Salsabilla, Nur, Achmad Fauzi, and I Gusti Prahmana. “Improving the Quality of Digital Images on Identity Cards Using Contrast Stretching and Retinex Methods”. Journal of Artificial Intelligence and Engineering Applications (JAIEA) 4, no. 1 (October 15, 2024): 404–410. Accessed April 17, 2026. https://www.ioinformatic.org/index.php/JAIEA/article/view/645.