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arraysimagematlab
David Caissy
David Caissy

Reputation: 2229

MATLAB: Create a predefined array of images

I need to load many small grayscale images in MATLAB. All images are of the same type/size. How can I predefine an array and place a different image in each of its cell?

For example, an array of 100 images, inserting an image at position 50:

my_array = zeros(100);
...
my_array(50) = my_image;
...
imshow(my_array(50));

Thanks!

Upvotes: 0

Views: 293

Answers (1)

RDizzl3
RDizzl3

Reputation: 846

You can do this using a cell array, simply define it as:

my_array = cell(100,1);

my_array{50} = my_image;

imshow(my_array{50})

Each cell of a cell array can hold different size arrays and types. I did assume that your my_image variable was an array. Also notice the curly brackets, this is how you access/define the content in a cell array. Here is a small example:

a = rand(100); % 100x100 size array in cell position 1
r = rand(100,100,3); % Different size array in cell position 2
b = cell(2,1); % initialize cell
b{1} = a; % assign cell content
b{2} = r;
imshow(b{1})

imshow(b{1})

The image is the results of imshow(b{1})

Upvotes: 1

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