1. Least squares quantization in PCM;Lloyd;IEEE Transactions on Information Theory,1982
2. Quantizing for minimum distortion;Max;IRE Transactions on Information Theory,1960
3. An algorithm for vector quantizer design;Linde;IEEE Transactions on Communications,1980
4. Vector Quantization and Signal Compression;Gersho,1992
5. Measurement of printer parameters for model-based halftoning;Pappas;Journal of Electronic Imaging,1993