CODING METHOD, DECODING METHOD, CODING DEVICE AND DECODING DEVICE

摘要

Prediction values corresponding to state numbers are predetermined on an MPS table (49), and a state number for a notable pixel is found from a STATE table (47). Using the state number thus found, a prediction value is determined from the MPS table (49). A pixel symbol converter (16) compares the prediction value with the notable pixel to find a symbol, and finds an LPS area from an LSZ table (12), using the state number for the notable pixel. An arithmetic coder (19) carries out coding in accordance with the symbol and the LPS area.