Saving variable names into an cell array for later use in a for/while-loop.

Hello!

This might be a stupid question, but i cant find a solution for it either here on anywhere on google so i thought i might just try you guys!

I recently started playing a big with images and such, just to practice it. What i want to do is get sixteen diffrent images merged together. I managed to do that just fine, the problem occurred when i tried to make an image that were changing the order of those sixteen images, sort of a GIF.

What i tried to do was to save the diffrent images in a cell array:

Cell={'img1', 'img2', 'img3', ... , 'img16'}

Then, depending on which value a certain variable had, i'd assign a new cell array the correct image for that value:

   for j=1:12
       if rem(nthroot(value,j),1)==0
          img{i}=cell{j}; 
       elseif value==3
           img{i}='img3'
       end

   end

when i later wanted to use is in the image i had it go like this:

collImg = [imresize(img{1},newSize),imresize(img{2},newSize);imresize(img{3},newSize), ... , imresize(img{16},newSize)]

The problem is: The "imresize" wont accept any of the variables i try to extract from the cell array, i've tried with both common parantesis and with the specific for cell arrays. Is it possible to do it like this, or am i working on something impossible?

I'm sorry if this is messy.

Answer 1

[dpb]

It's possible, but don't do that! ... To see why and ways to do the same thing w/o 'poofing' variables into the workspace, see

http://matlab.wikia.com/wiki/FAQ#How_can_I_create_variables_A1.2C_A2.2C....2CA10_in_a_loop.3F

[Norianne Ingram]

Yeah, well, if it is possible we WANT to know how to do it. I've read that FAQ page 30x.

[Walter Roberson]

But you missed the part that starts,

"Now, if you still really want to go against our advice and create variables with dynamically generated names"