Single underwater image descattering and color correction
Huimin Lu, Yujie Li, Seiichi Serikawa
Abstract
Absorption, scattering, and color distortion are three major issues in underwater optical imaging. Light rays traveling through water are scattered and absorbed according to their wavelength. Scattering is caused by large suspended particles that degrade optical images captured underwater. Color distortion occurs because different wavelengths are attenuated to different degrees in water; consequently, images of ambient underwater environments are dominated by a bluish tone. In the present paper, we propose a novel underwater imaging model that compensates for the attenuation discrepancy along the propagation path. In addition, we develop a fast weighted guided normalized convolution domain filtering algorithm for enhancing underwater optical images in shallow oceans. The enhanced images are characterized by a reduced noised level, better exposure in dark regions, and improved global contrast, by which the finest details and edges are enhanced significantly.
BibTeX
@inproceedings{icassp2015_singleunderwater,
title = {Single underwater image descattering and color correction},
author = {Huimin Lu and Yujie Li and Seiichi Serikawa},
booktitle = {ICASSP 2015},
year = {2015}
}