ARTHAN, N.; PANYINDEE, C. Removal of Periodic Noise in Digital Images Using an Improved Notch Filter. NKRAFA JOURNAL OF SCIENCE AND TECHNOLOGY, [S. l.], v. 22, n. 1, p. 83–100, 2026. Disponível em: https://ph02.tci-thaijo.org/index.php/nkrafa-sct/article/view/260219. Acesso em: 16 sep. 2026.