TEST : add test for apply gain filter

Modules/Filtering/Contrast/test/CMakeLists.txt

@@ -25,6 +25,7 @@ otbContrastTestDriver.cxx
 otbComputeHistoFilterNew.cxx
 otbComputeHistoFilter.cxx
 otbApplyGainFilterNew.cxx
+otbApplyGainFilter.cxx
 otbComputeGainLutFilterNew.cxx
 otbComputeGainLutFilter.cxx
 otbCLHistogramEqualizationFilterNew.cxx

Modules/Filtering/Contrast/test/otbApplyGainFilter.cxx

+/*
+ * Copyright (C) 2005-2017 Centre National d'Etudes Spatiales (CNES)
+ *
+ * This file is part of Orfeo Toolbox
+ *
+ *     https://www.orfeo-toolbox.org/
+ *
+ * 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
+ *
+ * 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.
+ */
+
+#include "otbImageFileWriter.h"
+#include "otbImageFileReader.h"
+#include "otbImage.h"
+#include "otbVectorImage.h"
+#include "otbApplyGainFilter.h"
+
+int otbApplyGainFilter(int itkNotUsed(argc), char * itkNotUsed(argv) [])
+{
+  typedef int InputPixelType;
+  typedef double LutPixelType;
+  const unsigned int Dimension = 2;
+
+  typedef otb::Image< InputPixelType ,  Dimension > InputImageType;
+  typedef otb::VectorImage< LutPixelType , Dimension > LutImageType;
+  typedef otb::ApplyGainFilter
+      < InputImageType , LutImageType , InputImageType > FilterType;
+
+  
+  typedef otb::ImageFileReader< InputImageType > ReaderType; 
+  typedef otb::ImageFileReader< LutImageType > ReaderLutType;
+  typedef otb::ImageFileWriter< InputImageType > WriterType;
+  ReaderType::Pointer reader ( ReaderType::New() );
+  ReaderLutType::Pointer readerLut ( ReaderLutType::New() );
+  WriterType::Pointer writer ( WriterType::New() );
+  reader->SetFileName( "/home/antoine/dev/my_data/test/smallinput.tif" );
+  readerLut->SetFileName( "/home/antoine/dev/my_data/test/small_glob_lut_ref.tif" );
+  writer->SetFileName( "/home/antoine/dev/my_data/test/small_glob_apply.tif" );
+  reader->UpdateOutputInformation();
+  readerLut->UpdateOutputInformation();
+
+  FilterType::Pointer appGain ( FilterType::New() );
+
+  appGain->SetInputLut( readerLut->GetOutput() );
+  appGain->SetInputImage( reader->GetOutput() );
+  appGain->SetMin(0);
+  appGain->SetMax(255);
+  appGain->ThumbSizeFromSpacingOn();
+
+  auto size = reader->GetOutput()->GetLargestPossibleRegion().GetSize();
+  appGain->SetThumbSize(size);
+
+  writer->SetInput( appGain->GetOutput() );
+  writer->Update();
+
+  return EXIT_SUCCESS;
+}
\ No newline at end of file

Modules/Filtering/Contrast/test/otbContrastTestDriver.cxx

@@ -27,6 +27,7 @@ void RegisterTests()
   REGISTER_TEST(otbComputeGainLutFilterNew);
   REGISTER_TEST(otbComputeGainLutFilter);
   REGISTER_TEST(otbApplyGainFilterNew);
+  REGISTER_TEST(otbApplyGainFilter);
   REGISTER_TEST(otbCLHistogramEqualizationFilterNew);
   REGISTER_TEST(otbCLHistogramEqualizationFilter);
   REGISTER_TEST(otbHelperCLAHE);