Wavelet

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Contents

[edit] Classical wavelets

Meyer-, Morlet- and mexican hat-wavelets

Wavelet - Meyer.png
Wavelet - Morlet.png
Wavelet - Mex Hat.png

[edit] Daubechies wavelets

scaling functions and their frequency amplitudes

Daubechies4-functions.svg
Daubechies12-functions.png
Daubechies20-functions.png
Daubechies4-spectrum.svg
Daubechies12-spectrum.png
Daubechies20-spectrum.png

The scaling/lowpass and wavelet/bandpass filters of D20, values connected with lines

Daubechies20scalingfn.png
Daubechies20wavelet.png

[edit] Wavelet packets with Daubechies wavelets

Daubechies12-packet-functions.png
Daubechies12-packet-spectrum.png

[edit] 2D DWT per quadtree decomposition

This is how a dot in the quadtree LH-part of an image would be interpolated

Daubechies20LowPassHighPass2DFilter.png
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