BALAKRISHNAN, S. Security Enhancement in Image Watermarking Using Combined Medium Sub-Band Wavelet Approach for Copyright Protection. Proceedings of Engineering and Technology Innovation, [S. l.], v. 18, p. 36–42, 2021. DOI: 10.46604/peti.2021.5316. Disponível em: https://ojs.imeti.org/index.php/PETI/article/view/5316. Acesso em: 24 apr. 2024.