Multi-iteration wavelet zero-tree coding for image compression

@article{Losada2000MultiiterationWZ,
  title={Multi-iteration wavelet zero-tree coding for image compression},
  author={Mar{\'i}a {\'A}ngeles Losada and Gulay Tohumoglu and David Fraile and Antonio Art{\'e}s},
  journal={Signal Processing},
  year={2000},
  volume={80},
  pages={1281-1287}
}
Here, we present a modi"cation of Shapiro's embedded zerotree wavelet algorithm (EZW) for image codec. Shapiro's technique is based on the wavelet transform and on the self-similarity inherent in images. In the EZW, the wavelet transform (WT) coe$cients, which provide a multiresolution representation of the image, are arranged according to their signi"cance across scales using a small symbol set (zerotree (ZT) coding). An analysis of the symbol entropy shows that better compression rates can be… CONTINUE READING

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