Elements of adaptive wavelet image compression
Richard D. Forkert · 2002
The adaptive wavelet image compression (AWIC) algorithm is a fast, simple wavelet-based image compression technique that follows the classical paradigm of image transformation, quantization, and entropy encoding. A key component of AWIC is a technique of channel symbol definition that provides greatly reduced Huffman table encoding costs, allowing optimal Huffman codewords to be generated and used for each level of the wavelet transformed image. Further optimizations for compression performance were achieved through empirical studies.