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Page Revision: 2010/11/14 17:54

Important Factor

Wavelet selection

• A wavelet coding system : encoder, decoder
  

• Three-scale wavelet transforms.
• (a) Haar wavelets (b) Daubechies wavelets, (c) symlets (d) Cohen-Daubechies Feauveau biorthogonal wavelets.
  

• Wavelet transform filter taps and zeroed coefficients when truncation the transform in Image below 1.5
  

Decomposition level Selection

• Decomposition level impact on wavelet coding the 512*512 image
  

Quantizer Design

JPEG-2000

JPEG-2000 fundamental building blocks

Pre-processiong

Compression- DWT

Quantization

Encoding

Decoding

Inverse quantization

Inverse transform

The inverse irreversible componet transform

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