., N.; SINGH, S. Embedding and Extracting a Watermark in an Image using DCT. The International Journal of Science & Technoledge, [S. l.], v. 3, n. 7, 2015. Disponível em: http://internationaljournalcorner.com/index.php/theijst/article/view/124509. Acesso em: 7 jul. 2024.