ITK  5.2.0
Insight Toolkit
SphinxExamples/src/Filtering/ImageIntensity/ApplyExpNegativeImageFilter/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 
19 import itk
20 
21 if len(sys.argv) != 4:
22  print("Usage: " + sys.argv[0] + "<InputFileName> "
23  "<InputFileName> <OutputFileName> <K: ExpNegative parameter>")
24  sys.exit(1)
25 
26 inputFileName = sys.argv[1]
27 outputFileName = sys.argv[2]
28 k = float(sys.argv[3])
29 
30 Dimension = 2
31 PixelType = itk.F
32 ImageType = itk.Image[PixelType, Dimension]
33 
34 reader = itk.ImageFileReader[ImageType].New()
35 reader.SetFileName(inputFileName)
36 
37 expFilter = itk.ExpNegativeImageFilter[ImageType, ImageType].New()
38 expFilter.SetInput(reader.GetOutput())
39 expFilter.SetFactor(k)
40 
41 writer = itk.ImageFileWriter[ImageType].New()
42 writer.SetFileName(outputFileName)
43 writer.SetInput(expFilter.GetOutput())
44 
45 writer.Update()
itk::ExpNegativeImageFilter
Computes the function exp(-K.x) for each input pixel.
Definition: itkExpNegativeImageFilter.h:96
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::Image
Templated n-dimensional image class.
Definition: itkImage.h:86