A Contrast-Guided Approach for the Enhancement of Low-Lighting Underwater Images.

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Date
2019Author
Marques, Tunai Porto
Branzan Albu, Alexandra
Hoeberechts, Maia
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Show full item recordAbstract
Underwater images are often acquired in sub-optimal lighting conditions, in particular
at profound depths where the absence of natural light demands the use of artificial lighting.
Low-lighting images impose a challenge for both manual and automated analysis, since regions of
interest can have low visibility. A new framework capable of significantly enhancing these images
is proposed in this article. The framework is based on a novel dehazing mechanism that considers
local contrast information in the input images, and offers a solution to three common disadvantages
of current single image dehazing methods: oversaturation of radiance, lack of scale-invariance and
creation of halos. A novel low-lighting underwater image dataset, OceanDark, is introduced to
assist in the development and evaluation of the proposed framework. Experimental results and a
comparison with other underwater-specific image enhancement methods show that the proposed
framework can be used for significantly.....
Resource URL
https://www.mdpi.com/2313-433X/5/10/79Journal
Journal of ImagingVolume
5Issue
Article 79Page Range
24pp/Document Language
enSustainable Development Goals (SDG)
14.aMaturity Level
Pilot or DemonstratedDOI Original
https://doi.org/10.3390/jimaging5100079Citation
Marques, T.P., Branzan Albu, A., and Hoeberechts, M. (2019) A Contrast-Guided Approach for the Enhancement of Low-Lighting Underwater Images. Journal of Imaging, 5(10):79, 24pp. DOI: https://doi.org/10.3390/jimaging5100079Collections
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