similar to: wavelet toolbox

Displaying 20 results from an estimated 700 matches similar to: "wavelet toolbox"

2009 Feb 20
0
package "wavelets" does nor recognize filter "d2"
I take the liberty of pasting the on-line documentation for package "wavelets", functions "dwt" and "wt.filter", pertinent to the wavelet/filter choice. While I apologize for my verbose messages with huge attachments, I encourage whoever loads packages to CRAN to take some minutes to reread the attached documentation. Usage dwt(X, filter="la8", n.levels,
2006 Apr 23
0
Cohen-Daubechies-Fauraue (CDF) 9/7 wavelet-transform
Hello, I have to make use of the Cohen-Daubechies-Fauraue (CDF) 9/7 wavelet-transform, but have not found these biorthogonal wavlet in the released packages waveslim, wavethresh or wavelets. Is there any package doing this transform? Or can anybody send me the function doing this? I would be very grateful of that. Thanks Annika
2001 Feb 09
1
wavelet compression references
Hi everyody, ince some of you asked for references, here some links: A good book is 'Data Compression' from David Salomon, ISBN 0-387-98280-9. Papers available on the web: A nice introduction to wavelets is http://cm.bell-labs.com/who/wim/papers/athome/ A somewhat theoretical paper about integer wavelet transform http://cm.bell-labs.com/who/wim/papers/integer.ps.gz Since Peter
2000 Dec 30
5
2d wavelet transforms
I've been reading up on wavelet transforms the past week, and I plan to start on some video compression stuff next week, if it's any good (small chance :)) for Tarkin. So far I think I know what's happening, however there's one small thing I don't quite understand yet. If I understand correctly, you can do a 2d wavelet transform (I'm assuming a Haar transform here for
2004 Oct 22
0
wavelets
Hi I wanna know how can I just obtain the values of mother wavelets (symmlets) for the corresponding support. That isn´t the decomposition, just the values we can plot in R. thanks a lot Lane [[alternative HTML version deleted]]
2009 Mar 28
0
R: Fortran 90 etc.
I have tried to compile the working Fortran-90 routines (see attachment) to interface them with R. The compiler automatically caled by R CMD command line prints a bunch of error messages (as follows). I think I'm better off translating the Fortran implementation into R ... which is what I hoped I could avoid. Maura host705:Desktop mauede$ R CMD SHLIB ford.f90 gfortran -arch i386
2009 Feb 21
0
problems in package "wavelets" function "wt.filter"
> wt.filter("d8") Error in validObject(.Object) : invalid class "wt.filter" object: invalid object for slot "transform" in class "wt.filter": got class "function", should be or extend class "character" How come ? The above function works fine with the other Daubechies filters. Thank you. Best regards, Maura tutti i
2006 Jan 08
2
Filters in waveslim
Dear R Users, For running wavelet functions using dwt( ), modwt( ), and mra( ), a wavelet filter algorithm is applied. For all these functions, default is "la8" and other possibility is "haar". In related documents, another possibilities like as symlet and coiflet ... are not cited. Besides "la8" and "haar", which wavelet filters can be used? Thank
2009 Mar 04
1
flaw in CRAN package "wavelets": Daubechies "d8" not recognized by function wt.filter
> wt.filter("d8") #### HOW COME ???? Error in validObject(.Object) : invalid class "wt.filter" object: invalid object for slot "transform" in class "wt.filter": got class "function", should be or extend class "character" > wt.filter("d10") # OK An object of
2010 Nov 25
2
Lifting Wavelet Transform
Hi R users   Thanks in advance   Is lifting wavelet transform implemented in R? If so, which package or codes  can be used for performing that?    assaedi76@yahoo.com   Thanks     [[alternative HTML version deleted]]
2006 Jun 30
4
subscription to mail folders not working properly anymore with dovecot1.0x ?
Hi we run dovecot on sun solaris 9. I try to switch from dovecot 0.99.11 to dovecot 1.0, with ssl support turned on. The user's mail are stored in mbox format in Mail in their home dirs. I was not able to get the subscrition working properly with the new dovecot. New means: 1.0beta2 and now also 1.0.RC1 (beta9) The client mailreaders are mainly thunderbird 1.0x and 1.5.x, Netscape Messenger,
2017 Jun 01
1
Restore a node in a replicating Gluster setup after data loss
Hi We have a Replica 2 + Arbiter Gluster setup with 3 nodes Server1, Server2 and Server3 where Server3 is the Arbiter node. There are several Gluster volumes ontop of that setup. They all look a bit like this: gluster volume info gv-tier1-vm-01 [...] Number of Bricks: 1 x (2 + 1) = 3 [...] Bricks: Brick1: Server1:/var/data/lv-vm-01 Brick2: Server2:/var/data/lv-vm-01 Brick3:
2001 Jun 27
1
Wavelet audio codec by Adapted Wave Tech.
Following a post on vqf.com forum, I found out that some company called Adapted Wave Technology is ready to release its audio codec based on wavelets. They say that this wavelet-based codec is superior to MDCT codecs by 30-50%. One sentence caught my attention: "Adapted Wave Technologies holds exclusive patent rights for applying wavelet packets to audio applications." - sounds like a
2017 May 02
0
NHW Project and wavelet codecs
Hello, In my last post, I seemed to say that there were no directional wavelet transforms that would give improvement to the NHW codec, but are directional wavelets an active research field today? I have also seen some recent patents on advanced and improved SPIHT, and I am a little surprised that there is no "up-to-date" state-of-the-art wavelet codec.Rududu in April 2008 was the last
2007 Aug 30
2
Unknown connection error: (2006) MySQL server has gone away
Hi, I get the following after a call has finished: ERROR[6862]:mysql_log: cdr_mysql: Unknown connection error: (2006) MySQL server has gone away Does this error message only appear when asterisk makes a new connection to mysql, because the old connection was stale (and dropped) ? If so, is there a way to get asterisk to stop reporting this as an error seeing it seems to write the CDR to
2012 Mar 14
1
Wavelet Image Codec - advice
Hello, Is is a great pleasure to post on a Xiph IRC Channel.I contacted you to have your advice and comment about wavelets for image/video compression, as I have made a wavelet-based image compression codec. I know that currently the best image/video compression codecs use the DCT block-based transform, like JPEG, Ogg Theora and the recent Google WebP, for example, but what would you think of
2009 Jun 04
1
Morlet wavelet analysis
Dear, I am using "cwt "function from Rwave package to perform Morlet wavelet analysis. d1<-c(1.31673209591515, -0.171333455797346, -1.67618546079420, -0.931604651010362, -0.954614183224057, -1.19821794547758, 0.516096363353144, -0.0432811977638559, 0.737764943619919, 0.438046629673177, -0.208607167908743, -0.3091308821262, -1.42473112931594, 0.234125312118165, -0.307047554490597,
2006 Apr 27
1
Whats this for a block?
Hi, I have got a question concerning directory entries. I have the following block containing exactly the filenames I had in one specified folder on the same file system: http://www.sbox.tugraz.at/home/n/nobaq/ext2.dat I really hoped that this is an directory block which could point me to the inode of the files. But when I try to extract the data, I only get garbage. I'm reading the
2013 Apr 08
4
LMTP Setup/Design Help Request
Hi altogether, I am switching from dbmail 2.2 to dovecot 2.1.7, and I was able to do a successful transition of IMAP. But I had a very hard time with receiving mail, and in the end -- after loads of reading and debugging -- I broke down and failed. This is why I am asking you for your kind help. I only have virtual users and have set mail_uid = dovemail mail_gid = dovemail For authentication,
2023 Jul 20
1
Samba 4 AD SmartCard Authentication Problem
Confusing. Github says that is open. Ok. My mistake. The question remains why the Windows clients allow login for an expired certificate despite a correctly loaded CRL. What is the purpose of specifying the CRL in smb.conf? It seems to me that the smartcard login is not really reliable. Then my users still have to log in with password. For now, as long as 4.19 is not yet released. Hans