matrix to cell convert?

i have A=4*16384 double matrix and converted into 64*64 cell and each cell have again 4*4 double matrix ,now iam trying this below code

c = mat2cell(A,4,4*ones(64,64))

but it gives error

Error using mat2cell

Input arguments, D1 through D2, should be vectors.

[Geoff Hayes]

SRI - your third input is a 64x64 matrix but mat2cell is expecting this to be a vector. What dimensions of the cell matrix are you trying to get?

[SRI]

i want 64*64 cell output and each cell has again 4*4 cell double.

[SRI]

sir actually before i have S=64*64 cell and each cell has 4*4 double,and i changed to matrix by using

A= [S{:}]; % i got dimensions like 4*16384 double

and i want changed A into S with dimensions 64*64 cell

[Rik]

Comment sent by email:

i have rgb image and now i converted into 64*64 cell and each cell block has 8*8*3 cell blocks but i want to apply iwt to each and every individual blocks and apply reverse process and i want retrieve original cell has 64*64 cell blocks...please give the solution sir...............

Which part is your actual question? Do you want to know how to apply a function to all elements of a cell array? Do you want to know how to redivide a cell array containing matrices?

Answer 1

[Rik]

I'm going to assume you have 256x256 separated into 64x64 blocks and you want to redistribute to 4x4 blocks.

%create some data
data=reshape(1:(64*4)^2,64*4,64*4);
data=mat2cell(data,64*ones(1,4),64*ones(1,4));

A=cell2mat(data);%convert to a 256x26 matrix
B=mat2cell(A,4*ones(1,64),4*ones(1,64));%divide into 4x4 blocks

[SRI]

wow,Great sir....

U are a great person thanks for helping me.I understand everything in a short time period.

Answer 2

[Bruno Luong]

Depending on what you want as organization, either

C = mat2cell(reshape(A,4*64,4*64),4*ones(1,64),4*ones(1,64))

or

C = reshape(mat2cell(A,4,4*ones(1,64*64)),64,64) % EDIT: This is the reverse of A = [C{:}]

or ....

[SRI]

sir,

C = mat2cell(reshape(A,4*64,4*64),4*ones(1,64),4*ones(1,64)) %1 command line

C = reshape(mat2cell(A,4,4*ones(1,64*64)),64,64) %2command line

Both command lines are converted into 64*64 cell and each have 4*4 double.But when i using 1st command line elements are mis ordered ,but 2nd command line was perfect code for my question sir.Thanks a lot sir ,U done fabolus work to me.

[Bruno Luong]

Because the first command I wrote before you finally tell us (in your third comment) how A is obtained and you did not specify the order. Your original question is confusing.

[SRI]

Hoo,But thank u very much sir,Because without giving total clarification in my question but u give correct answer.

[SRI]

sir, your answer also correct but how to accept your answer also ,i dont know how to accept both answers in single question.

[Bruno Luong]

You accept which one is best for you.

I don't really care if my answer is not accepted as long as it is useful for you or somebody else.

[Bruno Luong]

Why? You got your answer here, why should I post there (where the order is not specified)?

[SRI]

i want to accept both ur answers,beacuse you done great favout to me