Korudu Surekha, Archek Praveen Kumar, Chekuri Mahesh, Madgula Mahesh, Yeramala Kalavathi. Digital Image Watermarking Using RDWT with SVD and Firefly Algorithms. IJAST [Internet]. 2020May28 [cited 2024May2];29(05):9246-50. Available from: http://sersc.org/journals/index.php/IJAST/article/view/19007