KHAN, Muhammad Farhan; GHAZANFAR MONIR, Syed Muhammad; NASEEM, Imran. A Novel Zero-Watermarking Based Scheme for Copyright Protection of Grayscale Images. Mehran University Research Journal of Engineering and Technology, [S.l.], v. 38, n. 3, p. 627-640, july 2019. ISSN 2413-7219. Available at: <https://publications.muet.edu.pk/index.php/muetrj/article/view/1133>. Date accessed: 23 nov. 2024. doi: http://dx.doi.org/10.22581/muet1982.1903.09.