Smoothness-constrained quantization for wavelet image compression

Uniform quantization of wavelet coefficients introduces perceptually disturbing artifacts by decreasing the visual smoothness. In this paper, the local Holder regularity is used to quantify these changes in visual smoothness. A modified uniform quantization scheme that constrains local regularity re...

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Veröffentlicht in:	IEEE transactions on image processing 1999, Vol.8 (12), p.1807-1811
Hauptverfasser:	Carey, W.K., Hemami, S.S., Heller, P.N.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Compression algorithms Continuous wavelet transforms Counters Decoding Exact sciences and technology Image coding Image compression Image processing Image reconstruction Information, signal and communications theory PSNR Psychology Quantization Regularity Signal processing Smoothness Telecommunications and information theory Visual Wavelet Wavelet coefficients Wavelet transforms
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