MAHESWARI, S. U.; HEMANTH, D. J. Image Steganography using Hybrid Edge Detector and Ridgelet Transform. Defence Science Journal, [S. l.], v. 65, n. 3, p. 214–219, 2015. DOI: 10.14429/dsj.65.7871. Disponível em: https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/7871. Acesso em: 15 jun. 2025.