Edge Detection to Indication Brain Tumor Using Sobel and Morphological Operations Methods Based on Image Magnetic Resonance Imaging. Com, Engine, Sys, Sci [Internet]. 1 Agustus 2018 [dikutip 30 Agustus 2026];3(2):179-85. Tersedia pada: https://jurnal.unimed.ac.id/2012/index.php/cess/article/view/10024