matrix to cell convert?
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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.
4 个评论
Geoff Hayes
2019-8-29
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
2019-8-29
Rik
2019-9-3
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?
采纳的回答
Rik
2019-8-29
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
更多回答（1 个）
Bruno Luong
2019-8-29
编辑：Bruno Luong
2019-8-29
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 ....
7 个评论
SRI
2019-8-29
Bruno Luong
2019-8-29
编辑：Bruno Luong
2019-8-29
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
2019-8-29
SRI
2019-8-29
Bruno Luong
2019-8-29
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
2019-8-29
编辑：Bruno Luong
2019-8-29
Why? You got your answer here, why should I post there (where the order is not specified)?
SRI
2019-8-29
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