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From: Brendan <brendandetracey@yahoo.com>
Newsgroups: comp.soft-sys.matlab
Subject: wavelets - image downsampling
Date: Fri, 21 Nov 2008 15:36:14 -0800 (PST)
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I am trying to use the wavelet toolbox to downsample images. I
understand the output format of the wavedec2 function, but from this
output how do I select a given wavelet level(e.g. largest
approximation coefficient) and reconstruct  as I can do with the 2-D
Wavelet Selection GUI?