Primitive-based contrast enhancement method

Francis N. Labaere; Pieter Vuylsteke; Patrick Wambacq; Emile P. Schoeters; Christiaan M. Fivez

doi:10.1117/12.237987

16 April 1996 Primitive-based contrast enhancement method

Francis N. Labaere, Pieter Vuylsteke, Patrick Wambacq, Emile P. Schoeters, Christiaan M. Fivez

Proceedings Volume 2710, Medical Imaging 1996: Image Processing; (1996) https://doi.org/10.1117/12.237987
Event: Medical Imaging 1996, 1996, Newport Beach, CA, United States

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.

Citation Download Citation

Francis N. Labaere, Pieter Vuylsteke, Patrick Wambacq, Emile P. Schoeters, and Christiaan M. Fivez "Primitive-based contrast enhancement method", Proc. SPIE 2710, Medical Imaging 1996: Image Processing, (16 April 1996); https://doi.org/10.1117/12.237987

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