Image contrast enhancement via entropy production

Authors:
Mario Ferraro;Giuseppe Boccignone
Affiliations:
Dipartimento di Fisica Sperimentale, Universití di Torino and INFM, via Giuria 1, 10125 Torino, Italy;Dipartimento di Ingegneria dell'Informazione e Ingegneria Elettrica, Universití di Salerno and INFM, via Melillo 1, 84084 Fisciano (SA), Italy
Venue:
Real-Time Imaging - Special issue on imaging in bioinformatics: Part III
Year:
2004

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Abstract

In this paper a novel approach for image contrast enhancement is proposed. Employing a thermodynamical model to define local information content, the method derives a measure of local contrast which takes into account spatial structure across multiple scales. From this measure a local contrast map is computed, which is then applied to the image, giving rise to a selective enhancement of the original image. Here some applications to medical images will be presented as well as a comparison with other methods.