A Triadic Approach for Enhancement of Underwater Images Using Adaptive Colour Correction with Unsharp Masking and CLAHE Implementation

Abstract: The underwater domain has distinct challenges for capturing and examining images both. This is due to absorption and dispersion of light, which diminishes visual clarity and also distorts colour. In this context, we present an extensive method for enhancing underwater images with the objective of restoring true colours, uplifting contrast, and emphasizing minute details. Adaptive colour correction, detail sharpening, and contrast enhancement techniques drafted for underwater environments are all included in our project. Using objective picture quality standards includes the Underwater Image Quality Measure (UIQM), Underwater Colour Image Quality Evaluation (UCIQE), Patch-based Contrast Quality Index (PCQI), and Image Entropy (IE), we evaluate the effectiveness of our technique. With latent uses in oceanology, archaeology, environmental impact analysis, underwater inspection, and photography, the results show significant evolution in visual accuracy and details extraction.