Effective Image Watermarking Method Based on DCT. Iraqi Journal of Science, [S. l.], v. 56, n. 3B, p. 2374–2379, 2023. DOI: 10.24996/ijs.2015.56.3B.%g. Disponível em: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/9874.. Acesso em: 20 dec. 2024.