VTK export JPG from DICOM

Exporting .jpg image copy from .dcm input using VTK in Python.

# Iterate through .dcm files and export to .jpg
for image in os.listdir(PathDicom):
if (image.endswith(".dcm")):
reader.SetFileName(image)
reader.Update()

# Need to cast before writing to .jpg
castFilter = vtk.vtkImageCast()
castFilter.SetOutputScalarTypeToUnsignedChar()
castFilter.SetInputConnection(reader.GetOutputPort())
castFilter.Update()

# .jpg file write
writer = vtk.vtkJPEGWriter()
writer.SetInputConnection(castFilter.GetOutputPort())
jpg_filename = image.replace(“.dcm”, “.jpg”)
writer.SetFileName(“{0}”.format(jpg_filename))
writer.Write()

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