Kulkarni, Rohit, Vibhav Shrivatsa Dinesh, R. Bhagya, and R. Bharathi. 2021. “Difference Expansion Based Reversible Data Hiding Scheme for Watermarking”. International Journal of Research in Engineering, Science and Management 4 (6): 193-95. https://journal.ijresm.com/index.php/ijresm/article/view/873.