UNDERWATER IMAGE ENHANCEMENT: A REVIEW
Prakhar Prakash, N. Jayanthi, Vyom Garg, Srijan Saxena · Journal of Emerging Technologies and Innovative Research · 2019
This paper has been written with the objective of studying and understanding the most recent developments in the field of enhancement of underwater imaging. Enhancement of underwater images is essential for inspection of underwater infrastructure and detection of many man-made objects. The need for enhancement is also to understand marine biology, and for environmental evaluation. It also finds application in the research of monuments submerged in water. Underwater navigational monitoring in submarines largely depends on the quality of underwater images. This article recapitulates major points of the different methods used for the enhancement of images clicked underwater. These images suffer from severe degradation in the form of low resolution, color cast, color scatter, crinkle pattern, uneven light distribution. The techniques reviewed include integrated color model, Modeled PSF’s, GWAC, WCID, color balance and fusion, White balancing and Rayleigh stretching.