Al-Ashwal, A.Y., Al-Mawgani, A.H.M. and Al-Arashi, W.H. 2015. An Image Steganography Algorithm for Hiding Data Based on HDWT, LZW and OPAP. Journal of Science and Technology. 20, 1 (Sep. 2015), 9–21. DOI:https://doi.org/10.20428/jst.v20i1.840.