modeling

Fionn Murtagh, Jean Luc Starck, Mireille Louys

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

We present a new image compression method for very-high-quality lossy compression. This method caters for image data in regimes of (a) detector imperfections, which motivates a robust approach based on the median transform; and (b) noise, which is explicitly sought and separated out, since noise is inherently noncompressible. An in-depth assessment is carried out on real data, relative to the standard JPEG compression method. Comparable visual quality is based on 260:1 compression with the new method, and 40:1 compression with JPEG. The assessment procedure, based on the astronomical images used, is an objective approach for determining very-high-quality visual reconstructions.

Original languageEnglish
Pages (from-to)38-45
Number of pages8
JournalInternational Journal of Imaging Systems and Technology
Volume9
Issue number1
DOIs
Publication statusPublished - 7 Dec 1998
Externally publishedYes

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