PERBANDINGAN ALGORITMA CANNY EDGE DETECTION DAN PREWITT PADA DETEKSI STADIUM DIABETIK RETINOPATI. oai [Internet]. 2021 Sep. 2 [cited 2026 Oct. 8];9(02):87-94. Available from: https://ejournal.upbatam.ac.id/index.php/jif/article/view/3762