Emerging From Water: Underwater Image Color Correction Based on Weakly Supervised Color Transfer
TLDR
Wang et al. as discussed by the authors proposed a weakly supervised color transfer method to correct color distortion, which relaxes the need for paired underwater images for training and allows the underwater images being taken in unknown locations.Abstract:
Underwater vision suffers from severe effects due to selective attenuation and scattering when light propagates through water. Such degradation not only affects the quality of underwater images, but limits the ability of vision tasks. Different from existing methods that either ignore the wavelength dependence on the attenuation or assume a specific spectral profile, we tackle color distortion problem of underwater images from a new view. In this letter, we propose a weakly supervised color transfer method to correct color distortion. The proposed method relaxes the need for paired underwater images for training and allows the underwater images being taken in unknown locations. Inspired by cycle-consistent adversarial networks, we design a multiterm loss function including adversarial loss, cycle consistency loss, and structural similarity index measure loss, which makes the content and structure of the outputs same as the inputs, meanwhile the color is similar to the images that were taken without the water. Experiments on underwater images captured under diverse scenes show that our method produces visually pleasing results, even outperforms the state-of-the-art methods. Besides, our method can improve the performance of vision tasks.read more
Citations
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Underwater Single Image Color Restoration Using Haze-Lines and a New Quantitative Dataset
TL;DR: This work places multiple color charts in the scenes and calculated its 3D structure using stereo imaging to obtain ground truth, and contributes a dataset of 57 images taken in different locations that enables a rigorous quantitative evaluation of restoration algorithms on natural images for the first time.
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