ITK  5.2.0
Insight Toolkit
Examples/IO/DicomSliceRead.py
1 # ==========================================================================
2 #
3 # Copyright NumFOCUS
4 #
5 # Licensed under the Apache License, Version 2.0 (the "License");
6 # you may not use this file except in compliance with the License.
7 # You may obtain a copy of the License at
8 #
9 # http://www.apache.org/licenses/LICENSE-2.0.txt
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11 # Unless required by applicable law or agreed to in writing, software
12 # distributed under the License is distributed on an "AS IS" BASIS,
13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 # See the License for the specific language governing permissions and
15 # limitations under the License.
16 #
17 # ==========================================================================*/
18 
19 #
20 # Example on the use of ImageFileReader to reading a single slice (it will read
21 # DICOM or other format), rescale the intensities and save it in a different
22 # file format.
23 #
24 
25 import itk
26 import sys
27 
28 if len(sys.argv) < 3:
29  print("Usage: " + sys.argv[0] + " inputFile.dcm outputFile.png")
30  sys.exit(1)
31 
32 #
33 # Reads a 2D image in with signed short (16bits/pixel) pixel type
34 # and save it as unsigned char (8bits/pixel) pixel type
35 #
36 InputImageType = itk.Image.SS2
37 OutputImageType = itk.Image.UC2
38 
39 reader = itk.ImageFileReader[InputImageType].New()
40 writer = itk.ImageFileWriter[OutputImageType].New()
41 
42 filter = itk.RescaleIntensityImageFilter[InputImageType, OutputImageType].New()
43 filter.SetOutputMinimum(0)
44 filter.SetOutputMaximum(255)
45 
46 filter.SetInput(reader.GetOutput())
47 writer.SetInput(filter.GetOutput())
48 
49 reader.SetFileName(sys.argv[1])
50 writer.SetFileName(sys.argv[2])
51 
52 writer.Update()
itk::ImageFileReader
Data source that reads image data from a single file.
Definition: itkImageFileReader.h:75
itk::ImageFileWriter
Writes image data to a single file.
Definition: itkImageFileWriter.h:87
itk::RescaleIntensityImageFilter
Applies a linear transformation to the intensity levels of the input Image.
Definition: itkRescaleIntensityImageFilter.h:154