PERBANDINGAN KUALITAS CITRA GRAYSCALE STEGANOGRAFI METODE LSB DAN DCT BERDASARKAN PSNR DAN SSIM. JOISM [Internet]. 2026 Jan. 31 [cited 2026 Feb. 4];7(2):330-7. Available from: https://jurnal.amikom.ac.id/index.php/joism/article/view/2492