How to image one text file from many

I have a set of text files consisting of depth values named '00.txt', '01.txt', '02.txt' etc, and I have imported them as shown below:

Images=dir(fullfile('folder1\folder2\','*.txt'));

ImageD = fullfile({Images.folder},{Images.name});

for i = 1:numel(ImageD)
    
    dataImage(:,:,i)=importdata(ImageD{i}).data;
    
end

Now I would like to image only one of the files. How can I do that?

[DGM]

What do you mean "image a text file"? Are you trying to graph it?

[Dinos Layiotis]

Yes plot the surface of '00.txt' for example.

Answer 1

[Turlough Hughes]

You could use imagesc or imshow(___,[]) as follows:

dataImage = randi(1000,100,100,5); % example data you could have for dataImage
imagesc(dataImage(:,:,1))

Note, dataImage doesnt have the typical scale that an image does, which I expect is the case for you.

figure(), imshow(dataImage(:,:,1),[])

[Turlough Hughes]

If it's a suface plot that you're looking for then you can use:

surf(dataImage(:,:,i))

To do a surface plot of each one (one figure each), you can write:

for ii = 1:size(dataImage,3)
    figure()
    surf(dataImage(:,:,ii))
end

Or you might prefer to use a tiledlayout:

N = size(dataImage,3);
m = ceil(N/3);
figure(), tiledlayout(m,ceil(N/m))
for ii = 1:size(dataImage,3)
    nexttile
    surf(dataImage(:,:,ii))
end

Answer 2

[yanqi liu]

Images=dir(fullfile('folder1\folder2\','*.txt'));

ImageD = fullfile({Images.folder},{Images.name});

for i = 1:numel(ImageD)
    
    dataImage(:,:,i)=importdata(ImageD{i}).data;
    
end

for i = 1 : size(dataImage, 3)
    figure; imshow(mat2gray(dataImage(:,:,i)));
end