ITK  5.2.0
Insight Toolkit
SphinxExamples/src/Filtering/MathematicalMorphology/ErodeAGrayscaleImage/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 itk.auto_progress(2)
20 
21 if len(sys.argv) != 4:
22  print("Usage: " + sys.argv[0] + " <inputImage> <outputImage> <radius>")
23  sys.exit(1)
24 
25 inputImage = sys.argv[1]
26 outputImage = sys.argv[2]
27 radiusValue = int(sys.argv[3])
28 
29 PixelType = itk.UC
30 Dimension = 2
31 
32 ImageType = itk.Image[PixelType, Dimension]
33 
34 ReaderType = itk.ImageFileReader[ImageType]
35 reader = ReaderType.New()
36 reader.SetFileName(inputImage)
37 
38 StructuringElementType = itk.FlatStructuringElement[Dimension]
39 structuringElement = StructuringElementType.Ball(radiusValue)
40 
41 GrayscaleFilterType = itk.GrayscaleErodeImageFilter[
42  ImageType, ImageType, StructuringElementType]
43 grayscaleFilter = GrayscaleFilterType.New()
44 grayscaleFilter.SetInput(reader.GetOutput())
45 grayscaleFilter.SetKernel(structuringElement)
46 
47 WriterType = itk.ImageFileWriter[ImageType]
48 writer = WriterType.New()
49 writer.SetFileName(outputImage)
50 writer.SetInput(grayscaleFilter.GetOutput())
51 
52 writer.Update()
itk::FlatStructuringElement
A class to support a variety of flat structuring elements, including versions created by decompositio...
Definition: itkKernelImageFilter.h:27
itk::ImageFileReader
Data source that reads image data from a single file.
Definition: itkImageFileReader.h:75
itk::GrayscaleErodeImageFilter
Grayscale erosion of an image.
Definition: itkGrayscaleErodeImageFilter.h:54
itk::ImageFileWriter
Writes image data to a single file.
Definition: itkImageFileWriter.h:87
itk::Image
Templated n-dimensional image class.
Definition: itkImage.h:86