Underwater Image Enhancement via Medium Transmission-Guided Multi-Color Space Embedding

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

267 Scopus Citations
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Author(s)

  • Chongyi Li
  • Saeed Anwar
  • Runmin Cong
  • Chunle Guo
  • Wenqi Ren

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)4985-5000
Journal / PublicationIEEE Transactions on Image Processing
Volume30
Online published7 May 2021
Publication statusPublished - 2021

Abstract

Underwater images suffer from color casts and low contrast due to wavelength- and distance-dependent attenuation and scattering. To solve these two degradation issues, we present an underwater image enhancement network via medium transmission-guided multi-color space embedding, called Ucolor. Concretely, we first propose a multi-color space encoder network, which enriches the diversity of feature representations by incorporating the characteristics of different color spaces into a unified structure. Coupled with an attention mechanism, the most discriminative features extracted from multiple color spaces are adaptively integrated and highlighted. Inspired by underwater imaging physical models, we design a medium transmission (indicating the percentage of the scene radiance reaching the camera)-guided decoder network to enhance the response of network towards quality-degraded regions. As a result, our network can effectively improve the visual quality of underwater images by exploiting multiple color spaces embedding and the advantages of both physical model-based and learning-based methods. Extensive experiments demonstrate that our Ucolor achieves superior performance against state-of-the-art methods in terms of both visual quality and quantitative metrics. The code is publicly available at: https://li-chongyi.github.io/Proj_Ucolor.html.

Research Area(s)

  • underwater imaging, image enhancement, color correction, scattering removal

Citation Format(s)

Underwater Image Enhancement via Medium Transmission-Guided Multi-Color Space Embedding. / Li, Chongyi; Anwar, Saeed; Hou, Junhui et al.
In: IEEE Transactions on Image Processing, Vol. 30, 2021, p. 4985-5000.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review