Hasib, Sultan Abdul, and Hussain Md Abu Nyeem. “Pixel Grouping of Digital Images for Reversible Data Hiding”. Acta Cybernetica 24, no. 4 (November 19, 2020): 663-678. Accessed December 3, 2024. https://cyber.bibl.u-szeged.hu/index.php/actcybern/article/view/4016.