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Proceedings Paper

Adaptive contrast enhancement for underexposed images
Author(s): Silvia Corchs; Francesca Gasparini; Raimondo Schettini
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Paper Abstract

In the present article we focus on enhancing the contrast of images with low illumination that present large underexposed regions. For these particular images, when applying the standard contrast enhancement techniques, we also introduce noise over-enhancement within the darker regions. Even if both the contrast enhancement and denoising problems have been widely addressed within the literature, these two processing steps are, in general, independently considered in the processing pipeline. The goal of this work is to integrate contrast enhancement and denoise algorithms to proper enhance the above described type of images. The method has been applied to a proper database of underexposed images. Our results have been qualitatively compared before and after applying the proposed algorithm.

Paper Details

Date Published: 24 January 2011
PDF: 9 pages
Proc. SPIE 7876, Digital Photography VII, 78760X (24 January 2011); doi: 10.1117/12.872341
Show Author Affiliations
Silvia Corchs, Univ. of Milano-Bicocca (Italy)
Francesca Gasparini, Univ. of Milano-Bicocca (Italy)
Raimondo Schettini, Univ. of Milano-Bicocca (Italy)


Published in SPIE Proceedings Vol. 7876:
Digital Photography VII
Francisco H. Imai; Feng Xiao, Editor(s)

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