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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: RGBImageReadWrite.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
#ifdef __BORLANDC__
#define ITK_LEAN_AND_MEAN
#endif
// Software Guide : BeginLatex
//
// RGB images are commonly used for representing data acquired from
// cryogenic sections, optical microscopy and endoscopy. This example
// illustrates how to read and write RGB color images to and from a file.
// This requires the following headers as shown.
//
// \index{itk::RGBPixel!Image}
// \index{RGB!writing Image}
// \index{RGB!reading Image}
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
#include "itkRGBPixel.h"
#include "itkImage.h"
#include "itkImageFileReader.h"
#include "itkImageFileWriter.h"
// Software Guide : EndCodeSnippet
int main( int argc, char ** argv )
{
// Verify the number of parameters in the command line
if( argc < 3 )
{
std::cerr << "Usage: " << std::endl;
std::cerr << argv[0] << " inputRGBImageFile outputRGBImageFile " << std::endl;
return EXIT_FAILURE;
}
// Software Guide : BeginLatex
//
// The \doxygen{RGBPixel} class is templated over the type used to
// represent each one of the red, green and blue components. A typical
// instantiation of the RGB image class might be as follows.
//
// \index{itk::RGBPixel!Instantiation}
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
typedef itk::RGBPixel< unsigned char > PixelType;
typedef itk::Image< PixelType, 2 > ImageType;
// Software Guide : EndCodeSnippet
// Software Guide : BeginLatex
//
// The image type is used as a template parameter to instantiate
// the reader and writer.
//
// \index{itk::ImageFileReader!RGB Image}
// \index{itk::ImageFileWriter!RGB Image}
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
typedef itk::ImageFileReader< ImageType > ReaderType;
typedef itk::ImageFileWriter< ImageType > WriterType;
ReaderType::Pointer reader = ReaderType::New();
WriterType::Pointer writer = WriterType::New();
// Software Guide : EndCodeSnippet
const char * inputFilename = argv[1];
const char * outputFilename = argv[2];
// Software Guide : BeginLatex
//
// The filenames of the input and output files must be provided to the
// reader and writer respectively.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
reader->SetFileName( inputFilename );
writer->SetFileName( outputFilename );
// Software Guide : EndCodeSnippet
ImageType::Pointer image = reader->GetOutput();
writer->SetInput( image );
// Software Guide : BeginLatex
//
// Finally, execution of the pipeline can be triggered by invoking the
// Update() method in the writer.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
writer->Update();
// Software Guide : EndCodeSnippet
// Software Guide : BeginLatex
//
// You may have noticed that apart from the declaration of the
// \code{PixelType} there is nothing in this code that is specific for RGB
// images. All the actions required to support color images are implemented
// internally in the \doxygen{ImageIO} objects.
//
// Software Guide : EndLatex
return EXIT_SUCCESS;
}
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