set image window level to 200 to 1500 in matlab

To set the window level of an image to a specific range in Matlab, you can use the imadjust function. Here's an example code that sets the window level of a grayscale medical image to the range [200, 1500]:

main.m
% Load the medical image
I = dicomread('example.dcm');

% Set the window level
J = imadjust(I, [200/4096, 1500/4096], []);

% Display the original and adjusted images side by side
imshowpair(I, J, 'montage');
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In this code, dicomread is used to load a DICOM image file in grayscale. The imadjust function is then used to adjust the intensities of the image to the desired range [200, 1500]. The second argument of imadjust specifies the input intensity range, which is set to [200/4096, 1500/4096] in this case as the input image is assumed to have 12-bit dynamic range. The third argument is set to [] to stretch the full dynamic range of the output image. Finally, imshowpair is used to display the original and adjusted images side by side for visual comparison.