| 摘要 |
<p>An N-level wavelet transform is executed on an image signal representing an image having a first dimension and a second dimension. First, an N-level one-dimensional wavelet transform is executed in the first dimension, generating an intermediate signal which is temporarily stored in a memory device; then an N-level one-dimensional wavelet transform is executed on the intermediate signal in the second dimension. The image signal may be accompanied by shape information describing the shape of the image, in which case each N-level one-dimensional wavelet transform is executed by a series of N one-level wavelet transforms, with alteration of the shape information when each one-level wavelet transform is performed. <IMAGE></p> |
