adjust window leveling for dicom file in matlab

To adjust window leveling for a DICOM file in MATLAB, you can use the imtool function, which allows interactive window/level adjustment. Here is an example:

main.m
% read DICOM file
info = dicominfo('filename.dcm');
img = dicomread(info);

% display image with initial window/level settings
imtool(img, []);

% interactively adjust window/level settings using imtool GUI
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When you run the above code in MATLAB, imtool will open a separate figure window displaying the DICOM image. You can then use the mouse to adjust the window/level settings interactively. Once you are satisfied with the settings, you can close the imtool window and continue with your processing.