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/*=========================================================================
*
* Copyright Insight Software Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#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
* https://hdl.handle.net/1926/172
*
* \sa LabelToRGBImageFilter
* \sa LabelMapOverlayImageFilter, LabelOverlayFunctor
* \ingroup MultiThreaded
*
* \ingroup ITKImageFusion
*
* \wiki
* \wikiexample{ImageProcessing/LabelOverlayImageFilter,Overlay a LabelMap on an image}
* \endwiki
*/
template< typename TInputImage, typename TLabelImage, typename TOutputImage >
class ITK_TEMPLATE_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( 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() ITK_OVERRIDE {}
/** Process to execute before entering the multithreaded section */
void BeforeThreadedGenerateData() ITK_OVERRIDE;
/** Print internal ivars */
void PrintSelf(std::ostream & os, Indent indent) const ITK_OVERRIDE;
void GenerateOutputInformation() ITK_OVERRIDE;
private:
ITK_DISALLOW_COPY_AND_ASSIGN(LabelOverlayImageFilter);
double m_Opacity;
LabelPixelType m_BackgroundValue;
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkLabelOverlayImageFilter.hxx"
#endif
#endif
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