adaptive Huffman coding is designed to compress the generated labels in order to reduce the embedding length of the auxiliary information used for the extraction and recovery. Experiments show that the proposed method with MED+GAP predictor and adaptive Huffman coding improves 0.052 bpp, 0.023 bpp, ...
Huffman method), selective Huffman coding [16,17,18] (where only the most frequently occurring binary sequences are encoded with the Huffman method), and the dual-tree based approach [19,20] (the apt combination of Tunstall and Huffman coding, which improves the efficiency of the second one...