Mr. K. Venu Gopal, Dr. G. Lavanya Devi. 2020. “A Novel Watermarking Approach for Multiple Layer Embedding the Half Toned QR Code into the Frames of a Video”. International Journal of Advanced Science and Technology 29 (05), 9429-34. http://sersc.org/journals/index.php/IJAST/article/view/19038.