MUSTAFA, Luqman Mohammed; HASAN, Harith Raad. A Novel Robust Approach of Optimized Hybrid Watermarking Scheme for Color Images Using DWT, DCT, Permutation, and PSO. Iraqi Journal of Science, [S. l.], v. 67, n. 5, p. 2975–2993, 2026. DOI: 10.24996/ijs.2026.67.5.38. Disponível em: https://www.ijs.uobaghdad.edu.iq/index.php/eijs/article/view/15152.. Acesso em: 20 jul. 2026.