|From:||Juan Pablo Carbajal|
|Subject:||Re: Some questions about LTFAT wavelets|
|Date:||Tue, 20 Jan 2015 13:30:26 +0100|
-AlasdairMany thanks! The output of "pkg list" isI am hoping to use wavelets for image processing, so I do need some of these other packages. However, if I start octave (version 3.8.1), under linux (Ubuntu 14.04 64 bit) with
Package Name | Version | Installation directory
control *| 2.6.6 | /usr/share/octave/packages/control-2.6.6
general *| 1.3.4 | /usr/share/octave/packages/general-1.3.4
image *| 2.2.2 | /usr/share/octave/packages/image-2.2.2
io *| 2.2.4 | /usr/share/octave/packages/io-2.2.4
ltfat *| 2.0.1 | /usr/share/octave/packages/ltfat-2.0.1
signal *| 1.3.0 | /usr/share/octave/packages/signal-1.3.0
specfun *| 1.1.0 | /usr/share/octave/packages/specfun-1.1.0
statistics *| 1.2.3 | /usr/share/octave/packages/statistics-1.2.3
and then enter the commands
pkg load ltfat
the same errors as before are produced. I've even tried starting octave in a different directory, to ensure it's not picking up anything from some of my own programs. I suppose I could upgrade octave to 3.8.2... Anyway, thanks again!
--On Tue, Jan 20, 2015 at 9:34 PM, <address@hidden> wrote:> In attempting to find an implementation of the fast wavelet transform, I
> downloaded and installed the LTFAT package, which has what looks to be a
> fairly full-featured wavelets module.
> 1. Without going through all the wfilt_* functions, is there a list of
> all the wavelets and wavelet families supported by LTFAT?
The best place to look is probably just the overview of the Contents file:
here you can see a list of all of them.
> 2. On some wavelets, wfiltinfo produces errors. For example:
> wfiltinfo('dden5') gives a nice figure full of graphs, but
> produces one graph, and then:
> error: cellfun: dimensions mismatch
> error: called from:
> error: /usr/share/octave/3.8.1/m/plot/appearance/axis.m at line 348,
> column 14
> error: /usr/share/octave/3.8.1/m/plot/appearance/axis.m at line 374,
> column 8
> error: /usr/share/octave/3.8.1/m/plot/appearance/axis.m at line 231,
> column 7
> error: /usr/share/octave/3.8.1/m/plot/appearance/axis.m at line 149,
> column 7
> error: /usr/share/octave/packages/ltfat-2.0.1/wavelets/wfiltinfo.m at
> line 81, column 1
> What's going on here, and how do I overcome it?
Hmm... I can't reproduce it. Which operating system are you using? Have
you installed any other wavelet toolboxes? Perhaps there is a name clash
with some external function.
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