AL-SAFFAR, A. Remove regular noise from gray digital images using spatial filters. Journal of Education and Science (JES), [S. l.], v. 27, n. 1, p. 169–179, 2014. DOI: 10.33899/edusj.2014.162140. Disponível em: https://ojs.uomosul.edu.iq/index.php/edusj/article/view/23306. Acesso em: 6 aug. 2025.