Mallat's algorithme a trous

16 Apr 2014
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Aggiornato 21 Apr 2014
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In the Fast wavelet transform documentation,it is said that fwt is based on Mallat's algorithm [Mal 89]....For my work i need Mallat's algorithme a trous....are they both same?....If no, is there any other command / information to implement this ?
Thanks in advance !!

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Walter Roberson
Walter Roberson il 16 Apr 2014

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Mallat's algorithm is multiresolution decomposition, which is not the same as the a trous algorithm. You can compare the two in this paper

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Chalma Reddy
Chalma Reddy il 21 Apr 2014
Thank you for the paper Mr. Walter.I am going through it...does wavelab have any ready made commands for algorihme a trous ?
Walter Roberson
Walter Roberson il 21 Apr 2014
It appears that the File Exchange Contribution http://www.mathworks.com/matlabcentral/fileexchange/5104-toolbox-wavelets has the a trou wavelet.

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