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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkLabelToRGBImageFilter.h
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.
=========================================================================*/
#ifndef __itkLabelToRGBImageFilter_h
#define __itkLabelToRGBImageFilter_h
#include "itkUnaryFunctorImageFilter.h"
#include "itkLabelToRGBFunctor.h"
namespace itk
{
/** \class LabelToRGBImageFilter
* \brief Apply a colormap to a label image
*
* Apply a colormap to a label image. The set of colors
* is a good selection of distinct colors. The user can choose to use a background
* value. In that case, a gray pixel with the same intensity than the background
* label is produced.
*
* \author Gaetan Lehmann. Biologie du Developpement et de la Reproduction, INRA de Jouy-en-Josas, France.
* \author Richard Beare. Department of Medicine, Monash University, Melbourne, Australia.
*
* \sa ScalarToRGBPixelFunctor LabelOverlayImageFilter
* \ingroup Multithreaded
*
*/
template <class TLabelImage, typename TOutputImage>
class ITK_EXPORT LabelToRGBImageFilter :
public
UnaryFunctorImageFilter<TLabelImage, TOutputImage,
Functor::LabelToRGBFunctor<
typename TLabelImage::PixelType,
typename TOutputImage::PixelType> >
{
public:
/** Standard class typedefs. */
typedef LabelToRGBImageFilter Self;
typedef SmartPointer<Self> Pointer;
typedef SmartPointer<const Self> ConstPointer;
typedef UnaryFunctorImageFilter<TLabelImage, TOutputImage,
Functor::LabelToRGBFunctor<
typename TLabelImage::PixelType,
typename TOutputImage::PixelType> > Superclass;
typedef TOutputImage OutputImageType;
typedef TLabelImage LabelImageType;
typedef typename TOutputImage::PixelType OutputPixelType;
typedef typename TLabelImage::PixelType LabelPixelType;
typedef typename NumericTraits< OutputPixelType >::ValueType OutputPixelValueType;
/** Runtime information support. */
itkTypeMacro(LabelToRGBImageFilter, UnaryFunctorImageFilter);
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Set/Get the background value */
itkSetMacro( BackgroundValue, LabelPixelType );
itkGetConstReferenceMacro( BackgroundValue, LabelPixelType );
/** Set/Get the background color in the output image */
itkSetMacro( BackgroundColor, OutputPixelType );
itkGetConstReferenceMacro( BackgroundColor, OutputPixelType );
/** Empty the color LUT container */
void ResetColors();
/** Get number of colors in the LUT container */
unsigned int GetNumberOfColors() const;
/** Type of the color component */
typedef typename OutputPixelType::ComponentType ComponentType;
/** Add color to the LUT container */
void AddColor( ComponentType r, ComponentType g, ComponentType b );
protected:
LabelToRGBImageFilter();
virtual ~LabelToRGBImageFilter() {};
/** Process to execute before entering the multithreaded section */
void BeforeThreadedGenerateData(void);
/** Print internal ivars */
void PrintSelf(std::ostream& os, Indent indent) const;
private:
LabelToRGBImageFilter(const Self&); //purposely not implemented
void operator=(const Self&); //purposely not implemented
OutputPixelType m_BackgroundColor;
LabelPixelType m_BackgroundValue;
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkLabelToRGBImageFilter.txx"
#endif
#endif
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