Hybrid technique for improving underwater image

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Publicado en 3C Tecnología. Edición Especial/Special Issue – Noviembre/November 2021



As light attenuate when disseminating in water, descriptions confined beneath water is generally corrupted towards varying degrees. An acquired image underneath water gets degraded due to optical properties of light in water. First, we describe optical behaviour of light in ocean due to which acquired images gets degraded. However, due to degradation of observed picture, conventional forms are not correct enough for faithful reconstruction. So, to improve the perception, we intend a Non-Locally Centralized Method (NLCM) for deblurring underwater descriptions. Later by considering characteristic of light propagation, we propose Gradient Guided Filter (GGF) method for improving the visibility of picture details. Finally, the image is well enhanced by Hybrid technique called Non- locally centralized gradient guided filter (NLCM-GGF). Tentative outcome demonstrates that proposed technique produces improved results than several conventional techniques together in quality metrics and visual evaluation.


Palabras clave

Underwater Image Processing, Deblurring, Edge preserving filters.

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