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A Novel Underwater Image Restoration Algorithm

Volume 14, Number 7, July 2018, pp. 1513-1520
DOI: 10.23940/ijpe.18.07.p15.15131520

Yongxin Wanga,b and Ming Diaoa

aCollege of Information and Communication Engineering, Harbin Engineering University, Harbin, 150001, China
bThe Higher Educational Key Laboratory for Measuring & Control Technology and Instrumentations of Heilongjiang Province, Harbin University of Science and Technology, Harbin, 150080, China

(Submitted on March 19, 2018; Revised on May 4, 2018; Accepted on June 7, 2018)


This paper proposes a novel image restoration algorithm to eliminate light attenuation in underwater environments. The proposed algorithm employs the distance-dependent formation to model the degradation process where light travels in underwater. We use a homomorphic filter to get rid of the non-linear in the distance-dependent model. The restoration underwater image is then obtained by solving a Poisson equation that is derived based on the similar distance of neighbourhood pixels. The experiments show that the restoration image reveals improved contrast and clear details.


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