ElBireki, M. F. M. ., Ukasha, A. A. M. ., Dofan, J. A. R., & Abdullah, M. F. L. . (2021). Enhanced Dct Image Watermarking Scheme Based on Zonal Sampling Algorithm Applied With Sspce Contour Extraction, Ramer and Adaptive Triangle Contour Compression Methods. Conference On Engineering Science and Technology, 6(5، مجلة الجامعة الأسمرية), 877-858. https://conf.asmarya.edu.ly/index.php/cest2021/article/view/163