ENH: add SmoothImageWithDiscreteGaussianFilter python example

Author: RomanFenioux

src/Filtering/Smoothing/SmoothImageWithDiscreteGaussianFilter/Code.py

@@ -0,0 +1,44 @@
+#!/usr/bin/env python
+
+# Copyright NumFOCUS
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#        http://www.apache.org/licenses/LICENSE-2.0.txt
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import itk
+import argparse
+
+parser = argparse.ArgumentParser(
+    description="Smoothing Image With Discrete Gaussian Filter."
+)
+parser.add_argument("input_image")
+parser.add_argument("output_image")
+parser.add_argument("sigma", type=float)
+args = parser.parse_args()
+
+PixelType = itk.UC
+Dimension = 2
+
+ImageType = itk.Image[PixelType, Dimension]
+
+reader = itk.ImageFileReader[ImageType].New()
+reader.SetFileName(args.input_image)
+
+smoother = itk.DiscreteGaussianImageFilter[ImageType, ImageType].New()
+smoother.SetInput(reader.GetOutput())
+smoother.SetSigma(args.sigma)
+
+writer = itk.ImageFileWriter[ImageType].New()
+writer.SetFileName(args.output_image)
+writer.SetInput(smoother.GetOutput())
+
+writer.Update()

src/Filtering/Smoothing/SmoothImageWithDiscreteGaussianFilter/Documentation.rst

@@ -28,6 +28,13 @@ Results
 Code
 ----
 
+Python
+......
+
+.. literalinclude:: Code.py
+   :language: python
+   :lines: 1, 16-
+
 C++
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