Hello All I am new to to the Wavelet topic and I need to understand some basics My question is that if I use the following Matlab code I = [2 5 8 9 7 4 -1 1]; [cA,cD] = dwt(I,'db4'); I get the following result for cA and cD cA = 10.5188 10.8384 2.6725 7.6008 12.8422 3.6526 0.8223 cD = 0.3774 0.6048 -0.9413 -1.9202 0.9256 1.8001 -0.1160 The question is: How does that matlab get that result?!!!!! Thanks a lot
Wavelet question!!!
Started by ●January 3, 2007
Reply by ●January 3, 20072007-01-03
In article <1167817911.622354.206500@48g2000cwx.googlegroups.com>, "kal" <khaldoon2300@gmail.com> wrote:> Hello All > I am new to to the Wavelet topic and I need to understand some basics > My question is that if I use the following Matlab code > > I = [2 5 8 9 7 4 -1 1]; > [cA,cD] = dwt(I,'db4'); > > I get the following result for cA and cD > cA = > 10.5188 10.8384 2.6725 7.6008 12.8422 3.6526 0.8223 > > cD = > 0.3774 0.6048 -0.9413 -1.9202 0.9256 1.8001 -0.1160 > > The question is: How does that matlab get that result?!!!!! > > Thanks a lotWhat is it about the result that is troubling you? Is it the length of cA and cD? You might take a look at the help pages for dwt and dwtmode. KP