From 93762d5ff42e302398ff3b3105f87ccd73123957 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?D=C5=BEenan=20Zuki=C4=87?= <dzenan.zukic@kitware.com>
Date: Mon, 11 Nov 2024 10:54:26 -0500
Subject: [PATCH] ENH: Revive ExtractContoursFromImage as
 SimpleContourExtractor

The example was commented out since the initial import commit:

ENH: Adding media wiki examples to sphinx examples
a82f59e7ef3b9e54961bc403f9198cb6c98d35f9
---
 src/Filtering/ImageFeature/CMakeLists.txt     |  2 ++
 .../CMakeLists.txt                            |  6 ++--
 .../Code.cxx                                  | 35 ++++++++++---------
 .../Documentation.rst                         |  0
 4 files changed, 24 insertions(+), 19 deletions(-)
 rename src/Filtering/ImageFeature/{ExtractContoursFromImage => SimpleContourExtractor}/CMakeLists.txt (82%)
 rename src/Filtering/ImageFeature/{ExtractContoursFromImage => SimpleContourExtractor}/Code.cxx (72%)
 rename src/Filtering/ImageFeature/{ExtractContoursFromImage => SimpleContourExtractor}/Documentation.rst (100%)

diff --git a/src/Filtering/ImageFeature/CMakeLists.txt b/src/Filtering/ImageFeature/CMakeLists.txt
index e17fc6691..4f522e376 100644
--- a/src/Filtering/ImageFeature/CMakeLists.txt
+++ b/src/Filtering/ImageFeature/CMakeLists.txt
@@ -17,6 +17,8 @@ add_example(ApplyAFilterOnlyToASpecifiedImageRegion)
 
 add_example(ApplyAFilterToASpecifiedRegionOfAnImage)
 
+add_example(SimpleContourExtractor)
+
 add_example(ZeroCrossingBasedEdgeDecor)
 compare_to_baseline(EXAMPLE_NAME ZeroCrossingBasedEdgeDecor
   BASELINE_PREFIX ZeroCrossingBasedEdgeDecor
diff --git a/src/Filtering/ImageFeature/ExtractContoursFromImage/CMakeLists.txt b/src/Filtering/ImageFeature/SimpleContourExtractor/CMakeLists.txt
similarity index 82%
rename from src/Filtering/ImageFeature/ExtractContoursFromImage/CMakeLists.txt
rename to src/Filtering/ImageFeature/SimpleContourExtractor/CMakeLists.txt
index ecfac63f0..2fe65a76d 100644
--- a/src/Filtering/ImageFeature/ExtractContoursFromImage/CMakeLists.txt
+++ b/src/Filtering/ImageFeature/SimpleContourExtractor/CMakeLists.txt
@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.16.3)
 
-project(ExtractContoursFromImage)
+project(SimpleContourExtractor)
 
 find_package(ITK REQUIRED)
 include(${ITK_USE_FILE})
@@ -15,11 +15,11 @@ install(TARGETS ${PROJECT_NAME}
   )
 
 install(FILES Code.cxx CMakeLists.txt
-  DESTINATION share/ITKSphinxExamples/Code/Filtering/ImageFeature/ExtractContoursFromImage/
+  DESTINATION share/ITKSphinxExamples/Code/Filtering/ImageFeature/SimpleContourExtractor/
   COMPONENT Code
   )
 
 
 enable_testing()
-add_test(NAME ExtractContoursFromImageTest
+add_test(NAME SimpleContourExtractorTest
   COMMAND ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/${PROJECT_NAME})
diff --git a/src/Filtering/ImageFeature/ExtractContoursFromImage/Code.cxx b/src/Filtering/ImageFeature/SimpleContourExtractor/Code.cxx
similarity index 72%
rename from src/Filtering/ImageFeature/ExtractContoursFromImage/Code.cxx
rename to src/Filtering/ImageFeature/SimpleContourExtractor/Code.cxx
index a57a92e1a..b2a7f5dba 100644
--- a/src/Filtering/ImageFeature/ExtractContoursFromImage/Code.cxx
+++ b/src/Filtering/ImageFeature/SimpleContourExtractor/Code.cxx
@@ -15,7 +15,7 @@
  *  limitations under the License.
  *
  *=========================================================================*/
-/*
+
 #include "itkImage.h"
 #include "itkImageFileWriter.h"
 #include "itkSimpleContourExtractorImageFilter.h"
@@ -23,20 +23,22 @@
 
 using UnsignedCharImageType = itk::Image<unsigned char, 2>;
 
-static void CreateImage(UnsignedCharImageType::Pointer image);
+static void
+CreateImage(UnsignedCharImageType::Pointer image);
 
-int main()
+int
+main()
 {
   auto image = UnsignedCharImageType::New();
   CreateImage(image);
 
-  using SimpleContourExtractorImageFilterType = itk::SimpleContourExtractorImageFilter <UnsignedCharImageType, UnsignedCharImageType>;
-  SimpleContourExtractorImageFilterType::Pointer contourFilter
-          = SimpleContourExtractorImageFilterType::New();
+  using SimpleContourExtractorImageFilterType =
+    itk::SimpleContourExtractorImageFilter<UnsignedCharImageType, UnsignedCharImageType>;
+  SimpleContourExtractorImageFilterType::Pointer contourFilter = SimpleContourExtractorImageFilterType::New();
   contourFilter->SetInput(image);
   contourFilter->Update();
 
-  using WriterType = itk::ImageFileWriter< UnsignedCharImageType  >;
+  using WriterType = itk::ImageFileWriter<UnsignedCharImageType>;
   auto writer = WriterType::New();
   writer->SetFileName("output.png");
   writer->SetInput(contourFilter->GetOutput());
@@ -45,36 +47,37 @@ int main()
   return EXIT_SUCCESS;
 }
 
-void CreateImage(UnsignedCharImageType::Pointer image)
+void
+CreateImage(UnsignedCharImageType::Pointer image)
 {
   // Create an image
   itk::Index<2> start{};
 
   auto size = itk::Size<2>::Filled(100);
 
-  itk::ImageRegion<2> region(start,size);
+  itk::ImageRegion<2> region(start, size);
 
   image->SetRegions(region);
   image->Allocate();
   image->FillBuffer(0);
 
   // Create a line pixels
-  for(unsigned int i = 40; i < 60; ++i)
-    {
+  for (unsigned int i = 40; i < 60; ++i)
+  {
     auto pixel = itk::Index<2>::Filled(i);
     image->SetPixel(pixel, 255);
-    }
+  }
 
   // Create another line of pixels
-  for(unsigned int i = 10; i < 20; ++i)
-    {
+  for (unsigned int i = 10; i < 20; ++i)
+  {
     itk::Index<2> pixel;
     pixel[0] = 10;
     pixel[1] = i;
     image->SetPixel(pixel, 255);
-    }
+  }
 
-  using WriterType = itk::ImageFileWriter< UnsignedCharImageType  >;
+  using WriterType = itk::ImageFileWriter<UnsignedCharImageType>;
   auto writer = WriterType::New();
   writer->SetFileName("input.png");
   writer->SetInput(image);
diff --git a/src/Filtering/ImageFeature/ExtractContoursFromImage/Documentation.rst b/src/Filtering/ImageFeature/SimpleContourExtractor/Documentation.rst
similarity index 100%
rename from src/Filtering/ImageFeature/ExtractContoursFromImage/Documentation.rst
rename to src/Filtering/ImageFeature/SimpleContourExtractor/Documentation.rst