Patent ID: 6917716

Claim:
An image processing apparatus comprising: discrete wavelet transform means for performing discrete wavelet transform on a luminance component and two chrominance components of image data, the size of the luminance components being the same as that of each of the two chrominance components; coefficient coding means for encoding coefficients of subbands generated by said discrete wavelet transform means; and code data generation means for generating code data by arraying code data corresponding to the luminance and chrominance components encoded by said coefficient coding means, wherein said discrete wavelet transform means performs the number of discrete wavelet transforms on each of the two chrominance components more than that on the luminance component and decomposes the luminance and chrominance components into different numbers of subbands for the two chrominance components, and wherein said code data generation means generates the code data by sequentially arraying a part or whole of code data of subbands at the same level among the code data.