A xerographic apparatus, a printer, a printer server, and the like processes
wavelet
domain image data and includes means for receiving the wavelet domain image data
representative of an input digital image. The wavelet domain image data may be
formatted as a JPEG 2000 compressed file or other wavelet domain file including
N levels of wavelet decompositions. An M-level extractor extracts an Mth level
wavelet decomposition from the wavelet domain image data where M is N. The
extracted Mth level wavelet decomposition is a low resolution representation of
the input digital image. An image enhancement system receives the extracted Mth
level wavelet decomposition and derives an enhancement process such as a tone reproduction
curve, a sharpness filter, and the like from the extracted Mth level wavelet decomposition.
The enhancement process is used to enhance a higher resolution representation of
the digital input image.