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JEI
2010

Contrast image correction method

13 years 6 months ago
Contrast image correction method
A method for contrast enhancement is proposed. The algorithm is based on a local and image-dependent exponential correction. The technique aims to correct images that simultaneously present overexposed and underexposed regions. To prevent halo artifacts, the bilateral filter is used as the mask of the exponential correction. Depending on the characteristics of the image (piloted by histogram analysis), an automated parameter-tuning step is introduced, followed by stretching, clipping, and saturation preserving treatments. Comparisons with other contrast enhancement techniques are presented. The Mean Opinion Score (MOS) experiment on grayscale images gives the greatest preference score for our
Raimondo Schettini, Francesca Gasparini, Silvia Co
Added 19 May 2011
Updated 19 May 2011
Type Journal
Year 2010
Where JEI
Authors Raimondo Schettini, Francesca Gasparini, Silvia Corchs, Fabrizio Marini, Alessandro Capra, Alfio Castorina
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