Huda Farag Alspihe, Amira Alsaid Hashem, & Hala Ail Shelo. (2025). Enhancement of Digital Images Using Discrete Cosine Transform (DCT): Quality Analysis Based on PSNR and SSIM Metrics. مجلة شمال إفريقيا للنشر العلمي (NAJSP), 3(3), 236–242. استرجع في من https://najsp.com/index.php/home/article/view/576