Matlab reshape in 3D

19 views (last 30 days)
2one
2one on 20 Oct 2015
Commented: 2one on 20 Oct 2015
I have a 119 x 49 x 27 (yxz) matrix (A) which is a stack of 27 blocks which make up a larger 2D image. I know that the larger 2D image has 3 x 9 (yx) =27 blocks. I am trying to 'stitch' together the 27 blocks to make the larger image. So far I've got:
B = reshape(A,49*9,119*3);
It generates a 2D matrix B (441 x 357) but is not correct.
  1 Comment
2one
2one on 20 Oct 2015
it seems that the order than it joins the 27 blocks together is incorrect.

Sign in to comment.

Accepted Answer

Guillaume
Guillaume on 20 Oct 2015
I'm not sure it can be done with reshape and permute alone. Temporarilly using a cell array, it's very easy:
A = permute(repmat(1:27, [119 1 27]), [1 3 2]); %demo matrix
B = num2cell(A, [1 2]); %split the stack into a cell array
B = reshape(B, 3, 9); %reshape the tiles into their final position. You may need to transpose the reshape
B = cell2mat(B); %convert to matrix
  1 Comment
2one
2one on 20 Oct 2015
Thanks! works beautifully!

Sign in to comment.

More Answers (0)

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!