MATLAB: Creating a 3D array out of multiple 2D arrays

image analysisimage processingmask

I have 10 masks that are 256 x 256 each. These masks are for 10 respective slices, so I want to combine them and make a 3D array ( 256x256x10). How do I do this? Ideas? Thanks!

Best Answer

cat(3,mask1,mask2,...)
doc cat %for more info

Related Solutions

MATLAB: How to stack 2 dimensional arrays into 3 dimensional aarays

If 2D arrays are stored in 9 variables

cat(3,A1,A2,A3,A4,A5,A6,A7,A8,A9);

If they are stored in 1x9 cell C

cat(3, C{:});

MATLAB: How to compare strings and create a new column with the comparison result

The error message means, that you cannot compare a cell array with a string using the == operator. Use strcmp instead:

cat3    = cell(size(cat1));
cat3(:) = {'0'};
mask       = strcmp(cat1, 'low') & strcmp(cat2, 'low');
cat3(mask) = {'1'};
mask       = strcmp(cat1, 'medium low') & strcmp(cat2, 'medium low');
cat3(mask) = {'2'};
mask       = strcmp(cat1, 'medium') & strcmp(cat2, 'medium');
cat3(mask) = {'3'};
mask       = strcmp(cat1, 'medium high') & strcmp(cat2, 'medium high');
cat3(mask) = {'4'};
mask       = strcmp(cat1, 'high') & strcmp(cat2, 'high');
cat3(mask) = {'5'};

A loop might be nicer:

list = {'low', 'medium low', 'medium', 'medium high', 'high'};
for k = 1:5
  mask       = strcmp(cat1, list{k}) & strcmp(cat2, list{k}));
  cat3(mask) = {sprintf('%d', k)};
end

Best Answer

Related Solutions

MATLAB: How to stack 2 dimensional arrays into 3 dimensional aarays

MATLAB: How to compare strings and create a new column with the comparison result

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