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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkComposeRGBImageFilter.h,v $
Language: C++
Date: $Date: 2007-09-27 11:36:40 $
Version: $Revision: 1.8 $
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.
=========================================================================*/
#ifndef __itkComposeRGBImageFilter_h
#define __itkComposeRGBImageFilter_h
#include "itkTernaryFunctorImageFilter.h"
#include "itkRGBPixel.h"
/** \class ComposeRGBImageFilter
* \brief Implements pixel-wise composition of an RGB pixel from three scalar images.
*
* This filter receives three scalar images as input. Each image containing
* one of the RGB components of a color image. The filter produces as output an
* RGB image in which the three components have been unified. The Component
* type is preserved from the PixelType of the input images.
*
* \ingroup IntensityImageFilters
*/
namespace itk
{
namespace Function {
template< class TInput >
class ComposeRGB
{
public:
typedef RGBPixel<TInput> OutputType;
ComposeRGB() {}
~ComposeRGB() {}
bool operator!=( const ComposeRGB & ) const
{
return false;
}
bool operator==( const ComposeRGB & other ) const
{
return !(*this != other);
}
inline OutputType operator()( const TInput & R,
const TInput & G,
const TInput & B)
{
OutputType rgbPixel;
rgbPixel.Set( R, G, B);
return rgbPixel;
}
};
}
template <typename TInputImage,
typename TOutputImage=
Image< RGBPixel< ITK_TYPENAME TInputImage::PixelType >,
::itk::GetImageDimension<TInputImage>::ImageDimension > >
class ITK_EXPORT ComposeRGBImageFilter :
public
TernaryFunctorImageFilter<TInputImage,TInputImage,
TInputImage,TOutputImage,
Function::ComposeRGB< ITK_TYPENAME TInputImage::PixelType > >
{
public:
/** Standard class typedefs. */
typedef ComposeRGBImageFilter Self;
typedef TernaryFunctorImageFilter<TInputImage,TInputImage,
TInputImage,TOutputImage,
Function::ComposeRGB<
ITK_TYPENAME TInputImage::PixelType >
> Superclass;
typedef SmartPointer<Self> Pointer;
typedef SmartPointer<const Self> ConstPointer;
typedef typename Superclass::OutputImageType OutputImageType;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Runtime information support. */
itkTypeMacro(ComposeRGBImageFilter,
TernaryFunctorImageFilter);
protected:
ComposeRGBImageFilter() {}
virtual ~ComposeRGBImageFilter() {}
private:
ComposeRGBImageFilter(const Self&); //purposely not implemented
void operator=(const Self&); //purposely not implemented
};
} // end namespace itk
#endif
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