Prima Selvia Megawati, M. Choiroel Anwar, Fatimah, Sudiyono, Darmini, and Saifudin, “EFFECTIVENESS EDGE DETECTION OPERATOR CANNY TO IMPROVE IMAGE QUALITY THORAX CT SCAN IN CASES COVID-19”, J Vocat Heal Stud, vol. 7, no. 2, pp. 77–82, Nov. 2023.