Wiranata JF, Pudjaprasetya SR, Putri PE, Kurniawan R. FFT-based watermarking for copyright protection of color image. jamm [Internet]. 2025 May 10 [cited 2025 Aug. 9];1(1):1-10. Available from: https://ejournal.cibnusantara.org/index.php/jamm/article/view/1