How to use other packages with pydicom to view DICOM images
Pydicom is mainly concerned with getting at the DICOM data elements in files, but it is often desirable to view pixel data as an image. There are several options:
Using pydicom with matplotlib¶
Matplotlib is available at https://matplotlib.org/. It
can take 2D image information from
Dataset.pixel_array and display it.
Here is an example:
>>> import matplotlib.pyplot as plt >>> import pydicom >>> from pydicom.data import get_testdata_files >>> filename = get_testdata_files("CT_small.dcm") >>> ds = pydicom.dcmread(filename) >>> plt.imshow(ds.pixel_array, cmap=plt.cm.bone) <matplotlib.image.AxesImage object at ...>
Thanks to Roy Keyes for pointing out how to do this.
Using pydicom with Tkinter¶
The program pydicom_Tkinter.py
contrib-pydicom repository demonstrates how to show an image using the
Tkinter graphics system, which comes by default with most Python installations.
It creates a Tkinter PhotoImage in a Label widget or a user-supplied widget.
Using pydicom with Python Imaging Library (PIL)¶
The module pydicom_PIL.py
Image.show() method after creating an Image instance
from the pixel data and some basic information about it (bit depth, LUTs, etc).