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Proceedings Paper

Tuning of JPEG quantization matrices for x-ray images
Author(s): Anthony John Maeder
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Paper Abstract

A variation is considered to the way in which the JPEG standard lossy image compression technique is applied, which allows different DCT block coding characteristics to be chosen for sets of blocks. This allows an appropriate level of fidelity to be achieved in the reconstructed image at particular locations, rather than merely establishing a fidelity bound. Texture information derived from the DCT coefficient values is used to distinguish block classes for which tuned quantization matrices are provided. Effectiveness of the technique is assessed for a set of standard NIH x-ray images.

Paper Details

Date Published: 7 May 1997
PDF: 7 pages
Proc. SPIE 3031, Medical Imaging 1997: Image Display, (7 May 1997); doi: 10.1117/12.273913
Show Author Affiliations
Anthony John Maeder, Univ. of Ballarat (Australia)


Published in SPIE Proceedings Vol. 3031:
Medical Imaging 1997: Image Display
Yongmin Kim, Editor(s)

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