ITK  5.2.0
Insight Toolkit
SphinxExamples/src/Filtering/ImageIntensity/ComputeSigmoid/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) != 7:
21  print("Usage: " + sys.argv[0] + " <inputImage> <outputImage>"
22  "<OutputMin> <OutputMax> <Alpha> <Beta>")
23  sys.exit(1)
24 
25 inputImage = sys.argv[1]
26 outputImage = sys.argv[2]
27 
28 PixelType = itk.UC
29 Dimension = 2
30 
31 ImageType = itk.Image[PixelType, Dimension]
32 
33 outputMinimum = int(sys.argv[3])
34 outputMaximum = int(sys.argv[4])
35 alpha = float(sys.argv[5])
36 beta = float(sys.argv[6])
37 
38 reader = itk.ImageFileReader[ImageType].New()
39 reader.SetFileName(inputImage)
40 
41 sigmoidFilter = itk.SigmoidImageFilter[ImageType, ImageType].New()
42 sigmoidFilter.SetInput(reader.GetOutput())
43 sigmoidFilter.SetOutputMinimum(outputMinimum)
44 sigmoidFilter.SetOutputMaximum(outputMaximum)
45 sigmoidFilter.SetAlpha(alpha)
46 sigmoidFilter.SetBeta(beta)
47 
48 writer = itk.ImageFileWriter[ImageType].New()
49 writer.SetFileName(outputImage)
50 writer.SetInput(sigmoidFilter.GetOutput())
51 
52 writer.Update()
itk::SigmoidImageFilter
Computes the sigmoid function pixel-wise.
Definition: itkSigmoidImageFilter.h:150
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