Patent ID: 6956974

Claim:
An image coding device comprising: a tile decomposition portion for decomposing image data into tiles each of N pixels×M pixels and outputting the N×M pixels in the tile as an objective data to be coded for a corresponding each of the tiles; an adjacent pixel adding portion for providing a objective tile to be coded with adjacent pixels necessary for wavelet transformation of the objective tile when such pixels exist at the periphery thereof; a wavelet coding portion for extrapolating a predetermined data when no pixel existing at the periphery of the objective tile, decomposing each of the tiles into subbands and outputting only wavelet coefficients of the objective tile; a management information generating portion for generating management information necessary for independently decoding any desirable tile on a subband-by-subband basis; and a coded data integrating portion for attaching the management information to coded information to generate a bit stream, wherein the management information includes information on a location of the coded information for each of the tiles in the bit stream and information for managing and identifying each of the subbands, wherein the each adjacent pixel to be attached to the objective tile is multiplied by a weighting function according to a distance from the objective tile, when each of the objective tiles is attached the adjacent pixel by the adjacent pixel adding portion.