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/*=========================================================================
*
* Copyright UMC Utrecht and contributors
*
* 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 itkUpsampleBSplineParametersFilter_h
#define itkUpsampleBSplineParametersFilter_h
#include "itkObject.h"
#include "itkArray.h"
namespace itk
{
/** \class UpsampleBSplineParametersFilter
*
* \brief Convenience class for upsampling a B-spline coefficient image.
*
* The UpsampleBSplineParametersFilter class is a class that takes as input
* the B-spline parameters. It's purpose is to compute new B-spline parameters
* on a denser grid. Therefore, the user needs to supply the old B-spline grid
* (region, spacing, origin, direction), and the required B-spline grid.
*
*/
template <class TArray, class TImage>
class ITK_TEMPLATE_EXPORT UpsampleBSplineParametersFilter : public Object
{
public:
ITK_DISALLOW_COPY_AND_MOVE(UpsampleBSplineParametersFilter);
/** Standard class typedefs. */
using Self = UpsampleBSplineParametersFilter;
using Superclass = Object;
using Pointer = SmartPointer<Self>;
using ConstPointer = SmartPointer<const Self>;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Run-time type information (and related methods). */
itkTypeMacro(UpsampleBSplineParametersFilter, Object);
/** Typedefs. */
using ArrayType = TArray;
using ValueType = typename ArrayType::ValueType;
using ImageType = TImage;
using ImagePointer = typename ImageType::Pointer;
using PixelType = typename ImageType::PixelType;
using SpacingType = typename ImageType::SpacingType;
using OriginType = typename ImageType::PointType;
using DirectionType = typename ImageType::DirectionType;
using RegionType = typename ImageType::RegionType;
/** Dimension of the fixed image. */
itkStaticConstMacro(Dimension, unsigned int, ImageType::ImageDimension);
/** Set the origin of the current grid. */
itkSetMacro(CurrentGridOrigin, OriginType);
/** Set the spacing of the current grid. */
itkSetMacro(CurrentGridSpacing, SpacingType);
/** Set the direction of the current grid. */
itkSetMacro(CurrentGridDirection, DirectionType);
/** Set the region of the current grid. */
itkSetMacro(CurrentGridRegion, RegionType);
/** Set the origin of the required grid. */
itkSetMacro(RequiredGridOrigin, OriginType);
/** Set the spacing of the required grid. */
itkSetMacro(RequiredGridSpacing, SpacingType);
/** Set the direction of the required grid. */
itkSetMacro(RequiredGridDirection, DirectionType);
/** Set the region of the required grid. */
itkSetMacro(RequiredGridRegion, RegionType);
/** Set the B-spline order. */
itkSetMacro(BSplineOrder, unsigned int);
/** Compute the output parameter array. */
virtual void
UpsampleParameters(const ArrayType & param_in, ArrayType & param_out);
protected:
/** Constructor. */
UpsampleBSplineParametersFilter();
/** Destructor. */
~UpsampleBSplineParametersFilter() override = default;
/** PrintSelf. */
void
PrintSelf(std::ostream & os, Indent indent) const override;
/** Function that checks if upsampling is required. */
virtual bool
DoUpsampling();
private:
/** Private member variables. */
OriginType m_CurrentGridOrigin{};
SpacingType m_CurrentGridSpacing{};
DirectionType m_CurrentGridDirection{};
RegionType m_CurrentGridRegion{};
OriginType m_RequiredGridOrigin{};
SpacingType m_RequiredGridSpacing{};
DirectionType m_RequiredGridDirection{};
RegionType m_RequiredGridRegion{};
unsigned int m_BSplineOrder{};
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
# include "itkUpsampleBSplineParametersFilter.hxx"
#endif
#endif // end #ifndef itkUpsampleBSplineParametersFilter_h
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