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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 itkTileImageFilter_h
#define itkTileImageFilter_h
#include "itkImageToImageFilter.h"
#include "itkFixedArray.h"
namespace itk
{
/** \class TileImageFilter
* \brief Tile multiple input images into a single output image.
*
* This filter will tile multiple images using a user-specified
* layout. The tile sizes will be large enough to accommodate the
* largest image for each tile. The layout is specified with the
* SetLayout method. The layout has the same dimension as the output
* image. If all entries of the layout are positive, the tiled output
* will contain the exact number of tiles. If the layout contains a 0
* in the last dimension, the filter will compute a size that will
* accommodate all of the images. Empty tiles are filled with the
* value specified with the SetDefault value method. The input images
* must have a dimension less than or equal to the output image. The
* output image have a larger dimension than the input images. This
* filter can be used to create a volume from a series of inputs by
* specifying a layout of 1,1,0.
* \ingroup ITKImageGrid
*
* \wiki
* \wikiexample{ImageProcessing/TileImageFilter,Tile multiple images into another image}
* \wikiexample{ImageProcessing/TileImageFilter_CreateVolume,Stack multiple 2D images into a 3D image}
* \wikiexample{ImageProcessing/TileImageFilter_SideBySide,Tile multiple images side by side}
* \endwiki
*/
template< typename TInputImage, typename TOutputImage >
class ITK_TEMPLATE_EXPORT TileImageFilter:
public ImageToImageFilter< TInputImage, TOutputImage >
{
public:
/** Standard Self typedef */
typedef TileImageFilter Self;
typedef ImageToImageFilter< TInputImage, TOutputImage > Superclass;
typedef SmartPointer< Self > Pointer;
typedef SmartPointer< const Self > ConstPointer;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Runtime information support. */
itkTypeMacro(TileImageFilter, ImageToImageFilter);
/** Image pixel value typedef. */
typedef typename TInputImage::PixelType InputPixelType;
typedef typename TOutputImage::PixelType OutputPixelType;
/** Image related typedefs. */
typedef typename TInputImage::Pointer InputImagePointer;
typedef typename TOutputImage::Pointer OutputImagePointer;
typedef typename NumericTraits<OutputPixelType>::ValueType OutputPixelComponentType;
typedef typename TInputImage::SizeType InputSizeType;
typedef typename TInputImage::IndexType InputIndexType;
typedef typename TInputImage::RegionType InputImageRegionType;
typedef typename TOutputImage::SizeType OutputSizeType;
typedef typename TOutputImage::IndexType OutputIndexType;
typedef typename TOutputImage::RegionType OutputImageRegionType;
/** Image related typedefs. */
itkStaticConstMacro(InputImageDimension, unsigned int,
TInputImage::ImageDimension);
itkStaticConstMacro(OutputImageDimension, unsigned int,
TOutputImage::ImageDimension);
/** \class TileInfo
* Define a tile structure
* \ingroup ITKImageGrid
*/
class TileInfo
{
public:
int m_ImageNumber;
OutputImageRegionType m_Region;
TileInfo():m_ImageNumber(-1) {}
};
typedef Image< TileInfo, itkGetStaticConstMacro(OutputImageDimension) > TileImageType;
/** LayoutArray type. */
typedef FixedArray< unsigned int, itkGetStaticConstMacro(OutputImageDimension) > LayoutArrayType;
/** Set/Get the layout of the tiles. If the last Layout value is 0,
* the filter will compute a value that will acoomodate all of the
* images. */
itkSetMacro(Layout, LayoutArrayType);
itkGetConstMacro(Layout, LayoutArrayType);
/** Set the pixel value for locations that are not covered by an
* input image. The default default pixel value is Zero. */
itkSetMacro(DefaultPixelValue, OutputPixelType);
/** Get the pixel value for locations that are not covered by an
* input image. */
itkGetConstMacro(DefaultPixelValue, OutputPixelType);
#ifdef ITK_USE_CONCEPT_CHECKING
// Begin concept checking
itkConceptMacro( OutputEqualityComparableCheck,
( Concept::EqualityComparable< OutputPixelType > ) );
itkConceptMacro( SameTypeCheck,
( Concept::SameType< InputPixelType, OutputPixelType > ) );
itkConceptMacro( OutputOStreamWritableCheck,
( Concept::OStreamWritable< OutputPixelType > ) );
// End concept checking
#endif
protected:
TileImageFilter();
// ~TileImageFilter(){} default implementation ok
void PrintSelf(std::ostream & os, Indent indent) const ITK_OVERRIDE;
void GenerateInputRequestedRegion() ITK_OVERRIDE;
void GenerateOutputInformation() ITK_OVERRIDE;
void GenerateData() ITK_OVERRIDE;
/** Override VeriyInputInformation() since this filter's inputs do
* not need to occoupy the same physical space.
*
* \sa ProcessObject::VerifyInputInformation
*/
void VerifyInputInformation() ITK_OVERRIDE;
private:
ITK_DISALLOW_COPY_AND_ASSIGN(TileImageFilter);
typename TileImageType::Pointer m_TileImage;
OutputPixelType m_DefaultPixelValue;
LayoutArrayType m_Layout;
}; // end of class
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkTileImageFilter.hxx"
#endif
#endif
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