RUTUL PATEL; JAYESH DIWAN. Improved Compression ratio for Image Signal using First Order Differential Huffman Coding. International Journal of Advance Research in Engineering, Science & Technology, [S. l.], v. 3, n. 6, p. 370–374, 2016. Disponível em: https://ijarest.org/index.php/ijarest/article/view/846. Acesso em: 21 oct. 2025.