Implementation of Coffee Bean Roasting Level Classification System Using CNN and Knn Models with Web-Based Real-Time Camera. HORIZON: Indonesian Journal of Multidisciplinary, [S. l.], v. 4, n. 3, p. 3040–3061, 2026. DOI: 10.54373/hijm.v4i3.6545. Disponível em: https://ejournal.indo-intellectual.id/index.php/hijm/article/view/6545. Acesso em: 12 aug. 2026.