how to obtain wavelet co-efficient

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I am working on 3D IWT ,sir,the output i need is eight 3-D frequency sub-bands
LLLr,LLHr,LHLr,LHHr,HLLr,HLHr,HHLr,HHHr
Each level of decomposition, r, of the transform decomposes the 3-D image input into eight 3-D frequency sub-bands as mentioned,I have uploaded the block diagram ,

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Wayne King
Wayne King 2011-10-1
Hi, MATLAB supports a 3-D wavelet transform, but the 3-D lifting scheme is not supported so the coefficients will be not be integers even if you start with integer-valued data. That being said, please look at:
Look at the explanation for the dec field of the structure array output.
Also, look at the reference page for dwt3
Wayne
  10 个评论
Wayne King
Wayne King 2011-10-1
I'm sorry I really don't have time to read your paper. If your goal is to process the whole 26 slice dataset, with an eye toward compression for example, then wavedec3, waverec3 are the right tools. Please look at the demo that I referred you to.
FIR
FIR 2011-10-1
i saw that demo sir thank u am graetful to u ,
http://imgur.com/QLLy2
please look at the block diagram,and say howb to get that coefficient

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更多回答(1 个)

Wayne King
Wayne King 2011-10-1
FIR, I told you that answer. Please look at the example in wavedec3. I included the link for you above. If you open the reference page and read it, it tells you how to find those coefficients.

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