creating a code to upload and read tif images

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Mario 2024-4-3

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编辑： Stephen23 2024-4-8

Hi,

I got a series of tif images and I am trying to create a matlab code to upload and read it. can somebody helps me?

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Mann Baidi 2024-4-3

Hi Mario,

Have you tried using the 'imread' function. If not you can try using it using the following link

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

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Answer 1

Gayatri 2024-4-3

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在 MATLAB Online 中打开

Hi Mario,

To handle a series of TIF images in MATLAB, write a script that can iterate through all the TIF files in a given directory, read each image, and display them for further analysis.

Below is a sample MATLAB code to achieve this:

% Define the directory where your TIF images are stored
imageDir = 'your_directory_path'; % Change this to your directory path
% List all TIF files in the directory
imageFiles = dir(fullfile(imageDir, '*.tif'));
% Loop through each image file
for i = 1:length(imageFiles)
    % Construct the full file path for the image
    filePath = fullfile(imageDir, imageFiles(i).name);
    
    % Read the image
    img = imread(filePath);
    
    % Display the image
    imshow(img);
    title(['Image ' num2str(i)]);
end

This script will read and display each TIF image stored in the specified directory. Adjust the directory path and other options as necessary to fit your specific requirements.

Please refer the below documentation for 'imread' and 'imshow' functions:

I hope it helps!

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Mario 2024-4-8

Thanks Stephen,

I tried the code and the result of S(2).data is matrix 1400x1400 uint8. I tried transfer the matrix to double matrix to be 1400x1400x 500 double using the below command:

U(k)=double(S(k).data)

but it transfer only the last velocity field to double not the whole series. can you please advice me how to correct my command?

Stephen23 2024-4-8

编辑：Stephen23 2024-4-8

在 MATLAB Online 中打开

If you want all of the images concatenated into one 3D array then use CAT() e.g.:

A = cat(3,S.data)

https://www.mathworks.com/matlabcentral/discussions/tips/847976-tutorial-comma-separated-lists-and-how-to-use-them

Note that the order of the files returned by DIR() may not be what you expect (particularly if the filenames have numbers in them). If you expect the filenames to be sorted into alphanumeric order then you will need to ensure this yourself, e.g.:

using sufficient leading zeros in the filenames, or
downloading NATSORTFILES() and calling it before the FOR-loop, e.g.:

S = natsortfiles(S);

https://www.mathworks.com/matlabcentral/fileexchange/47434-natural-order-filename-sort

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creating a code to upload and read tif images

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