Muhammad Khairi A Razak, Kamilah Abdullah, and Suhaila Abd Halim. “Non-Blind Image Watermarking Algorithm Based on Non-Separable Haar Wavelet Transform Against Image Processing and Geometric Attacks”. Journal of Advanced Research in Applied Sciences and Engineering Technology 29, no. 2 (January 18, 2023): 251–267. Accessed May 4, 2024. https://semarakilmu.com.my/journals/index.php/applied_sciences_eng_tech/article/view/1019.