OVERBEEK, M. V. HISTOGRAM OF ORIENTED GRADIENT UNTUK DETEKSI EKSPRESI WAJAH MANUSIA. HOAQ (High Education of Organization Archive Quality) : Jurnal Teknologi Informasi , [S. l.], v. 10, n. 2, p. 81–86, 2018. DOI: 10.52972/hoaq.vol10no2.p81-86. Disponível em: https://publikasi.uyelindo.ac.id/index.php/hoaq/article/view/21. Acesso em: 16 may. 2026.