Radha Kumari R, Vijaya Kumar V, Rama Naidu K. Optimized DWT Based Digital Image Watermarking and Extraction Using RNN-LSTM. IJIMAI [Internet]. 2021 Dec. 1 [cited 2025 Aug. 3];7(2):150-62. Available from: https://revistas.unir.net/index.php/ijimai/article/view/635