Anam S, Fitriah Z, Shofianah N, Bagus Edy Wibowo R. Fundus image enhancement using white top hat operation and perona-malik diffusion filter. IJET [Internet]. 2019 Apr. 21 [cited 2024 May 6];7(4):5758-66. Available from: https://www.sciencepubco.com/index.php/ijet/article/view/18769