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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkVectorToRGBImageAdaptorTest.cxx
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) Insight Software Consortium. All rights reserved.
See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm 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
/**
*
* This program tests the VectorToRGBImageAdaptor.
*
* This class allows to take an image of pixel type RGBPixel,
* and use it as if it was an image of pixel type itk::Vector<>.
*
*/
#include "itkVectorToRGBImageAdaptor.h"
#include "itkImageRegionIteratorWithIndex.h"
//-------------------------
//
// Main code
//
//-------------------------
int itkVectorToRGBImageAdaptorTest(int, char* [] ) {
//-------------------------------------
// Typedefs for convenience
//-------------------------------------
typedef float ValueType;
const unsigned int numberOfComponents = 3;
typedef itk::Vector< ValueType,
numberOfComponents > VectorPixelType;
const unsigned int ImageDimension = 2;
typedef itk::Image< VectorPixelType, ImageDimension > ImageType;
typedef itk::VectorToRGBImageAdaptor< ImageType > ImageAdaptorType;
typedef itk::ImageRegionIteratorWithIndex< ImageType > IteratorType;
typedef itk::ImageRegionIteratorWithIndex< ImageAdaptorType > RGBIteratorType;
ImageType::SizeType size;
size[0] = 2;
size[1] = 2;
ImageType::IndexType index;
index[0] = 0;
index[1] = 0;
ImageType::RegionType region;
region.SetIndex( index );
region.SetSize( size );
ImageType::Pointer image = ImageType::New();
image->SetLargestPossibleRegion( region );
image->SetBufferedRegion( region );
image->SetRequestedRegion( region );
image->Allocate();
IteratorType it1( image, image->GetRequestedRegion() );
// Value to initialize the pixels
ImageType::PixelType vector;
vector[0] = 1.2;
vector[1] = 1.3;
vector[2] = 1.4;
// Initializing all the pixel in the image
it1.GoToBegin();
while( !it1.IsAtEnd() )
{
it1.Set( vector );
++it1;
}
// Reading the values to verify the image content
std::cout << "--- Before --- " << std::endl;
it1.GoToBegin();
while( !it1.IsAtEnd() )
{
const ImageType::PixelType c( it1.Get() );
std::cout << c[0] << " ";
std::cout << c[1] << " ";
std::cout << c[2] << std::endl;
++it1;
}
ImageAdaptorType::Pointer adaptor = ImageAdaptorType::New();
adaptor->SetImage( image );
RGBIteratorType it2( adaptor, adaptor->GetRequestedRegion() );
// Set the values of the image, using the adaptor
typedef ImageAdaptorType::AccessorType::ExternalType RGBPixelType;
RGBPixelType color;
color[0] = 13;
color[1] = 17;
color[2] = 19;
it2.GoToBegin();
while( !it2.IsAtEnd() )
{
it2.Set( color );
++it2;
}
std::cout << "--- After --- " << std::endl;
it1.GoToBegin();
while( !it1.IsAtEnd() )
{
const ImageType::PixelType c( it1.Get() );
std::cout << c[0] << " ";
std::cout << c[1] << " ";
std::cout << c[2] << std::endl;
++it1;
}
return EXIT_SUCCESS;
}
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