Nasution, M. F. M., K. Nasution, and T. Haramaini. “IMPLEMENTATION OF DCT (DISCRETE COSINE TRANSFORM) AND MEDIAN CUT ALGORITHMS FOR CONVERTING JPG IMAGE FILES INTO GIF FORMAT”. JICDA: Journal of Informatics, Computer Science, Data Science And Artificial Intelligence, vol. 4, no. 1, June 2026, https://publication.arstech.co.id/index.php/JICDA/article/view/94.