How to convert cell to logical?

Dear all. I have the image grountruth as attached. the image categorical.

Anyone know how to convert it into logical?

Answer 1

[KSSV]

You can use ismember. Let L be your categorical data of size 128*128*64. I see that, there are two data background, tumour. You can have 0 in background and 1 in tumour, using:

idx = ismember(L,'tumor') ;

[mohd akmal masud]

But I got error

Let groundTruthLabels be my categorical data of size 128*128*64

idx = ismember(groundTruthLabels,'tumor') ;

Error using cell/ismember
Input A of class cell and input B of class char must be cell arrays of character vectors,
unless one is a character vector.

[KSSV]

Load the file and use:

L = groundTruthLabels{1}{1} ;
idx = ismember(L,'tumor') ;

[mohd akmal masud]

I tried it. But its look like empty. like below

supposedly have tumor like below

[mohd akmal masud]

Sorry, Its Solved. Thak you sir

[KSSV]

There is a typo error....string should be 'tumor' not 'tumour'. Edited the answer.....check it now.