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Proceedings Paper

Primitive-based contrast enhancement method
Author(s): Francis N. Labaere; Pieter Vuylsteke; Patrick Wambacq; Emile P. Schoeters; Christiaan M. Fivez
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Paper Abstract

In this article we present a new solution for the problem of contrast enhancement. The method is based on the decomposition of the original image into its primitive components. In a first stage a multiresolution representation of the image is computed yielding transform coefficients proportional to the maximum of the local gradient at a specific scale and at a specific position in the image. As an image detail exists at several scales, the transform coefficients corresponding to the same image primitive are grouped. Contrast is enhanced by groupwise non-linear amplification of the transform coefficients. An inverse transform is then applied to the modified coefficients, resulting in a uniformly contrast-enhanced image without artifacts. Preliminary results demonstrate the effectiveness of this method. It could be used in a wide range of applications.

Paper Details

Date Published: 16 April 1996
PDF: 10 pages
Proc. SPIE 2710, Medical Imaging 1996: Image Processing, (16 April 1996); doi: 10.1117/12.237987
Show Author Affiliations
Francis N. Labaere, Katholieke Univ. Leuven (Belgium)
Pieter Vuylsteke, Agfa-Gevaert NV (Belgium)
Patrick Wambacq, Katholieke Univ. Leuven (Belgium)
Emile P. Schoeters, Agfa-Gevaert NV (Belgium)
Christiaan M. Fivez, Univ. Ziekenhuis Gasthuisberg (Belgium)

Published in SPIE Proceedings Vol. 2710:
Medical Imaging 1996: Image Processing
Murray H. Loew; Kenneth M. Hanson, Editor(s)

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