Anyone know how to convert dicom file to mat file?

Dear all,

Anyone know how convert dicom file to mat file?

the dicom file as attached.

I've tried this code. but got error.

clc
clear all
[spect map] = dicomread('Khadijahkalai.dcm'); 
size(spect);
spect = squeeze(spect);
for k = 1:142
    matwrite(P(:,:,k),sprintf('I-13125610N125666666%03d.dcm',k));
end

[Walter Roberson]

What is matwrite()? And if you are trying to save as mat files then why do you use dcm as the output file extension?

[mohd akmal masud]

i see..tq sir

[mohd akmal masud]

But when I tried read, there was an error.

this is my code

clc
clear all
[spect map] = dicomread('I-13125610N1256x25672-95.dcm'); 
size(spect);
spect = squeeze(spect);
for k = 1:24
    % labelDir = fullfile('matI-13125610N1256x25672-95');
    dicomwrite(spect(:,:,k),sprintf('I-13125610N125666666%03d.mat',k));
    
    %  save([labelDir  num2str(k,'%.3d') '.mat'],spect);
    
    %     save(spect(:,:,k), num2str('I-13125610N125666666%03d.mat',k));
end

Error using load

Unable to read MAT-file

C:\Users\Akmal\Desktop\Unet3D\matI-13125610N1256x25672-95\I-13125610N125666666001.mat.

File might be corrupt.

Error in matRead (line 2)

inp = load(filename);

Error in @(x)matRead(x)

[Rik]

Why are you using dicomwrite? That only writes dicom files, not mat files.

[Walter Roberson]

You would use save() to write mat files.

I am not clear on why you want separate mat files for each slice? It would make more sense to me if you were writing each slice as an image file.

[mohd akmal masud]

Dear Rik and Walter, then should I write?

[Walter Roberson]

assign the slice to a variable. Call save() passing in the file name and the name of the variable (as a character vector.)

spectslice = spect(:, :, k);
filename = sprintf('I-13125610N125666666%03d.mat',k);
save(filename, 'spectslice')

This assumes that you have good reasons to save each slice as a separate mat file, which we are having trouble thinking of a good reason to do. It would be more common to save the entire array as one mat, or to save slices as images.

[Rik]

If you really want to store every slice as a separate mat file (which I don't understand why you would want that):

dicom_filename='I-13125610N1256x25672-95.dcm';

[spect,map] = dicomread(dicom_filename);
spect = squeeze(spect);
for k = 1:24
    matfilename=sprintf('%s_%03d.mat',dicom_filename,k);
    spect_slice=spect(:,:,k);
    save(matfilename,'spect_slice')
end