Read a specified list of images given the filename and the directory the files are in

I am not too sure on how to write a function that takes in as inputs a string containing the name of a directory that the images are contained in, and a 1xn 1D array containing n strings where each element is a filename of an image to read.

the function needs to return one output; a 1D array containing n images where each element is an RGB image.

Any help would be appreciated:)

Answer 1

[Stephen23]

D = "path of the directory where the images are saved";
S = ["string array","of","the image filenames"];
N = numel(S);
C = cell(1,N);
for k = 1:N
    F = fullfile(D,S(k));
    C{k} = imread(F);
end

See also:

https://www.mathworks.com/help/matlab/ref/fullfile.html

https://www.mathworks.com/help/matlab/import_export/process-a-sequence-of-files.html

[Walter Roberson]

function homework7b(D, S)
    N = numel(S);
    C = cell(1,N);
    for k = 1:N
        F = fullfile(D,S(k));
        C{k} = imread(F);
    end
end

[Rik]

Comment posted as answer by Devdolly Saini:

how will i write a function for this piece of code though. sorry I am very new to MATLAB.

[Walter Roberson]

What I posted is a function already. The only thing it is missing is returning the images as a 1d array.

Answer 2

[Jeremy Hughes]

Datastores are convenient for reading collections of files.

imds = imageDatastore(directory)
imshow(read(imds))

Each time you call read, it will give the next image in the directory.