MATLAB Answers

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

Devdolly Saini 님이 질문을 제출함. 7 Sep 2019
최근 활동 Jeremy Hughes 님이 편집함. 13 Sep 2019
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:)

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Answer by Stephen Cobeldick on 7 Sep 2019
Edited by Stephen Cobeldick on 7 Sep 2019

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:

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

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Answer by Jeremy Hughes on 13 Sep 2019
Edited by Jeremy Hughes on 13 Sep 2019

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.

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