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error message when using dwt3
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Hi there I get the following error message when trying to use dwt3. I have used dwt2 successfully but I get the following with this function
Undefined function or method 'dwt3' for input arguments of type 'double'.
Error in ==> part1reconstruct at 38 wt=dwt3(Adash,'bior2.4');
What do I need to change the data type to as I have looked at the documents and it does not say!
Thanks again guys :)
1 Comment
Walter Roberson
on 28 Mar 2013
Is it possible you are using a version of MATLAB from before dwt3 was introduced? Which one are you using? What does
which -all dwt3
which -all dwt2
show ?
Answers (2)
Wayne King
on 28 Mar 2013
I think Walter's comment above is right on. dwt3.m should work if you have the Wavelet Toolbox and a version of MATLAB after dwt3.m was introduced (R2010a).
X = randn(10,10,3);
WT = dwt3(X,'bior2.4');
works.
0 Comments
Bran
on 28 Mar 2013
4 Comments
Wayne King
on 2 Apr 2013
If you want to take the discrete wavelet transform of a 3-d dimensional dataset, then yes, you need to use 3-D transform. Are you sure you can use the 2-D wavelet transform on 2-D slices of your data?
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