Jiji, Chrispin, and Nagaraj Ramrao. “An Underwater Image Enhancement via Wavelet Domain Gradient Guided Filter”. International Journal of Engineering and Technology 7, no. 4.38 (December 3, 2018): 944–949. Accessed April 6, 2025. https://sciencepubco.com/index.php/IJET/article/view/27614.