/usr/include/ITK-4.9/itkImageTransformHelper.h is in libinsighttoolkit4-dev 4.9.0-4ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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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 itkImageTransformHelper_h
#define itkImageTransformHelper_h
#include "itkConceptChecking.h"
#include "itkImageBase.h"
#include "itkMatrix.h"
#include "vnl/vnl_math.h"
namespace itk
{
/** \class ImageTransformHelper
* \brief Fast index/physical index computation
* \ingroup ITKCommon
*/
template< unsigned int NImageDimension, unsigned int R, unsigned int C, typename TPointValue = double, typename TMatrixValue=double >
class ImageTransformHelper
{
public:
typedef ImageBase< NImageDimension > ImageType;
typedef typename ImageType::IndexType IndexType;
typedef typename ImageType::SpacingType SpacingType;
typedef Matrix< TMatrixValue, NImageDimension, NImageDimension > MatrixType;
typedef typename ImageType::PointType OriginType;
typedef Point< double, NImageDimension > DoublePoint;
typedef Point< float, NImageDimension > FloatPoint;
typedef Concept::Detail::UniqueType_bool< false > UniqueTypeBoolFalse;
typedef Concept::Detail::UniqueType_bool< true > UniqueTypeBoolTrue;
//
// Methods with DoublePoint
//
// IndexToPhysicalPoint with full matrix
//
//
inline static void TransformIndexToPhysicalPoint(
const MatrixType & matrix, const OriginType & origin,
const IndexType & index, DoublePoint & point)
{
ImageTransformHelper< NImageDimension, R, C, TPointValue, TMatrixValue >::
TransformIndexToPhysicalPointRow(
matrix, origin,
index, point,
Concept::Detail::UniqueType_bool< ( R + 1 == 0 ) >() );
}
inline static void TransformIndexToPhysicalPointRow(
const MatrixType & matrix, const OriginType & origin,
const IndexType & index, DoublePoint & point,
const UniqueTypeBoolFalse &)
{
point[R] = origin[R];
// Start column
ImageTransformHelper< NImageDimension, R, C, TPointValue, TMatrixValue >
::TransformIndexToPhysicalPointCol(
matrix,
index, point,
Concept::Detail::UniqueType_bool< ( C + 1 == 0 ) >() );
// Do Next Row
ImageTransformHelper< NImageDimension, R - 1, C, TPointValue, TMatrixValue >
::TransformIndexToPhysicalPointRow(
matrix, origin,
index, point,
Concept::Detail::UniqueType_bool< ( R == 0 ) >() );
}
inline static void TransformIndexToPhysicalPointRow(
const MatrixType &, const OriginType &,
const IndexType &, DoublePoint &,
const UniqueTypeBoolTrue &)
{
// Do last row
}
inline static void TransformIndexToPhysicalPointCol(
const MatrixType & matrix,
const IndexType & index, DoublePoint & point,
const UniqueTypeBoolFalse &)
{
point[R] = point[R] + matrix[R][C] * index[C];
// Do next dimension
ImageTransformHelper< NImageDimension, R, C - 1, TPointValue, TMatrixValue >
::TransformIndexToPhysicalPointCol(
matrix,
index, point,
Concept::Detail::UniqueType_bool< ( C == 0 ) >() );
}
inline static void TransformIndexToPhysicalPointCol(
const MatrixType &,
const IndexType &, DoublePoint &,
const UniqueTypeBoolTrue &)
{}
// PhysicalPointToIndex with full matrix
//
//
inline static void TransformPhysicalPointToIndex(
const MatrixType & matrix, const OriginType & origin,
const DoublePoint & point, IndexType & index)
{
DoublePoint rindex;
ImageTransformHelper< NImageDimension, R, C, TPointValue, TMatrixValue >::
TransformPhysicalPointToIndexRow(
matrix, origin,
point, rindex, index,
Concept::Detail::UniqueType_bool< ( R + 1 == 0 ) >() );
}
inline static void TransformPhysicalPointToIndexRow(
const MatrixType & matrix, const OriginType & origin,
const DoublePoint & point, DoublePoint & rindex, IndexType & index,
const UniqueTypeBoolFalse &)
{
rindex[R] = 0.0;
// Start column
ImageTransformHelper< NImageDimension, R, C, TPointValue, TMatrixValue >
::TransformPhysicalPointToIndexCol(
matrix, origin,
point, rindex, index,
Concept::Detail::UniqueType_bool< ( C + 1 == 0 ) >() );
// Do next row
ImageTransformHelper< NImageDimension, R - 1, C, TPointValue, TMatrixValue >
::TransformPhysicalPointToIndexRow(
matrix, origin,
point, rindex, index,
Concept::Detail::UniqueType_bool< ( R == 0 ) >() );
}
inline static void TransformPhysicalPointToIndexRow(
const MatrixType &, const OriginType &,
const DoublePoint &, DoublePoint &, IndexType &,
const UniqueTypeBoolTrue &)
{
// Do last row
}
inline static void TransformPhysicalPointToIndexCol(
const MatrixType & matrix, const OriginType & origin,
const DoublePoint & point, DoublePoint & rindex, IndexType & index,
const UniqueTypeBoolFalse &)
{
rindex[R] = rindex[R] + matrix[R][C] * ( point[C] - origin[C] );
// Do next dimension
ImageTransformHelper< NImageDimension, R, C - 1, TPointValue, TMatrixValue >
::TransformPhysicalPointToIndexCol(
matrix, origin,
point, rindex, index,
Concept::Detail::UniqueType_bool< ( C == 0 ) >() );
}
inline static void TransformPhysicalPointToIndexCol(
const MatrixType &, const OriginType &,
const DoublePoint &, DoublePoint & rindex, IndexType & index,
const UniqueTypeBoolTrue &)
{
index[R] = Math::RoundHalfIntegerUp< IndexValueType >(rindex[R]);
}
//
// Methods with FloatPoint
//
// IndexToPhysicalPoint with full matrix
//
//
inline static void TransformIndexToPhysicalPoint(
const MatrixType & matrix, const OriginType & origin,
const IndexType & index, FloatPoint & point)
{
ImageTransformHelper< NImageDimension, R, C, TPointValue, TMatrixValue >::
TransformIndexToPhysicalPointRow(
matrix, origin,
index, point,
Concept::Detail::UniqueType_bool< ( R + 1 == 0 ) >() );
}
inline static void TransformIndexToPhysicalPointRow(
const MatrixType & matrix, const OriginType & origin,
const IndexType & index, FloatPoint & point,
const UniqueTypeBoolFalse &)
{
point[R] = origin[R];
// Start column
ImageTransformHelper< NImageDimension, R, C, TPointValue, TMatrixValue >
::TransformIndexToPhysicalPointCol(
matrix,
index, point,
Concept::Detail::UniqueType_bool< ( C + 1 == 0 ) >() );
// Do Next Row
ImageTransformHelper< NImageDimension, R - 1, C, TPointValue, TMatrixValue >
::TransformIndexToPhysicalPointRow(
matrix, origin,
index, point,
Concept::Detail::UniqueType_bool< ( R == 0 ) >() );
}
inline static void TransformIndexToPhysicalPointRow(
const MatrixType &, const OriginType &,
const IndexType &, FloatPoint &,
const UniqueTypeBoolTrue &)
{
// Do last row
}
inline static void TransformIndexToPhysicalPointCol(
const MatrixType & matrix,
const IndexType & index, FloatPoint & point,
const UniqueTypeBoolFalse &)
{
point[R] = point[R] + matrix[R][C] * index[C];
// Do next dimension
ImageTransformHelper< NImageDimension, R, C - 1, TPointValue, TMatrixValue >
::TransformIndexToPhysicalPointCol(
matrix,
index, point,
Concept::Detail::UniqueType_bool< ( C == 0 ) >() );
}
inline static void TransformIndexToPhysicalPointCol(
const MatrixType &,
const IndexType &, FloatPoint &,
const UniqueTypeBoolTrue &)
{}
// PhysicalPointToIndex with full matrix
//
//
inline static void TransformPhysicalPointToIndex(
const MatrixType & matrix, const OriginType & origin,
const FloatPoint & point, IndexType & index)
{
FloatPoint rindex;
ImageTransformHelper< NImageDimension, R, C, TPointValue, TMatrixValue >::
TransformPhysicalPointToIndexRow(
matrix, origin,
point, rindex, index,
Concept::Detail::UniqueType_bool< ( R + 1 == 0 ) >() );
}
inline static void TransformPhysicalPointToIndexRow(
const MatrixType & matrix, const OriginType & origin,
const FloatPoint & point, FloatPoint & rindex, IndexType & index,
const UniqueTypeBoolFalse &)
{
rindex[R] = 0.0;
// Start column
ImageTransformHelper< NImageDimension, R, C, TPointValue, TMatrixValue >
::TransformPhysicalPointToIndexCol(
matrix, origin,
point, rindex, index,
Concept::Detail::UniqueType_bool< ( C + 1 == 0 ) >() );
// Do next row
ImageTransformHelper< NImageDimension, R - 1, C, TPointValue, TMatrixValue >
::TransformPhysicalPointToIndexRow(
matrix, origin,
point, rindex, index,
Concept::Detail::UniqueType_bool< ( R == 0 ) >() );
}
inline static void TransformPhysicalPointToIndexRow(
const MatrixType &, const OriginType &,
const FloatPoint &, FloatPoint &, IndexType &,
const UniqueTypeBoolTrue &)
{
// Do last row
}
inline static void TransformPhysicalPointToIndexCol(
const MatrixType & matrix, const OriginType & origin,
const FloatPoint & point, FloatPoint & rindex, IndexType & index,
const UniqueTypeBoolFalse &)
{
rindex[R] = rindex[R] + matrix[R][C] * ( point[C] - origin[C] );
// Do next dimension
ImageTransformHelper< NImageDimension, R, C - 1, TPointValue, TMatrixValue >
::TransformPhysicalPointToIndexCol(
matrix, origin,
point, rindex, index,
Concept::Detail::UniqueType_bool< ( C == 0 ) >() );
}
inline static void TransformPhysicalPointToIndexCol(
const MatrixType &, const OriginType &,
const FloatPoint &, FloatPoint & rindex, IndexType & index,
const UniqueTypeBoolTrue &)
{
index[R] = Math::RoundHalfIntegerUp< IndexValueType >(rindex[R]);
}
};
} // end namespace itk
#endif
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