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Le Gall 5/3 Wavelet Transform

by Pascal Getreuer

 

24 Aug 2006 (Updated 25 Aug 2006)

Code covered by BSD License  

Easy function performs wavelet transforms with the Le Gall 5/3 wavelet. No toolboxes required.

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File Information
Description

This self-contained M-function applies the Le Gall 5/3 (Spline 2.2) wavelet transform--no toolboxes required.

Example usage:
% Perform a 5-stage forward transform on X
Y = waveletlegall53(X, 5);
% Inverse transform to recover X from Y
R = waveletlegall53(Y, -5);

The input array X may be of any size; arbitrary-length transforms are supported. For example, if X has length 9, one stage of decomposition produces a lowpass subband of length 5 and a highpass subband of length 4. Transforms of any length have perfect reconstruction (exact inversion).

If X is a matrix, waveletlegall53 performs a (tensor) 2D wavelet transform. If X has three dimensions, the 2D transform is applied along the first two dimensions.

Also see my "CDF 9/7 Wavelet Transform" (ID 6449).

MATLAB release MATLAB 5.3 (R11)
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Comments and Ratings (3)
11 Feb 2008 poonlap LAMSRICHAN  
26 Feb 2008 kundlik koli

Good

29 Aug 2008 achutha smile

i am not able to run this file,but its good

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Tag Activity for this File
Tag Applied By Date/Time
time frequency Pascal Getreuer 22 Oct 2008 08:35:50
wavelets Pascal Getreuer 22 Oct 2008 08:35:50
wavelet Pascal Getreuer 22 Oct 2008 08:35:50
le gall Pascal Getreuer 22 Oct 2008 08:35:50
spline Pascal Getreuer 22 Oct 2008 08:35:50
jpeg2000 Pascal Getreuer 22 Oct 2008 08:35:50
 

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