Simangunsong PBN, Andriani T, Sirait MJF. Gradient Magnitude Based Image Classification and Edge Detection for Pattern Recognition in Grayscale Images. CNAHPC [Internet]. 2024 Oct. 11 [cited 2026 Sep. 4];6(4):1729-35. Available from: https://itscience-indexing.com/jurnal/index.php/CNAPC/article/view/4611