JALAL YOUSIF, Adel. A DISCRETE COSINE TRANSFORM BASED WATERMARKING SCHEME FOR COLOR IMAGE USING YCbCr SPACE. Journal of Engineering and Sustainable Development, Baghdad, Iraq, v. 22, n. 6, p. 1–12, 2018. Disponível em: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/339.. Acesso em: 4 jun. 2026.