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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkLabelOverlayImageFilter.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 __itkLabelOverlayImageFilter_h
#define __itkLabelOverlayImageFilter_h
#include "itkLabelOverlayFunctor.h"
#include "itkBinaryFunctorImageFilter.h"
#include "itkConceptChecking.h"
namespace itk
{
/** \class LabelOverlayImageFilter
* \brief Apply a colormap to a label image and put it on top of the
* input image
*
* Apply a colormap to a label image and put it on top of the input image.
* The set of colors is a good selection of distinct colors. The opacity of
* the label image can be defined by the user. The user can also choose if
* the want to use a background and which label value is the background.
* A background label produce a gray pixel with the same intensity
* than the input one.
*
* \author Gaetan Lehmann. Biologie du Developpement et de la Reproduction,
* INRA de Jouy-en-Josas, France.
*
* This class was contributed to the Insight Journal
* http://insight-journal.org/midas/handle.php?handle=1926/172
*
*
* \sa ScalarToRGBPixelFunctor LabelToRGBImageFilter
* \ingroup Multithreaded
*
*/
template <typename TInputImage, class TLabelImage, typename TOutputImage>
class ITK_EXPORT LabelOverlayImageFilter :
public
BinaryFunctorImageFilter<TInputImage, TLabelImage, TOutputImage,
Functor::LabelOverlayFunctor<
typename TInputImage::PixelType,
typename TLabelImage::PixelType,
typename TOutputImage::PixelType> >
{
public:
/** Standard class typedefs. */
typedef LabelOverlayImageFilter Self;
typedef BinaryFunctorImageFilter<TInputImage, TLabelImage, TOutputImage,
Functor::LabelOverlayFunctor<
typename TInputImage::PixelType,
typename TLabelImage::PixelType,
typename TOutputImage::PixelType> > Superclass;
typedef SmartPointer<Self> Pointer;
typedef SmartPointer<const Self> ConstPointer;
typedef TOutputImage OutputImageType;
typedef TLabelImage LabelImageType;
typedef TInputImage InputImageType;
typedef typename TOutputImage::PixelType OutputPixelType;
typedef typename TLabelImage::PixelType LabelPixelType;
typedef typename TInputImage::PixelType InputPixelType;
/** Runtime information support. */
itkTypeMacro(LabelOverlayImageFilter, BinaryFunctorImageFilter);
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Set the label image */
void SetLabelImage( const TLabelImage *input);
/** Get the label image */
const LabelImageType * GetLabelImage() const;
/** Set/Get the opacity of the colored label image. The value must be
* between 0 and 1
*/
itkSetMacro( Opacity, double );
itkGetConstReferenceMacro( Opacity, double );
/** Set/Get the background value */
itkSetMacro( BackgroundValue, LabelPixelType );
itkGetConstReferenceMacro( BackgroundValue, LabelPixelType );
#ifdef ITK_USE_CONCEPT_CHECKING
/** Begin concept checking */
itkConceptMacro(OutputHasPixelTraitsCheck,
(Concept::HasPixelTraits<OutputPixelType>));
itkConceptMacro(OutputPixelShouldHaveValueType,
(Concept::HasValueType<OutputPixelType>));
itkConceptMacro(OutputPixelShouldHaveBracketOperator,
(Concept::BracketOperator<
OutputPixelType,
unsigned int,
typename OutputPixelType::ValueType>));
/** End concept checking */
#endif
/** 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:
LabelOverlayImageFilter();
virtual ~LabelOverlayImageFilter() {};
/** Process to execute before entering the multithreaded section */
void BeforeThreadedGenerateData(void);
/** Print internal ivars */
void PrintSelf(std::ostream& os, Indent indent) const;
private:
LabelOverlayImageFilter(const Self&); //purposely not implemented
void operator=(const Self&); //purposely not implemented
double m_Opacity;
LabelPixelType m_BackgroundValue;
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkLabelOverlayImageFilter.txx"
#endif
#endif
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