TEST: Adding a test for ImageViewer with an image overlay (bug 035)

Testing/Code/Visu/CMakeLists.txt

@@ -179,6 +179,14 @@ ADD_TEST(viTvImageWidgetTransferFunctions ${VISU_TESTS2}
 	${TEMP}/viTvImageWidgetTransferFunctionsOutput.txt
         )
 
+#----------   otb::ImageViewer (Testing overlay, related to bug 35 -----------
+ADD_TEST(viTvImageViewerWithOverlay ${VISU_TESTS2}
+	otbImageViewerWithOverlay
+		${INPUTDATA}/couleurs.tif
+		128
+		128
+)
+
 # -------       Fichiers sources CXX -----------------------------------
 SET(BasicVisu_SRCS1
 otbImageWidgetBaseNew.cxx
@@ -206,6 +214,7 @@ otbHistogramAndTransferFunctionWidgetNew.cxx
 otbHistogramAndTransferFunctionWidget.cxx
 otbImageWidgetTransferFunctions.cxx
 otbImageWidgetTransferFunctionsNew.cxx
+otbImageViewerWithOverlay.cxx
 )
 
 INCLUDE_DIRECTORIES("${OTBTesting_BINARY_DIR}") 

Testing/Code/Visu/otbImageViewerWithOverlay.cxx

+/*=========================================================================
+
+  Program:   ORFEO Toolbox
+  Language:  C++
+  Date:      $Date$
+  Version:   $Revision$
+
+
+  Copyright (c) Centre National d'Etudes Spatiales. All rights reserved.
+  See OTBCopyright.txt for details.
+
+
+     This software is distributed WITHOUT ANY WARRANTY; without even 
+     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
+     PURPOSE.  See the above copyright notices for more information.
+
+=========================================================================*/
+#include "itkExceptionObject.h"
+#include "otbImageFileReader.h"
+#include "otbImageViewer.h"
+#include "otbMacro.h"
+#include "itkBinaryThresholdImageFilter.h"
+#include "otbChangeLabelImageFilter.h"
+
+int otbImageViewerWithOverlay( int argc, char * argv[] )
+{
+  char * filename = argv[1];
+  double upperThresh = atof(argv[2]);
+  unsigned char opacity = atoi(argv[3]);
+  
+
+  // Parse command line parameters
+  typedef double PixelType;
+  typedef otb::ImageViewer<PixelType>  ImageViewerType;
+  typedef ImageViewerType::SingleImageType ImageType;
+  typedef ImageViewerType::ViewModelType ViewModelType;
+  typedef otb::ImageFileReader<ImageType> ReaderType;
+  typedef ImageViewerType::OverlayImageType OverlayImageType;
+  typedef otb::Image<unsigned short,2> LabeledImageType;
+  typedef itk::BinaryThresholdImageFilter<ImageType,LabeledImageType> ThresholdFilterType;
+  typedef otb::ChangeLabelImageFilter<LabeledImageType,OverlayImageType> ChangeLabelFilterType;
+  typedef OverlayImageType::PixelType OverlayPixelType;
+    
+  // instantiation
+  ImageViewerType::Pointer viewer = ImageViewerType::New();
+  ThresholdFilterType::Pointer thresh = ThresholdFilterType::New();
+  ChangeLabelFilterType::Pointer chLabel = ChangeLabelFilterType::New();
+     
+  // check for input images
+  ReaderType::Pointer reader = ReaderType::New();
+  reader->SetFileName(filename);
+  reader->GenerateOutputInformation();
+
+  thresh->SetInput(reader->GetOutput());
+  thresh->SetInsideValue(1);
+  thresh->SetOutsideValue(0);
+  thresh->SetLowerThreshold(0);
+  thresh->SetUpperThreshold(upperThresh);
+  
+  chLabel->SetInput(thresh->GetOutput());
+  
+  OverlayPixelType insideValue,outsideValue;
+
+  insideValue.SetSize(3);
+  insideValue.Fill(0);
+  insideValue[0]=255;
+  
+  outsideValue.SetSize(3);
+  outsideValue.Fill(0);
+  outsideValue[2]=255;
+
+  chLabel->SetNumberOfComponentsPerPixel(3);
+  chLabel->SetChange(0,outsideValue);
+  chLabel->SetChange(1,insideValue);
+  chLabel->GetOutput()->UpdateOutputInformation();
+  
+
+  viewer->SetImage(reader->GetOutput());  
+  viewer->SetImageOverlay(chLabel->GetOutput());
+  viewer->SetUseImageOverlay(true);
+	
+  // build the app
+  viewer->Build();
+  viewer->SetImageOverlayOpacity(opacity);
+  viewer->SetViewModel(static_cast<ViewModelType>(0));
+  viewer->Show();
+      
+  Fl::check();
+  
+  //  Uncomment to hold display
+  //  Fl::run();
+
+  return EXIT_SUCCESS;
+}
+
+

Testing/Code/Visu/otbVisuTests2.cxx

@@ -39,4 +39,5 @@ REGISTER_TEST(otbHistogramAndTransferFunctionWidgetNew);
 REGISTER_TEST(otbHistogramAndTransferFunctionWidget);
 REGISTER_TEST(otbImageWidgetTransferFunctionsNew);
 REGISTER_TEST(otbImageWidgetTransferFunctions);
+REGISTER_TEST(otbImageViewerWithOverlay);
 }