ITK  5.2.0
Insight Toolkit
SphinxExamples/src/Filtering/ImageFeature/AdditiveGaussianNoiseImageFilter/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) != 5:
21  print("Usage: " + sys.argv[0] + "< Input Image > < Output Image > [Mean] [Standard Deviation]")
22  sys.exit(1)
23 
24 inputImage = sys.argv[1]
25 outputImage = sys.argv[2]
26 mean = float(sys.argv[3])
27 deviation = float(sys.argv[4])
28 
29 # Use unsigned char to save to PNG format
30 InputPixelType = itk.UC
31 OutputPixelType = itk.UC
32 Dimension = 2
33 
34 InputImageType = itk.Image[InputPixelType, Dimension]
35 OutputImageType = itk.Image[OutputPixelType, Dimension]
36 
37 ReaderType = itk.ImageFileReader[InputImageType]
38 reader = ReaderType.New()
39 reader.SetFileName(inputImage)
40 
41 FilterType = itk.AdditiveGaussianNoiseImageFilter[InputImageType, InputImageType]
42 AdditiveFilter = FilterType.New()
43 AdditiveFilter.SetInput(reader.GetOutput())
44 AdditiveFilter.SetMean(mean)
45 AdditiveFilter.SetStandardDeviation(deviation)
46 
47 WriterType = itk.ImageFileWriter[OutputImageType]
48 writer = WriterType.New()
49 writer.SetFileName(outputImage)
50 writer.SetInput(AdditiveFilter.GetOutput())
51 
52 writer.Update()
itk::AdditiveGaussianNoiseImageFilter
Alter an image with additive Gaussian white noise.
Definition: itkAdditiveGaussianNoiseImageFilter.h:54
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