ITK  5.2.0
Insight Toolkit
SphinxExamples/src/Filtering/ImageFilterBase/CastAnImageToAnotherType/Code.py
1 #!/usr/bin/env python
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
10 #
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 import sys
18 import itk
19 
20 if len(sys.argv) != 3:
21  print("Usage: " + sys.argv[0] + " <inputImage> <outputImage> ")
22  sys.exit(1)
23 
24 inputImage = sys.argv[1]
25 outputImage = sys.argv[2]
26 
27 Dimension = 2
28 InputPixelType = itk.F
29 OutputPixelType = itk.UC
30 
31 InputImageType = itk.Image[InputPixelType, Dimension]
32 OutputImageType = itk.Image[OutputPixelType, Dimension]
33 
34 reader = itk.ImageFileReader[InputImageType].New()
35 reader.SetFileName(inputImage)
36 
38  InputImageType,
39  InputImageType].New()
40 rescaler.SetInput(reader.GetOutput())
41 rescaler.SetOutputMinimum(0)
42 outputPixelTypeMaximum = itk.NumericTraits[OutputPixelType].max()
43 rescaler.SetOutputMaximum(outputPixelTypeMaximum)
44 
45 castImageFilter = itk.CastImageFilter[InputImageType, OutputImageType].New()
46 castImageFilter.SetInput(rescaler.GetOutput())
47 
48 writer = itk.ImageFileWriter[OutputImageType].New()
49 writer.SetFileName(outputImage)
50 writer.SetInput(castImageFilter.GetOutput())
51 
52 writer.Update()
itk::CastImageFilter
Casts input pixels to output pixel type.
Definition: itkCastImageFilter.h:104
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::NumericTraits
Define additional traits for native types such as int or float.
Definition: itkNumericTraits.h:58
itk::RescaleIntensityImageFilter
Applies a linear transformation to the intensity levels of the input Image.
Definition: itkRescaleIntensityImageFilter.h:154
itk::Image
Templated n-dimensional image class.
Definition: itkImage.h:86