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Correction of underexposed images using scene radiance estimation
conference contribution
posted on 2004-04-18, 00:00 authored by Antonio Robles-KellyAntonio Robles-Kelly, Edwin R HancockIn this paper, we describe a method for correcting underexposed images by recovering the Lambertian-diffuse component in the scene. The method makes use of an implicit mapping between the objects in the scene and a unit sphere. As a result of this treatment, the scene radiance function can be represented by a polar function on the unit sphere. We pose the problem of recovering the scene radiance function as that of estimating a tabular representation of this polar function. We demonstrate how image gradient information can be used to perform the required mapping. With the mapping at hand, we generate an image corresponding to the diffuse component of the scene. The diffuse and input images are then blended in order to obtain the corrected image. We present results on images of real-world scenes.
History
Event
ICIP Image Processing. International Conference (2004 : Singapore, Singapore)Volume
5Pagination
1827 - 1830Publisher
Institute of Electrical and Electronics Engineers (IEEE)Location
Singapore, SingaporePlace of publication
Piscataway, N.J.Publisher DOI
Start date
2004-10-24End date
2004-10-27ISSN
1522-4880ISBN-10
0-7803-8554-3Language
engPublication classification
E1.1 Full written paper - refereedCopyright notice
2004, IEEETitle of proceedings
ICIP'04 : Proceedings of the 2004 International Conference on Image ProcessingUsage metrics
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