From 98974132dfb169419b1a7026c7bbbf1df9882ca0 Mon Sep 17 00:00:00 2001
From: Jordi Inglada <jordi.inglada@orfeo-toolbox.org>
Date: Wed, 14 May 2008 14:28:38 +0000
Subject: [PATCH] Exemple ImageSeriesIO
---
Examples/IO/CMakeLists.txt | 4 +
Examples/IO/ImageSeriesIOExample.cxx | 216 +++++++++++++++++++++++++++
2 files changed, 220 insertions(+)
create mode 100644 Examples/IO/ImageSeriesIOExample.cxx
diff --git a/Examples/IO/CMakeLists.txt b/Examples/IO/CMakeLists.txt
index aaf3ef5185..d5375714fa 100644
--- a/Examples/IO/CMakeLists.txt
+++ b/Examples/IO/CMakeLists.txt
@@ -39,6 +39,10 @@ TARGET_LINK_LIBRARIES(MultibandImageReadWrite OTBCommon OTBIO ITKCommon ITKIO)
ADD_EXECUTABLE(ExtractROI ExtractROI.cxx )
TARGET_LINK_LIBRARIES(ExtractROI OTBCommon OTBIO ITKCommon ITKIO)
+ADD_EXECUTABLE(ImageSeriesIOExample ImageSeriesIOExample.cxx )
+TARGET_LINK_LIBRARIES(ImageSeriesIOExample OTBCommon OTBIO ITKCommon ITKIO)
+
+
ADD_EXECUTABLE(MetadataExample MetadataExample.cxx )
TARGET_LINK_LIBRARIES(MetadataExample OTBCommon OTBIO ITKCommon ITKIO)
diff --git a/Examples/IO/ImageSeriesIOExample.cxx b/Examples/IO/ImageSeriesIOExample.cxx
new file mode 100644
index 0000000000..f8c34bf8b6
--- /dev/null
+++ b/Examples/IO/ImageSeriesIOExample.cxx
@@ -0,0 +1,216 @@
+/*=========================================================================
+
+ Program: ORFEO Toolbox
+ Language: C++
+ Date: $Date$
+ Version: $Revision$
+
+
+ Copyright (c) Centre National d'Etudes Spatiales. All rights reserved.
+ See OTBCopyright.txt for details.
+
+ Some parts of this code are derived from ITK. See ITKCopyright.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.
+
+=========================================================================*/
+
+#if defined(_MSC_VER)
+#pragma warning ( disable : 4786 )
+#endif
+
+#ifdef __BORLANDC__
+#define ITK_LEAN_AND_MEAN
+#endif
+
+
+#include <iostream>
+
+// Software Guide : BeginLatex
+//
+// This example shows how to read a list of images and concatenate
+// them into a vector image. We will write a program which is able to
+// perform this operation taking advantage of the streaming
+// functionnalities of the processing pipeline. We will assume that
+// all the input images have the same size and a single band.
+//
+// The following header files will be needed:
+//
+// Software Guide : EndLatex
+
+
+// Software Guide : BeginCodeSnippet
+#include "otbImage.h"
+#include "otbVectorImage.h"
+#include "otbImageFileReader.h"
+#include "otbObjectList.h"
+#include "otbImageList.h"
+#include "otbImageListToVectorImageFilter.h"
+#include "otbStreamingImageFileWriter.h"
+// Software Guide : EndCodeSnippet
+
+
+int main(int argc, char** argv)
+{
+ if(argc < 4 )
+ {
+ std::cerr << "Usage: " << argv[0] ;
+ std::cerr << "outputImage image1 image2 ... " << std::endl;
+ }
+
+ const unsigned int NbImages = argc-2;
+
+ std::cout << "Concat of " << NbImages << " images into a multi-band image " <<
+ std::endl;
+
+// Software Guide : BeginLatex
+//
+// We will start by defining the types for the input images and the
+// associated readers.
+//
+// Software Guide : EndLatex
+
+
+// Software Guide : BeginCodeSnippet
+ typedef unsigned short int PixelType;
+ const unsigned int Dimension = 2;
+
+ typedef otb::Image< PixelType, Dimension > InputImageType;
+
+ typedef otb::ImageFileReader< InputImageType > ImageReaderType;
+// Software Guide : EndCodeSnippet
+
+// Software Guide : BeginLatex
+//
+// We will use a list of image file readers in order to open all the
+// input images at once. For this, we use the
+// \doxygen{otb}{ObjectList} object and we template it over the type
+// of the readers.
+//
+// Software Guide : EndLatex
+
+
+// Software Guide : BeginCodeSnippet
+ typedef otb::ObjectList< ImageReaderType > ReaderListType;
+
+ ReaderListType::Pointer readerList = ReaderListType::New();
+
+// Software Guide : EndCodeSnippet
+
+// Software Guide : BeginLatex
+//
+// We will also build a list of input images in order to store the
+// smart pointers obtained at the output of each reader. This allows
+// us to build a pipeline without really reading the images and using
+// lots of RAM. The \doxygen{otb}{ImageList} object will be used.
+//
+// Software Guide : EndLatex
+
+
+// Software Guide : BeginCodeSnippet
+ typedef otb::ImageList< InputImageType > ImageListType;
+
+ ImageListType::Pointer imageList = ImageListType::New();
+
+// Software Guide : EndCodeSnippet
+
+// Software Guide : BeginLatex
+//
+// We can now loop over the input image list in order to populate the
+// reader list and the input image list.
+//
+// Software Guide : EndLatex
+
+
+// Software Guide : BeginCodeSnippet
+ for(unsigned int i = 0; i<NbImages; i++)
+ {
+
+ ImageReaderType::Pointer imageReader = ImageReaderType::New();
+
+ imageReader->SetFileName( argv[i+2] );
+
+ std::cout << "Adding image " << argv[i+2] << std::endl;
+
+ imageReader->UpdateOutputInformation();
+
+ imageList->PushBack( imageReader->GetOutput() );
+
+ readerList->PushBack( imageReader );
+
+ }
+
+// Software Guide : EndCodeSnippet
+
+// Software Guide : BeginLatex
+//
+// All the input images will be concatenated into a single output
+// vector image. For this matter, we will use the
+// \doxygen{otb}{ImageListToVectorImageFilter} which is templated
+// over the input image list type and the output vector image type.
+//
+// Software Guide : EndLatex
+
+
+// Software Guide : BeginCodeSnippet
+ typedef otb::VectorImage< PixelType, Dimension > VectorImageType;
+
+ typedef otb::ImageListToVectorImageFilter< ImageListType, VectorImageType >
+ ImageListToVectorImageFilterType;
+
+ ImageListToVectorImageFilterType::Pointer iL2VI =
+ ImageListToVectorImageFilterType::New();
+
+// Software Guide : EndCodeSnippet
+
+// Software Guide : BeginLatex
+//
+// We plug the image list as input of the filter and use a
+// \doxygen{otb}{StreamingImageFileWriter} to write the result image
+// to a file, so that the streaming capabilities of all the readers
+// and the filter are used.
+//
+// Software Guide : EndLatex
+
+
+// Software Guide : BeginCodeSnippet
+ iL2VI->SetInput( imageList );
+
+ typedef otb::StreamingImageFileWriter< VectorImageType > ImageWriterType;
+
+ ImageWriterType::Pointer imageWriter = ImageWriterType::New();
+
+ imageWriter->SetFileName( argv[1] );
+
+// Software Guide : EndCodeSnippet
+
+// Software Guide : BeginLatex
+//
+// We can tune the size of the image tiles as a function of the
+// number of input images, so that the total memory footprint of the
+// pipeline is constant for any execution of the program.
+//
+// Software Guide : EndLatex
+
+
+// Software Guide : BeginCodeSnippet
+
+ unsigned long size = (10000 * 10000 * sizeof(PixelType)) / NbImages;
+
+ std::cout<<"Streaming size: "<<size<<std::endl;
+
+ imageWriter->SetBufferMemorySize(size);
+
+ imageWriter->SetInput( iL2VI->GetOutput() );
+
+ imageWriter->Update();
+
+// Software Guide : EndCodeSnippet
+
+
+ return 0;
+}
--
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