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iezw

$ \bigcirc$Name


iezw Wavelet transform compression via EZW algorithm




$ \bigcirc$Command Synopsis


iezw [-p] [-w WeightFac] Compress QWavTrans



-p : Print full set of information

-w WeightFac : Scaling factor for wavelet coefficients

Compress : Input string of codewords (cimage)

QWavTrans : Output reconstructed wavelet transform (wtrans2d)




$ \bigcirc$Function Summary


void iezw (PrintFull , WeightFac , Compress , Output )

int *PrintFull ;

float *WeightFac ;

Cimage Compress ;

Wtrans2d Output ;




$ \bigcirc$Description


This module reconstructs a wavelet transform from its compressed representation which is read in Compress. Compress must have been generated using ezw or fezw modules. The resulting wavelet transform is put in the files with prefix QWavTrans.

Compress has been obtained by applying the Shapiro's EZW algorithm to the wavelet transform of some image. See ezw module documentation for a brief explanation of this algorithm.

The -w option has the same meaning as in ezw module and it should be tune in the same way.

The -p option enables to get more information on the decompression process.




$ \bigcirc$See Also


fillpoly.

fiezw.


$ \bigcirc$Version 1.30


Last Modification date : Thu Nov 29 20:23:57 2001


$ \bigcirc$Author


Jean-Pierre D'Ales






next up previous contents index
Next: ardecode2 Up: Reference Previous: fiezw   Contents   Index
mw 2004-05-05