Dr. Ajay Goel, O.P.Sahu, Sheifali Gupta, & Rupesh Gupta. (2010). AN IMPROVED SCHEME FOR DIGITAL WATERMARKING BASED ON DISCRETE COSINE TRANSFORMATIONS. Global Journal of Science Frontier Research, 10(2), -. Retrieved from https://journalofscience.org/index.php/GJSFR/article/view/30