ImageDownsampler Class Reference

#include <ImFusion/Base/ImageDownsampler.h>

Manager for image downsampling/upsampling. More...

Detailed Description

Manager for image downsampling/upsampling.

This class should be used when some computations should be executed on an image with a lower resolution. The intended workflow is : OriginalImage -(ImageDownsampler::downsample)-> DownsampledImage -(SomeAlgorithm)-> DownsampledOutput -(ImageDownsampler::upsample)-> Output

If the input image has a mask, the mask will be converted to an ExplicitMask and resampled as well.

Public Types
enum	ResamplingMode {   MAXDIMENSION , MAXDIMENSION_EQUAL , MAXSIZE , MAXSIZE_EQUAL ,   MAXSPACING , MINSPACING , SPACING_EQUAL }
enum	ResamplingMethod { NEAREST , LINEAR , HYBRID }

Public Member Functions
	ImageDownsampler (const vec3 &originalSpacing, ResamplingMode mode, double resamplingParameter, ResamplingMethod method)
void	downsample (const SharedImage *inIm, SharedImage *&outIm, bool labelMode=false, bool zeroMask=false)
void	downsample (const SharedImageSet *inIm, SharedImageSet *&outIm, bool labelMode=false, bool zeroMask=false)
void	upsample (const SharedImage *inIm, SharedImage *&outIm, bool labelMode=false, bool zeroMask=false)
void	upsample (const SharedImageSet *inIm, SharedImageSet *&outIm, bool labelMode=false, bool zeroMask=false)
bool	different (const Image *desc) const
	Returns true if the resulting image dimensions are different and hence processing is necessary.

Protected Attributes
vec3	m_originalSpacing
ResamplingMode	m_mode
ResamplingMethod	m_method
double	m_resamplingParam
int	m_newWidth
int	m_newHeight
int	m_newSlices
double	m_newSpacing [3]

Member Enumeration Documentation

ResamplingMode

enum ResamplingMode

Enumerator
MAXDIMENSION	Scales down all dimensions by a common factor such that the maximum dimension is equal to the resampling parameter.
MAXDIMENSION_EQUAL	Sets all dimensions to be equal to the resampling parameter.
MAXSIZE	Scales down all dimensions by a common factor such that the total data size is equal to the resampling parameter.
MAXSIZE_EQUAL	Sets all dimensions to be equal and such that the total data size is equal to the resampling parameter.
MAXSPACING	Scales down all dimensions by a common factor such that the maximum spacing is equal to the resampling parameter.
MINSPACING	Scales down all dimensions by a common factor such that the minimum spacing is equal to the resampling parameter.
SPACING_EQUAL	Sets the spacing of all dimensions to be equal to the resampling parameter.

ResamplingMethod

enum ResamplingMethod

Enumerator
NEAREST	Nearest neighbor interpolation.
LINEAR	Linear interpolation.
HYBRID	Nearest for downsampling, linear for upsampling.

---

The documentation for this class was generated from the following file:

• ImFusion/Base/ImageDownsampler.h