MATLAB: Displaying co-efficient

coefficient

i HAVE A CODE
x=imread('st.tif');
x=rgb2gray(x);
x=double(x);
[Faf, Fsf] = FSfarras;
[af, sf] = dualfilt1;
J = 4;
T = 10;
[r c ]=size(x)
w = dualtree2D(x,J,Faf,af)
if i multiply w with another matrix i get error ,if i use cell2mat function even then i get error
   cell2mat(w)
  ??? Error using ==> cell2mat at 55
  Cannot support cell arrays containing cell arrays or objects.
please help how to solve this ,struck here for a long

Best Answer

That is because w is a cell array of cell arrays.
For example:
      x = rand(16);
      J = 1;
      [Faf, Fsf] = FSfarras;
      [af, sf] = dualfilt1;
      w = dualtree2D(x, J, Faf, af);
w{2}{1} gives you the approximation image at level 1, so you can do:
      App = w{2}{1};
The above is matrix
To get the dual tree detail coefficients (H,V,D),enter:
       Atreedetcoefs = w{1}{1};
       Btreedetcoefs = w{1}{2};
The above are cell arrays of matrices, you can use cell2mat on Atreedetcoefs and Btreedetcoefs, but you have to be careful that you know how the H,V, and D matrices are concatenated.
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