Sureshkumar T, Kavitha V, Palanisamy C,. “SWT - SPIHT - NVF Based Blind Medical Image Watermarking”. International Journal of Advanced Science and Technology 29, no. 5s (March 28, 2020): 201 - 212. Accessed April 25, 2024. http://sersc.org/journals/index.php/IJAST/article/view/7073.