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Proceedings Paper

Adaptive contrast enhancement by a Gaussian function of local standard deviation
Author(s): Feng Zhang; Dazong Jiang
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Paper Abstract

In this paper, we present an adaptive contrast enhancement (ACE) method in which the contrast gain is determined by mapping the local standard deviation (LSD) histogram of an image to a Gaussian distribution function. The contrast gain is nonlinearly adjusted to avoid noise overenhancement and ringing artifacts while improving the detail contrast with less computational loading. The effectiveness of our method is demonstrated with radiological images.

Paper Details

Date Published: 20 September 2001
PDF: 5 pages
Proc. SPIE 4552, Image Matching and Analysis, (20 September 2001); doi: 10.1117/12.441512
Show Author Affiliations
Feng Zhang, Xi'an Jiao Tong Univ. (China)
Dazong Jiang, Xi'an Jiao Tong Univ. (China)

Published in SPIE Proceedings Vol. 4552:
Image Matching and Analysis

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