How to convert image file name "1.jpg" into a string or # in a list, list= [1]

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Rachel Dawn
Rachel Dawn 2020-11-9
回答： Mathieu NOE 2020-11-9
SIMPLE QUESTION: How to convert a image file name "1.jpg" into a string or # "1"?
Ignore what's below (unless you have the time to answer it), but ^ this is mainly what I need
So, I created images using a function called imagegenerator & data inputs such as "volume" and "location."
I saved each image generated as a # (i.e. 1.jpg, 2.jpg, 3.jpg.....).
I also saved the input data/variables used for each image (volume & location) as files (i.e. 1.jmat, 2.jmat, 3.jmat....)
Then, using machine learning, I clustered the images into three groups and saved each group of images into three separate folders (cluster0, clsuter1, cluster2)
Now, I want to choose one of these folders (i.e. cluster0) and save the image files as variables in a list. So, say that cluster 0 has these images in it: "1.jpg, 23.jpg, and 52.jpg". I want to make a list called imagenumbers= [1, 23, 52]
Then, I want to use these numbers to retrieve the data/variables that match to these numbers (1.jmat, 23.jmat, 52.jmat) so that I can input similar volume & location values through the imagegenerator function & create similar images to 1.jpg, 23.jpg, and 52.jpg.
I'm just not sure how I can save the image files as #s in a list & then use these #s to call in the variables from the matching jmat files (i.e. volume & location stored in 1.jmat, 23.jmat, and 52.jmat) -- one by one in a for loop

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回答（1 个）

Mathieu NOE
Mathieu NOE 2020-11-9
hello
my suggestion here - not really tested the mat file loading
files = dir('*.jpg'); % list all jpeg files in current directory
% main loop
for ck = 1:length(files)
Filename = files(ck).name;
H{ck} = imread(Filename);
% plot (just to check)
figure(ck), imagesc(H{ck});
% load mat file
Filename_mat = [Filename(1:length(Filename)-4) '.mat'];
S = load(Filename_mat);
% insert your own code here
end

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