Un nouveau filtre pour l'OTB, qui permet de générer des quicklook en streaming...

Un nouveau filtre pour l'OTB, qui permet de générer des quicklook en streaming de manière très rapide.

Testing/Code/Visu/otbFullLargeImageWidget.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 "otbFixedSizeFullImageWidget.h"
-#include "otbImageFileReader.h"
-#include "itkNonThreadedShrinkImageFilter.h"
-#include "itkStreamingImageFilter.h"
-#include <FL/Fl.H>
-
-
-int otbFullLargeImageWidget( int argc, char * argv[] )
-{
-  try 
-    { 
-      char * filename = argv[1];      
-      typedef float PixelType;
-      typedef otb::FixedSizeFullImageWidget<PixelType> WidgetType;
-      typedef WidgetType::ImageType ImageType;
-      typedef otb::ImageFileReader<ImageType> ReaderType;
-      typedef itk::NonThreadedShrinkImageFilter<ImageType,ImageType> ShrinkFilterType;
-      typedef itk::StreamingImageFilter<ImageType,ImageType> StreamingFilterType;
-
-      ReaderType::Pointer reader = ReaderType::New();
-      ImageType::SizeType size;
-      // ImageType::IndexType index;
-      ImageType::RegionType region;
-
-      
-      reader->SetFileName(filename);
-      reader->GenerateOutputInformation();
-      ShrinkFilterType::Pointer shrink = ShrinkFilterType::New();
-      shrink->SetInput(reader->GetOutput());
-      shrink->SetShrinkFactors(10);
-      shrink->GenerateOutputInformation();
-      
-      // index.Fill(0);
-//       size.Fill(60);
-//       region.SetIndex(index);
-//       region.SetSize(size);
-//       shrink->GetOutput()->SetRequestedRegion(region);
-//       shrink->GenerateInputRequestedRegion();
-//       std::cout<<"Taille en sortie: "<<shrink->GetOutput()->GetRequestedRegion().GetSize()<<std::endl;  
-//       std::cout<<"Taille en entrée: "<<shrink->GetInput()->GetRequestedRegion().GetSize()<<std::endl;
-//       shrink->Update();
-      
-       StreamingFilterType::Pointer streaming = StreamingFilterType::New();
-       streaming->SetNumberOfStreamDivisions(size[0]/2);
-       streaming->SetInput(shrink->GetOutput());
-       
-      
-
-       size = shrink->GetOutput()->GetLargestPossibleRegion().GetSize();
-       Fl_Window window(size[0],size[1]);
-
-       WidgetType::Pointer widget = WidgetType::New();   
-       window.resizable(widget.GetPointer());
-       widget->SetInput(shrink->GetOutput());
-       // if(shrink->GetOutput()->GetNumberOfComponentsPerPixel()>=3)
-//  	widget->SetViewModelToRGB();
-//        else
-       widget->SetViewModelToGrayscale();
-       widget->Init(0,0,size[0],size[1],"Test Full Image Widget");
-       widget->redraw();
-       window.end();
-       window.show();
-       window.show();
-       widget->Show();
-       widget->redraw();
-       Fl::run();
-     } 
-
-  catch( itk::ExceptionObject & err ) 
-    { 
-      std::cout << "Exception itk::ExceptionObject levee !" << std::endl; 
-      std::cout << err << std::endl; 
-      return EXIT_FAILURE;
-    } 
-  catch( ... ) 
-    { 
-      std::cout << "Exception levee inconnue !" << std::endl; 
-      return EXIT_FAILURE;
-    } 
-
-
-  return EXIT_SUCCESS;
-}