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DICOM Images show greyish

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Simon on 25 Oct 2021
Commented: Simon on 26 Oct 2021
Hi there,
im curently working with CT and MRI Scans in DICOM Format. The MRI Images work completly fine, but the CT Images look this greyish. It is the same in the matlab Dicom Viewer but not in Online Viewers, there the Images are shown normal.
I already tried to rescale them, but it didn't help at all?
Has anybody an Idea where this comes from and how to fix it?
Thanks for your help :)
Simon on 25 Oct 2021
Thank you guys for all your help, so far im a a state, where I can continue in processing ;)

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Answers (2)

Image Analyst
Image Analyst on 25 Oct 2021
Try using [] in imshow() to scale your min to 0 and max to 255:
imshow(yourGrayScaleImage, []);
Simon on 26 Oct 2021
Just for understanding, here you can see what these two discs originally looked like. (The right one is changed to binary already, cause of the original problem)
Also the left Image is saved as 256x256

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